Software Releases

SolarAPP+ is a web-based PV-permitting tool for residential systems provided at no-cost to AHJs. NREL will release updates as code revisions and new technology support emerge.

Changes made in each software update are listed below. To better understand how these changes may impact permitting processes, please visit Contractor's Guide: Releases Notes for a more detailed description of actions or adjustments needed by our installer community as they fill out the SolarAPP+ individual project application pages. For a view of planned improvements and new features, please visit SolarAPP+ Product Roadmap

4.6.0 Released on April 25, 2024

Improvements

Improve API endpoints to better resolve addresses and provide additional information
Added API endpoints to provide payment information and process payments
Cleaned up display of revision payments on the job card
Updated roof framing references to better handle inches and feet

Fixes

Updated the settings to remember valuation choice from onboarding
Updated menus to work on mobile devices
Corrected handling of upload files to only accept the most current upload
Cleaned up display and processing of extraneous fault current fields not applicable in projects
Added details to subject lines of emails to jurisdictions to aid in final approval of projects
Optimized data queries to speed up loading of permit and project pages
Cleaned up API error handling to provide better response and messaging

4.5.0 Released on March 26, 2024

Improvements

Made handling and display of units for dropdown fields more consistent
Made sure a jurisdiction could update their Stripe keys if necessary
Corrected project expiration dates to not change upon revision
Updated the For Installers page of the SolarApp+ website

Fixes

Provided more thorough credit card validation and error reporting
Corrected input validation to not allow required fields to be left blank
Cleaned up API input conditions likely to generate errors
Corrected issues with tables not display properly on the Long Form

4.4.0 Released on March 14, 2024

Improvements

New subpanels for relocated loads - added new electrical diagrams and tie-ins to support new subpanels for relocated loads when generation sources are tied at the Main Service Panel.
Environmental design variables API - added flexibility for jurisdictions to control what snow and wind weather variables should be used for projects either depending on project specific location or local design requirements.
Added detailed error messages for when credit cards are declined in paying for project permits
Updated SolarApp+ website with new press releases, statistics, and content for jurisdictions
Removed unit displays in input drop-down fields
Added spec version to approval PDF documents

Fixes

Added character limit check on jurisdiction note fields
Corrected wrap-around width of input display labels
Corrected installer on-boarding feature to allow jurisdiction selection
Corrected API bugs related to inconsistent input responses
Removed references to tables 3 and 5 for storage projects using DC batteries

4.3.0 Released on February 27, 2024

Improvements

Added compatibility check and warning flag for service ratings under 100 amps
Updated the process of getting user tokens for API use
Updated the website homepage with new feature article
Clarified inspection checklist labels to avoid inspection failures when only one load is relocated

Fixes

Fixed input form to remember value of all ESS responses between revisions
Updated long form display to reflect the correct number of current carrying conductors
Corrected issue where required input fields could be left blank
Updated issue involving the launch of pilot programs in jurisdictions
Corrected derate reference on busbar feeders when the feeder OCP rating equals the service rating
Cleaned up inspection checklist and long form display outputs to show proper values
Corrected code reference display errors to reflect codes applicable to the appropriate NEC code year
Added clarifications to the approval document labels for smaller service size
Clean up of API options relating to licenses and project access

4.2.0 Released on February 13, 2024

Improvements

Added NEC 2023 support
Removed code compliance references from uploaded PDF document
Updated API to allow additional features for contractors
Cleaned up fee processing for fees applying to more than one project type
Updated the installer onboarding workflow to better manage training compliance
Updated AHJ view of projects to show all approved projects regardless of pending revisions
Updated AHJ project export feature to better handle large numbers of projects
Added credit card approval pop-up for cards needing additional verification

Fixes

Cleaned up input references and output displays related to separating the IRC and NEC code years
Corrected jurisdiction filters so a filter by state now works
Corrected error in pilot confirmation processing
Fixed preview of Fire Bulletin Appendix so it will properly display on the Fire input page
Updated payment processing to avoid incomplete verification of payments

4.1.0 Released on January 23, 2024

Improvements

Added API capability to process project payments
Expanded system capabilities to accommodate additional NEC and IRC code years
Added restrictions so a main panel upgrade is only allowed for an existing busbar
Added the trademark designation to SolarApp+ when referenced in the application and generated documents
Added check to not allow SolarApp to be used on new construction
Updated check of DC/AC ratio flag to not apply if ESS and PV Inverter are certified as a single product

Fixes

Updated blocked address processing so invalid addresses are more gracefully handled
Corrected issue where the equipment grounding conductor wire gauge table was not displaying
Refined compatibility check on DC-DC converters to allow current difference of up to 0.5
Cleaned up API issues to provide better error reporting and recovery
Changed expiration logic for installer licenses to be valid through the end of the day on the expiration date (GMT)
Added safeguards to make sure uploaded PDF documents are in a valid format to allow inclusion in generated approval documents
Cleaned up various typos affecting displays and documents
Optimized the loading of the installer project page
Corrected jurisdiction search criteria to work with with the My Jurisdictions option
Corrected search options in the admin payments page
Corrected issue preventing job card from generating if fees were changed

4.0.0 Released on January 4, 2024

Improvements

Updated the way the system manages NEC and IRC code years to allow future revisions
Added ability for Admin to send a password reset request to a user
Added option for AHJ to better accommodate UL 9540A Spacing Exceptions

Fixes

Updated fee processing and display of fees on jobs card to provide a clearer tracking of charges and payments
Clarified error messages concerning jurisdiction settings to provide more information for resolution to the users
Corrected issue where incorrect jurisdiction was being selected for a project

3.15.0 Released on November 30, 2023

Improvements

Added Beta API capability to upload documents for use by Installer API
Added functionality to Admin to better manage and maintain jurisdiction data
Added a Fire Department review section for jurisdictions
Updated numbers and jurisdictions in the Solar Adoption at a Glance table
Added a save credit card checkbox to payment pages

Fixes

Improved Admin capabilities to better manage system data
Improved visibility for jurisdictions to see that Stripe keys have been saved
Bug fixes to the Beta versions of the Installer and AHJ APIs
Corrected the display conditions in the Inspection Checklist for a single service disconnect in a dedicated enclosure
Corrected issue of some fee calculations causing inaccurate results in the decimal places

3.13.0 Released on October 25, 2023

Improvements

Various improvements on the Installer APIs: project metadata, project inputs, project upload.
Swagger documentation for all new updated Installer APIs.
Added support for grid tied energy storage systems installed without a backup initiation device
AHJ onboarding form update.
Improvement on page loading

Fixes

Fixed a very rare use case where fees may double.
Various minor API issues

3.12.0 Released on September 26, 2023

Improvements

New features added to the Beta versions of the Installer and AHJ APIs
Enhanced the display of fault current information on the inspection checklist and long form
Added an option for an AHJ to require an utility interconnection agreement to be uploaded
Clarified various tool tips and display labels
Added logic to automatically detect valid installer licenses so so input is not required for each project
Added logic to check for and accommodate approved ESS units combined in parallel
Updated tie-in and processing logic for main lug only panels
Updated Solar Trace information on the main SolarApp website

Fixes

Fixed logic preventing AHJ from editing permit polity settings
Updated logic to check high and low temperatures entered by an AHJ fall within valid ranges
Added logic to prevent the upload of documents with an invalid PDF format
Updated roof compatibility logic to comply with defined roof pitch regimes
Added controls so an installer can only select an uploaded document they own

3.11.0 Released on August 31, 2023

Improvements

AHJ API beta released
Installer API beta released
Enhanced supported tie-ins
Update fee processing to allow individual fees to apply to more than one project type
Added capability to base fees on system horsepower
Clarified module fire rating information and added verification item to the inspection checklist as well as updating the inspection checklist to reference the Fire Bulletin and AHJ specific requirements
Clarified fault current processing when a main panel upgrade is being performed

Fixes

Updated address lookup processing to better differentiate specific addresses being blocked for historical and cultural reasons
Updated tie-in lookup to correctly match tie-ins with associated diagrams
Clarified several entries on the inspection checklist and long form displays
Updated conditions to not allow subpanel feeders at existing subpanels or backup load centers
Updated continuous output current calculations to correctly account for integrated inverter/ESS units

3.10.1 Released on August 8, 2023

Improvements

Added clarification to the inspection checklist concerning authority for fire pathways, venting, and access

Fixes

Corrected issue where valid addresses were not being accepted

3.10.0 Released on July 27, 2023

Improvements

Added ability to block specific addresses for an AHJ to accommodate special district restrictions
Added completed project system and storage totals to the AHJ dashboard
Enhanced microinverter processing to allow multiple modules per microinverter
Allow for 2 two-tier series rated OCPDs to be used in series for fault current compliance

Fixes

Clarified various tool-tip, long form, inspection checklist, and error message displays
Corrected combiner panel processing to accept entry in any order for tie-in checks
Corrected categorization of the Main Lug Only and Solo Main Breaker main service panel type for tie-in checking

3.9.0 Released on July 13, 2023

Improvements

Updated the non-ferrous conduit AFC table with more accurate limits
Clarified various tool-tip, long form, inspection checklist, and error message displays
Added diagram option for the inspection checklist

Fixes

Updated tie-in processing to allow BIPV and BIPV+ST projects to complete
Clarified fee charging and display to avoid confusion and potential double charging
Cleaned up extraneous and erroneous displays on the input form
Cleaned up display and export of project information
Corrected calculation and display of maximum AC operating current on the inspection checklist
Optimized loading of the installer upload page to avoid timing out

3.8.0 Released on June 22, 2023

Improvements

Reorganized busbar input prompts so all information for the same busbar is requested in sequence
Updated wire gauge reference and display for both serial and parallel strings
New logic added to incorporate subpanel feeders with busbars
Enhanced tie-in processing to include more combinations
Added updates to support PCS at subpanel feeders
Cleaned up order of all input and approval document displays to follow a logical sequence
Cleaned up labels for service equipment
Code references clarified on display of Table 23 in the long form
Additional ESS regulations added to the 2020 PV+ST fire bulletin
Logic added to check backup load against backup load capacity
Added Input Flag 44 to warn of potential load calculation discrepancies
Added Input Flag 43 to warn if there is a significant difference between a string inverter OCPD and the inverter output rating
Clarified inspection checklist label for ESS spacing
Clarified labels for assembly of matched DC Coupled Battery components

Fixes

Updated logic to properly show required input fields, such as project valuation, based on AHJ settings
Corrected situation where there was a potential to charge the same fee twice
Corrected fee processing to allow proper calculation of fee caps based intermediate subtotals

3.7.0 Released on May 18, 2023

Improvements

Added transaction fee to SolarApp payment
Cleaned up long form to remove or correct confusing displays
Cleaned up inspection checklist display for split DC strings

Fixes

Updated Installer Project page to correctly filter the project list by AHJ, State, and installer
Updated installer license processing to only allow current validated licenses
Expanded the allowable range of the DC short circuit current (Isc) of the PV Inverter, allow fractional values to be entered, and validate the input does not exceed the maximum input current for the Inverter

3.6.1 Released on April 27, 2023

Fixes

Corrected issue of projects with DC Coupled Batteries not completing properly

3.6.0 Released on April 24, 2023

Improvements

Clarified labels and descriptions for interconnection compliance and other situations
Require installers to upload training certificate prior to completion of on-boarding process
Added capability to specify inverter power limits using a power control system
Added database lookup and expanded capabilities to handle Backup Initiation Devices

Fixes

Updated fees to correctly process calculations based on multi-field input variables
Corrected situation where license uploads did not work
Updated processing of DC Coupled Batteries to reference the correct battery count

3.5.0 Released on April 6, 2023

Improvements

Added roof pitch to the inspection checklist
Added checks for the minimum separation of energy storage units
Added a flag to check for large jumps in OCPD override for ESS output
Added a check for the compatibility of ESS systems of matched components per UL 9540
Added support for DC Coupled Battery installations without a Backup Initiation Device
Added attestations for permitted structures and MPU surge protection
Added verification of conductor sizes for Supply Side Connections
Updated combiner panel flag solution to make it more helpful
Provided capability for AHJs to specify valuation needed for fees

Fixes

Display visibility of bifaciality factor used in calculations in the longform
Patched bug in fire bulletins to reflect the correct code cycle
Cleaned up fee processing to complete quicker and correctly process subpanel fees
Added PCS as an option for subpanel feeders in allowed Tie-in configurations

3.4.0 Released on March 27, 2023

Improvements

Add Power Control Systems as a compliance option for subpanel feeders
Added attestation that closed DC-DC Converter and PV Inverter models work in combination
Added support for bifacial PV modules
Added clarification in eligibility checklist for sizing of branch circuit overcurrent protection device for micro inverters or AC modules
Added ability to report a split service for service feeders
Clarified labels concerning gaps between the module and the roof
Updated inspection checklist and long form labels for clarity
Cleaned up contact references in website footers

Fixes

Cleaned up extraneous display issues in Approval Documents and Job Card
Clarified error messaging for busbar feeder
Deleted misleading vehicle damage display value for inspection checklist
Corrected situation occurring with overlapping jurisdiction addresses
Corrected code references for Rapid Shutdown Compliance
Added compatibility check for combiner panel OCPD

3.3.0 Released on March 2, 2023

Improvements

Added validation of main service panel point of interconnection in systems where point of interconnection is downstream of the main panel
Added additional inverter types to lookup tables
Clarified messaging to installers when license for an AHJ is expired or missing
Simplified power control system data entry and display on approval documents
Added validation and flags to comply with UL requirements for PV systems
Updated the adoption statistics on the SolarApp website
Rounded AC operating current displays to nearest integer for inspection checklist clarification

Fixes

Updated fire bulletin to reference the correct codes in each spec year and display correctly on the preview page
Added precautions to ensure AHJ specific settings were being saved and referenced properly for each code year
Deleted misleading vehicle damage display value for inspection checklist
Corrected busbar OCPD display conditions to only show when applicable
Added precaution to not crash the flag system if a divide by zero error occurs
Corrected calculation of continuous inverter output on generation panels
Corrected fault current calculations for wire length requirements
Added check of busbar ratings against continuous output current for combiner panels

3.2.0 Released on February 9, 2023

Improvements

Updated wire lengths for fault current compliance
Added tool tip to clarify types of busbars to be included on permits
Updated and re-enabled flags to check potential data input issues

Fixes

Corrected display of aluminum wire gauges
Corrected project export issues to make the processing and completion more reliable
Cleaned up permit policy information for onboarding a new AHJ
Corrected issue where AHJ license requirements were being inadvertently changed
Added compatibility check for rapid shutdown compliance

3.1.0 Released on January 23, 2023

Improvements

Add capability to allow AHJs to charge a revision fee if desired
Website updated with a new demonstration video and new partner logos
Added option to provide Main Lug Only busbar processing for select AHJs
Updated Table 1 to include 8AWG criteria and adjusted the processing to reference appropriately

Fixes

Corrected order of input sections to be consistent across spec years
Updated OCPD validation check of busbar ratings
Added OCPD sizes to wire gauge display for branch circuits in Inspection Checklist
Corrected the PCS processing for AHJs using the 2017/2018 spec
Cleaned up fee processing relating to fields being replicated for multiple components

3.0.2 Released on December 29, 2022

Improvements

NEC 2020 and IRC 2021 are now the applicable model codes in California. Major remarks:
- All new projects and revisions for existing projects will now be subject to the new codes.
- Per NEC 705.13, Power control systems are now a code compliance method available for busbars.
- Per NEC 230.71, Main Lug Only panels are not supported, updates pending.
- Per IRC 328, various updates to Energy Storage System allowable location and aggregate capacities (which were already enforced in SolarAPP per the July 1st 2021 Title 24 amendments).
- All code references will be updated.
Electrical permit form updates related to busbars.
Flags have temporarily been turned off.

2.13.1 Released on December 6, 2022

Improvements

Improved delay times for database upload
Improved security of email addresses being used in SolarApp

Fixes

Added/verified units for inspection checklist values
Verified ability to change project type on an existing project if AHJ has more than one project type available

2.12.1 Released on October 18, 2022

Fixes

Resolved a time-out issue preventing some projects with compatibility issues from receiving an error message
Fixed issue in the fault current module that was preventing the inspection checklist generation
Removed misleading responses from approval documents relating to disabled options
Correct approval documents to include fire setback images in fire bulletin for PV and PV+ST projects
Properly handle decimal entries in optional roof framing processing

2.12.0 Released on October 10, 2022

Improvements

Removed City Business license requirements from AHJ onboarding form
Added separate minimum wire size factors for single string versus parallel strings of DC PV circuits
Added detailed fee information and clarified existing information on job card
Added optional ability for AHJ to require detailed roof framing support information
Updated implementation numbers on the SolarApp website

Fixes

Corrected values displaying N/A with actual value
Compensated for manufacturer names containing commas

2.11.0 Released on September 26, 2022

Improvements

Clarified several input prompts and on-screen tool tips.
Clarified wording in several Inspection Checklist entries.
Streamlined project completion process to allow project details to display while PDF documents are being generated in the background.

Fixes

Corrected conditions for display and clarified wording of contractor flags.
Updated calculation to correctly taking into account the energy storage capacity of a second PV inverter with an integrated battery.
Corrected zip code processing in project initialization to accept leading zeros used in the Northeast U.S.
Updated AHJ defaults to only pre-select the most common project types.
Corrected issue preventing proper comparison of inverter and ESS manufacturer names.

2.10.0 Released on September 8, 2022

Improvements

Contractor Input Flags to warn about anomalous inputs
- ESS on PV only project
- Inverter architecture
- Anomalous method of RSD compliance
- Anomalous standoff spacing
- MPU on ineligible AHJ
- Roof coverage
- Corrected anomalous DC/AC ratios
Ability for admin to track flag compliance
Clarification of wire gauge requirements for branch circuits
Clarification updates in eligibility checklist
Clarification of branch circuit OCPD rating

2.9.0 Released on August 25, 2022

Improvements

Updated AHJ onboarding so AHJ can upload their fee schedule
Added option to include an appendix to the fire bulletin for an individual AHJ
Allowed AHJ to specify multiple email addresses for notifications

Fixes

Fault current display corrected
Expanded range of allowable number of THWN-2 conductors in a relocated branch

2.8.0 Released on July 28, 2022

Improvements:

Added new rows to Table 28 expansion
Switched the back end to a new database cluster
Updated prescriptive load calculations for single two pole breaker or multiple one pole breakers
Enhanced SolarApp to support adoption by other AHJ's
Added user confirmation check before editing an approved project
Provided indication in project list if flags are present on project revisions
Added ability to view job card of every revision of a project
Updated eligibility checklist for all types of projects

Fixes:

Corrected ability to view archived projects
Cleaned up project filter options for installer users
Made sure project revisions reflect the correct dates

2.7.0 Released on July 14, 2022

Improvements

Added energy Storage System attestations regarding adequate capacity
Load side tap clarifications, tooltip and language updated for inputs regarding connections directly to a conductor, or using lug terminations in equipment such as an MID in PV+Storage project.
Database clean up
Added features to support new AHJs adoption
Contractor Input Flags to warn about anomalous inputs
- OCPD rating discrepancies
- Anomalous DC/AC ratios
- Anomalous system weight
- Missing combiner panels on Enphase systems
SolarAPP+ Adoption at a Glance Updates
Removed unnecessary feature that allowed to mark projects as "Finalized"

2.6.1 Released on July 5, 2022

Improvements:

Updates to Solar TRACE
On the AHJ dashboard, only show projects that have an approved revision for the AHJ.

Fixes:

Inspection checklist glitch for building integrated photovoltaics pilot
Download uploaded documents button on AHJ project information page is now fetching the correct documents

2.6.0 Released on June 30, 2022

Improvements

Fire Classification Database: SolarAPP will now verify that the system will be installed in compliance with the fire classification requirements of the racking system.

Fixes

Fixed front-end validation of phone format in installer onboarding.

2.5.0 Released on June 20, 2022

Improvements

Code compliance data structure cleaned up
Address validations improved
Clarified language on onboarding forms
Improved error reporting on invalid Stripe accounts
Improved CEC data uploads

Fixes

PCS inspection checklist item fixed
Inverter 2 Model Number value fixed
Updated CEC battery specifications
I298 and I299 visibility fixed

2.4.2 Released on June 7, 2022

Fixes

Permit Fee for stand alone revisions has been fixed

2.4.1 Released on June 2, 2022

Improvements

Website Refresh: cleaned up items and added a bunch of press
Onboarding Form: reworded items and adjusted their order on the Jurisdictions Policies tab to make it a bit clearer to understand
Admin file download for licenses restored

Fixes

The Permit and Inspection Job Card Name for Contractor, now captures the Contractor's name rather than the Contractor's title.
Address validation for AHJs is no longer including uuid's that should be excluded, even if they are not currently serviced by SolarAPP
I302, I125, I282 visibility conditions adjusted

2.4.0 Released on May 19, 2022

Improvements

Enabling additional Admin roles to support ramping for jurisdictional onboarding
A permanent link to this "Release Notes" page has been added to the contractor Projects Page for ease of access
Enabling PCS as a feature for jurisdictions to turn on

Fixes

Export of Revision Approval Documents now include updated inputs
Error message R674 for sub panel inserts now populates where the error was empty previously
Restored Installer jurisdictional search feature

2.3.0 Released on May 5, 2022

Improvements

Made security improvement updates.
Enabled Subpanel Inserts for PV Only in all jurisdictions
Added appropriate specificity around Type distributed generation (DG) cable for conductors installed without a raceway as it pertains to NEC 2017/2020
Added confirmation that the eligible equipment for compliance with ESS fire hazard detection requirements has been confirmed with the jurisdiction.
Updated code references for IRC's R328.4(3) and R328.4(4) appropriately.
Reconciled backend CEC data synchronization after CEC updated their formatting
Incorporated additional validation to ensure DCDC converter products are chosen only for DCDC converter architectures
Improved readability for long individual entries on all pdfs.
Enabled fee absorption option for jurisdiction should the jurisdiction choose to absorb the processing fee
Added Unit Testing for onboarding new jurisdictions
Improved accuracy around the calculations to determine Combined ESS energy capacity
Adjusted the order of a few long form items to be more readable and logical, particularly around confirming you have reviewed SolarAPP eligibility.
Added 3 new tooltips to help the user understand the questions

Fixes

Address validation/assignment issue in Pima/Tucson resolved.

2.2.0 Released on April 21, 2022

Made security improvement updates.
Updated fire bulletin for energy storage projects to include ventilation requirements for ESS products that offgas.
Changed electrical code year verbiage, and wire types, added notes for ESS weight, seismic zones and wiring configurations in the eligibility checklist.
Tooltips, & some note formatting
New verifications for PV inverter input Voc and Isc

2.1.0 Released on April 4, 2022

Modules and racking are now being checked for UL2703 compatibility
Multiple tool tips added and updated to assist users through project submittal.
Clicking next through page navigation now saves the data from that page only, instead of resaving all inputs from previous pages.
Corrected a bug where “Racking Systems” was labeled “Rapid Shutdown”.
Updated the final button in the workers comp overview to clarify the process of previewing the user’s inputs before the payment and submittal process to the AHJ.
Added references to Table 240.6(A) from the NEC.
Added previews of the Fire bulletin and eligibility checklist directly into the project submittal page.

2.0.0 Released on March14, 2022

Site messages displaying based on relevancy to signed in or non signed in users.
Displaying inputs for fire sprinklers and roof area for BIPV and BIPV + Storage projects
Editorial updates to “Racking” section inputs
Create UL2703 grounding and bonding database
Fixed referrer tagging in links that take users out of SolarAPP+ (YouTube, Help Scout)
Updated NGINX
Improved the framework for stress testing the system
Fixed a glitch removing a small risk of AHJ settings being deleted.
Added documentation to Github on development spec interpretation.
Added inputs and logic to enable ESS projects to be compliant with 2021 IRC and July 1st amendments to California Fire Code
Update to CEC documentation and compliance checks for ESS projects
Improved reliability of test servers when projects are queued
Corrected display of fire requirements for BIPV depending on code years
Accela API integrations for approval ID and inspection card
PHP version updated to v7.4
Improvements to submission process and server calculation logic to reduce the risk of DOS on the server

1.9.0 Released on February 15, 2022

Improvements

Added seismic design category question to jurisdiction onboarding forms
Changed language on application question on system height from the rooftop: "What is the maximum distance from the module backsheet to the rooftop?"
New eligibility checklist item added: projects must be installed on permitted structures.
Added public website links to download the SolarAPP+ Fire Bulletin
Incorporate page breaks in Fire Bulletin to improve legibility
Upgraded to Laravel version 6
For AHJs using the standalone method, enabled the option for AHJs to choose to absorb Stripe processing fees in the onboarding forms
Added Fee Field List as a reporting option for administrators to better manage AHJ fee structure
Server maintenance times now displayed on banner located on SolarAPP+ home page
Under the application section "New Panelboard for Relocated Loads," removed exception for wire sizing derates
Updated various code references, including revised code citations for roof mounting planes, roof covering material, roof fire classification, roof pitch, and ground snow load.
Corrected and updated labels on load calculations for the main service panel and new subpanels
Revised language on inspection checklist items related to array conductors and rapid shutdown devices
Enhanced Main Panel Upgrade Fees for Stand Alone AHJs
Added ToolTips to provide additional guidance on questions related to utility service feed rating
Added link to CEC Solar Equipment list in ToolTip for energy storage equipment
Added inspection checklist item: "Disconnecting means for supply side equipment is marked as 'suitable for use as service equipment'"
Updated logic for calculations related to PV combiner panel, wire count
Added inspection checklist item for DC-DC converters
Updated logic surrounding point of interconnection inspection items
Input data files created for testing FC RIDs, PV+ST and BIPV+ST with ACM inverter, Microinverters, and/or DC-DC inverters.

Fixes

Adjusted windspeed input by replacing non-standard AHJ override with a string interpolation and a standard AHJ override
Installers now required to enter phone number in registration forms
Added test to accurately show that the installer has been fully onboarded
Various system fixes to accommodate building-integrated photovoltaics (BIPV)
Language edits to ToolTips

1.8.0 Released on January 26, 2022

Improvements

Built in support for NEC 2020 and IRC 2021 code cycles.
Arc-Fault Circuit Interrupter (AFCI) logic improved, and the inspection checklist question, "Where relocated loads are extended greater than 6 feet, then AFCI breakers are installed according to Article 210," will now always show when installing a new subpanel.
On jurisdictions that enforce the 2020 NEC, Power Conditioning System (PCS) tie-ins are now available at the Main Service Panel, Existing Subpanels or New Subpanels.
Modifications were implementation to the interconnection section in the inspection checklist and long form for greater flexibility in checking compliance with all eligible Code Cycles (2017/2018 and 2020/2021). In addition, Power Conditioning System (PCS) was added as a new method of interconnection.
Modified "Interconnection at Main Service Panel" of the inspection checklist. The Center-Fed 120% rule and End-Fed 120% rule options were merged into one rule to avoid discrepancies with the approval documents and the installation.
Code references were improved to enable the software to accurately reference 2017/2018 vs 2020/2021 code cycle references, depending on the jurisdiction's eligibility settings.
File upload locations were modified by tagging uploaded documents with unique identifiers in the SolarAPP+ database, improving system robustness.
Added functionality for displaying contractor helper text (tool tips) adjacent to more complicated input questions was implemented in the application forms.
All code references were removed from input dropdowns. References can now be found in the helper texts (tool tips).
Various compliance checks for NEC 2020 requirements for solar-plus-storage projects were built into the system.
The NEC and IRC/IBC code cycle will now be included in the long form under the section "General" - "Project Information".
Specific minimum service size checks will now be performed for Main Lug Only Panels, only allowable under NEC 2017.
The Fire Bulletin is now a PDF that is instantly generated for each project based on the jurisdiction's account settings.
The homeowner name is now required as an input on the first page of the application form.
Support for multiple code cycles now enabled for all jurisdictions, e.g., to allow for selection of NEC 2017 or NEC 2020.
Various language improvements to application forms and approval documents, addressing feedback from regulatory officials.
Installer upload documents can now be downloaded individually by system admin to improve customer support.
Published SolarAPP+ Adoption at a Glance page.
Published updates to SolarAPP+ Press Page.
All links in the application form will now open a separate tab in the browser.
Provisions from the California Title 24 amendments adopted July 1, 2021, were moved from the Fire Bulletin into the project application forms.

Fixes

Fixed multiple misspellings
"A Main Panel Upgrade is being performed" long form output will no longer display "N/A", only "Yes" or "No" when applicable
Inspection checklist issue fixed by removing unnecessary display of the following question: "Maximum number of THWN-2 conductors in the raceway with the wire being used to reduce the AFC to less than 10kA, excluding any equipment grounding conductors."
Inspection checklist item moved from the "Installation Details" to "General Guidelines": "Conduit sizing to be confirmed at time of inspection. Contractor to provide conduit fill calculations where requested by inspector"
Demo environment fix: Bug with duplicate approval documents and approval IDs resolved.
Moved the question "Are the ESS model 1 and PV Inverter certified as a single unit with no field wiring between the battery components and the inverter components? (Note: Only up to two PV string inverters are supported)" after "Upload datasheet for ESS model 1" to improve permit application flow.

1.7.0 Released on December 13, 2021

Improvements

Added General Guidelines section at the top of the inspection checklist to clarify that equipment must follow instructions in manufacturers' documentation, wire size values are a minimum and may be upsized, and installed OCPD ratings must exactly match those on the inspection checklist.
The calculated sum of 125% of the continuous output current from the generation sources will now be rounded to the nearest integer, allowing the platform to accommodate provisions of the NEC that allow for rounding of half amperes in calculations.
Selection of NM Wire is now restricted to AC Modules and Microinverters.
Added structural checks for energy storage system (ESS) mounting equipment to align with ASCE-7-16 13.1.4.
Projects may now utilize multiple DC coupled battery models, expanding SolarAPP+'s eligibility and allowing for greater flexibility.
Expansion of allowable backup initiation Devices by enabling support for internal, external, and meter-mounted microgrid interconnect devices (MID) and automatic transfer switch (ATS) technologies.
Added support for multiple ESS Models on a single permit application.
Added support for supply side connections using a main lug-only panel.
Inspection checklist and long form language improved for readability and polish.
Local Settings and Integration Method jurisdiction onboarding forms improved to allow for easier configuration and set up.
Existing and New Subpanel projects updated to allow for the use of an existing subpanel tie-in along with a new subpanel in projects. For example, contractors can now use a main panel insert.
Created new optional input of project valuation to meet local jurisdictions' requirements.
Added microinverter rating as an eligibility requirement in the eligibility checklist: "Whenever used, microinverters or AC Modules must be rated for a 20A branch circuit overcurrent device," and removed the attestation from the application forms.
Clarification on combiner panel OCPD question in the application form: "What will be the Overcurrent Protection Device rating of the PV inverter only combiner panel output?" Moved the question to the "Equipment - Inverter" input section.

Fixes

Installer Dashboard function to filter by jurisdictions improved
Added a "cancel" button to the Edit Fees page for jurisdictions
Removed logic that would cause the "sum of breaker" rule to return a compatibility error on certain edge cases
Installers directed toward links to the input training instead of licensing menu if onboarding is incomplete
Fixed compatibility check bug with code compliance checkbox attestation in "Installation Applicability and Compliance" section

1.6.0 Released on October 28, 2021

Improvements

Modules/DC-Series String: adjusted acceptable range for maximum quantity of modules in a DC series string. Modified compatibility conditions for longest DC string: 30 for DC-DC converters and 17 for MCIs.

Jurisdiction Dashboard

Added function on jurisdiction project dashboard to export a CSV file of all submitted projects
Project dashboard can now be filtered by installer and project type
Consolidated local settings, integration method, and address validation into single Configuration page
Reorganized dropdown menus to improve navigation
Standardized template on dashboard pages
Added display that summarizes the following data: breakdown of project types, number of installers, number of approved projects, and number of revisions

Installer Dashboard

Added function on installer project dashboard to export a CSV file of all submitted projects
Project dashboard can be filtered by jurisdiction, state, project owner, and date range
Improved ability to edit installer profile page
Reorganized dropdown menus to improve navigation
Installers can now view jurisdictions in their defined territory, view the status of their license (e.g., expired, verified, pending verification), and add/edit licenses on the 'Jurisdictions' page in their account
Included option to add a new territory under the installer's active jurisdictions
Enabled installers to edit uploaded licenses (changes status to "pending validation")
Added required training (How to Use SolarAPP+ For Rooftop Solar Projects) to onboarding pages

Fixes

Added message to indicate server timeout during UUID verification

1.5.1 Released on October 19, 2021

Fixes

Updated Fire Bulletin (Less Than/Greater Than)

1.5.0 Released on October 14, 2021

Improvements

Order of equipment inputs refined; contractors now enter (1) architecture type, (2) manufacturer, (2) model, and (4) data sheet.
Table calculation error messages improved for clarity
Product Piloting Functionality, allowing AHJs to enable/disable contractors for piloting project types (e.g., for limiting PV+ST submissions)
Added new functionality to change project type, e.g. from PV to PV+ST

Released on October 6, 2021

Improvements

Approval uploads dashboard (My Uploads) enabled for contractors under the account dropdown menu.
New language for input questions: combined strings in parallel.
Optimizer and Mid Circuit Interrupter (MCI) revamp to expand equipment databases for improved code compliance verification.
- Internal Optimizer database.
- Internal MCI database.
Ancillary Equipment attestation to ensure all equipment is rated equal to or greater than the connected overcurrent device and installed per the manufacturer’s instructions.
PV inverter and ESS voltage and short circuit current must now be displayed in labels on site, now added to the inspection checklist.
Equipment Rating options for Load Side Tap and Supply Side Connection expanded in equipment dropdown lists.
Current carrying conductor questions language improvements.
Improved order of inputs regarding electrical equipment.
Inverter architecture is now part of the inspection checklist.
Workers' comp upload feature enabled for AHJs that require it.
Enhanced platform support for inputs that can have a varying number of answers, e.g. structural mounting planes.
Miscellaneous language improvements.
New AHJ UUID validation: data to validate property addresses improved to ensure AHJs have a unique UUID.

Released on August 19, 2021

Improvements

Current Carrying Conductors: improved language for clarity around several inputs under circuit requirements. Installers are asked to specify the number of conductors in a raceway from the array to the inverter, excluding equipment grounding conductors.
Microinverters Custom OCPD: Installers now have the option to enter custom overcurrent protection device ratings for combined inverter outputs.
Wire Sizing for Microinverters Custom OCPD: updated calculations to reflect accurate wire sizing for the combined output of custom microinverter overcurrent protection devices.
Improved labels for the generation panel by adding long form table references to increase flexibility for overcurrent protection devices.
Added links to more easily access the SolarAPP+ Help Center on the home page.

Released on August 5, 2021

Improvements

Energy Storage Equipment expanded to support for DC Coupled Batteries with a Hybrid Inverter. SolarAPP now includes storage systems battery equipment listed in the California Energy Commission database.
Load Side Taps Enabled: Added new section to electrical page, 'Point of Connection at Subpanel Feeders,' allowing contractors to select equipment and compliance methods for interconnection at subpanel feeders.
Energy Storage System (ESS)-only Combiner Panel: For PV + storage projects, contractors may indicate whether they are combining inverter outputs in an ESS-only combiner panel with no loads. If 'Yes,' Contractors must specify busbar size.
Standardized breaker and bus sizes: changed input fields to dropdown menus for various items to ease the inputting of information and reduce user error. Among other aspects, contractors may now select from a range of values for OCPD ratings and busbar ratings for new subpanels with relocated loads
Improved and updated error messages for clarity when contractors input ineligible specifications.
Generation Sources Combiner Custom OCPD: Added new section for projects with ESS inverter outputs that are combined in dedicated generation sources panel with no loads. OCPD devices must match or exceed checklist/long form minimum.
Minimum DC Wire Sizes: Contractors are allowed to enter wire sizes that match or exceed the minimum on the inspection checklist.
"Roof" section on inspection checklist changed to "Roof and PV Array"
Supply Side Connections: "Point of Connection at Service Feeders" section created for project questions related to supply-side connections, and "Supply Side Connection" section created in the long form.
Questions on minimum DC wire size for microinverters under "PV Source Circuit" section made visible only if the contractor selects "No" for the question, "Is 1 Microinverter used per module?"
Added "Signup for Newsletter" opt-in to profile page.

Fixes

Corrections to system infrastructure: input order for equipment, backfeed calculations, equipment options for energy storage, etc.
Visibility of point of interconnection question - "Will all power production outputs have the same point of connection?" - made conditional on whether the project involves multiple inverters or AC mods inverter architecture.
Clarified the calculations displayed in long form items: microinverter branch continuous output current and AC module branch continuous output current

Released on July 1, 2021

Improvements

California Interim Code Update: included relevant code updates to the Fire Bulletin so SolarAPP+ can support CA jurisdictions

Released on June 29, 2021

Improvements

Installer onboarding revamp: added field for contractors to input licensing information, ability for contractors to add contact information, etc.
Enable contractors to enter custom OCPD sizes for string inverters if OCPD meets or exceeds SolarAPP+'s calculated minimum.
Fixed bug that undersized allowable branch circuits of microinverter/AC module by changing to calculation of backfeed calculated from continuous current instead of OCPD sum.
Incorporated main panel upgrades (with associated fees) and main breaker derates as eligible system add-ons.
Conduit fill calculation removed, allowing greater flexibility for inspectors in the field checking wire size.
Implemented new demo server, allowing AHJs to test pilot projects in SolarAPP+.

Released on June 8, 2021

Improvements

Standardized overcurrent protection device and bus sizes – added dropdown menus for each field in project forms to ease equipment selection.
Added new fields in application form and inspection checklist for projects using Energy Storage System (ESS) only combiner panels.
Load side taps and supply side connections: Compliance checks and inspection checklist items for load side taps
Load side taps and supply side connections: included supply side connection category in project inputs and long form
DC coupled energy storage: included support equipment from battery list from California Energy Commission (CEC)

Released on May 25, 2021

Fixes

Stripe payment for AHJs resolved
Inspection forms: overcurrent protection calculations
Structural: inputs for mounting planes, flush mounts, roofing material additions
Inspection forms: overcurrent protection calculations
Structural: inputs for mounting planes, flush mounts, roofing material, etc.'

Improvements

Self-onboarding dashboard for AHJs; integration with existing permitting software
Updated equipment in CEC database
Questions expanded to include new details regarding main panel upgrade, main breakers, main service panels in project application forms, inspection checklist, approval documents

Released on May 11, 2021

Fixes

Compliance checks for supply side connections

Improvements

Website redesign to improve navigation and dashboard user interface
Added input fields for main panel upgrades into project submission forms and inspection checklist.

Released on April 28, 2021

Fixes

Interconnection method for subpanels: Main Panel’s Compliance Tie-in Method Check override resolved
"0" now valid input for maximum number of DC current carrying THWN-2 conductors in raceway
DC Wire sizing on string inverters with DC-DC Converters using parallel strings, valid input revisions
Longform output (R242), the displayed sum of overprotection current now equals the displayed sum of sized backfeed breakers
Value displayed for the maximum number of DC current carrying conductors in raceway for AC module architectures revised
Scroll when editing in input boxes resolved
Display error resolved: “What is the subpanel overcurrent protection (breaker) Amp rating?”

Improvements

New and revised questions on project forms for PV+ST project application, microinverter, OCPD combined inverter in inspection checklist
Expanded the roofing material list to cover all the roofing materials listed in Chapter 9 of the IRC, including elastomeric roofing.
Application status updates: Can 'Edit' an approved application to 'Draft' status.
72" maximum spacing between standoffs to address absence of point of load limitation
Upsizing for breakers for inverter continuous output currents that are on the limit of current thresholds to incorporate NEC 220.5 (B)
Minimum working clearance requirement in the inspection checklist refers to NEC 110.26
Revised project inputs to allow PV wires to be sized without a raceway