How to Use This Guide
This guide is organized into main sections (A - E), each containing several numbered sub-sections. You can find these sections in the right-hand menu to quickly access the information you need.
Guide Structure:
Main Sections (A - E): These divide the installation process into broad categories.
Numbered Sub-sections: Within each section, there are specific topics with numbering to facilitate identification.
Image Viewing
In each section, where applicable, you will find a tab with the option "Click to view images." Use this feature to see graphical examples that complement the documentation.
If you are unsure where to find something, use the right-hand menu to quickly locate relevant information.
Links
Downloadable versions of this article, including and excluding photos, are here for ease of access to reference this information in the field:
Take advantage of Palmetto LightReach SiteCapture Integration with the Palmetto JCO integrated template for ease of submission. See our Knowledge Base article here on SiteCapture: SiteCapture Integration
Category | Sub-section |
[PS] Project Site |
|
[R] Roof Work |
|
[E] Electrical |
|
[ES] Energy Storage |
|
[PC] Project Completion |
|
General & Best Practices
Please reference the Solar Energy Plan: Eligible Sites Article for further information on allowable Homes, Structures, and eligible electrical equipment before installation.
Please take pictures only after the work has been completed. Pictures taken while the wiring has not been completed can cause confusion and delays in the review process.
When taking photos it is recommended to take a close up and a clear pullback
Items labeled as BEST PRACTICE support the confirmation of a job well done, but will not be a rejectable item if missing
M1 requirements are geared toward ensuring key principles of system production, safety, and customer experience.
PS) Project Site Photos
Site Information
Site Information
PS1) Identification of the Home and Structure Style
Photos of the front of the Home and Address, identifying that the permitted design matches the physical structure
IF Identified as an Accessory Structure - Section D of the above article
Interior photos capturing the construction (rafters, purlins, etc), dimensions, and spacing.
Photos of the vertical supports indicating the construction upon a permanent foundation.
See the Structural details of the Eligible Sites Knowledge Base article for more information for Accessory Structure requirements
Site Conditions
Site Conditions
PS2) Pre-Existing Site Damage or Condition
Any pre-existing damage or conditions should also be documented and corrected, such as broken vent boot flashing, chimney cracks or leaks, altered satellite dishes, gutters, torn or missing shingles, shingle cap damage, and generally anything that could potentially be a workmanship liability in the project work area.
During the Quality Review, issues identified as impacting the Solar Installation without clear proof of correction will result in a rejection until proof of correction is provided. It is the responsibility of the EPC to ensure the condition of the site and structure meet Palmetto Quality requirements.
PS3) Existing Code Violations or Outdated Equipment
It is the responsibility of all parties to make all reasonable efforts to ensure the home is solar ready (meaning all existing electrical equipment between the inverter output and the utility is suitable for connection and operation of the new system).
This includes PV installed on mounting planes with incorrect roofing material use, such as low slope shingle roofs or higher slopes with flat roof material.
Outdated Equipment as described in Section E in the Solar Energy Plan: Eligible Sites Article should be replaced Prior to system commissioning and captured in Photo Deliverables.
Please reference Multiple System Parameters Section F in the Solar Energy Plan: Eligible Sites Article
Component Identification
Component Identification
PS4) Module Label & Serial Number
A photo of the Module Label used onsite - The photograph must be clear and legible; images that are illegible may be deemed insufficient and could necessitate a request for enhanced clarity, leading to M1 Rejection and funding delays.
NOTE - Some labels are difficult to capture, you should never remove or alter a label in any way.
A photo of the unique Module Serial Number used onsite - this photo should be clear and legible. Any images unable to clearly read the module serial may result in request for image to be re-taken. No “stock” or warehouse images are allowed. Module serial number cannot be a duplicate of another PV system.
PS5) Inverter(s) -or- Microinverters -or- Optimizers Label
A clear photo identifying the model of the inverter/micro inverter/AC module/optimizer used on site.
For sites with Multiple Inverter models, multiple photos will be required
These components should match exactly the information provided in the System Details & Site Qualification section of the account page.
Micro inverters inter-compatibility is very limited, but certain models will have capacity. Always ensure OEM guidance allows for usage before installation of any multi-model configuration.
PS6) Auxiliary Equipment Label with Serial Number.
Mandatory for incentive states (irrespective of monitoring portal access).
All Combiners Used on site irrespective of Brand.
Q.Home, IQ Combiner, Smart Combiner, Etc.
Clearly legible serial numbers for inverter & DC safety switch (SolarEdge/other)
Enphase Stand Alone Envoy - If more than 4 branch circuits exist & a dedicated sub panel is being used.
PS7) Rooftop Stringing Diagram
For Tesla inverters, a picture of the MCI installed and a string map with MCI location is required.
Please note that Tesla recommends MCI Diode testing prior to installation.
For Generac PWRMicro Inverters, a diagram with the number of microinverters mounted on each array, along with a stinging diagram outlining the number of PWRMicros per string.
Please note stringing size determines OCPD sizing in the combiner. See sizing table here.
PS8) Microinverter -or - Optimizer map
This best practice will enable better levels of troubleshooting for the Service Team
PS9) Domestic Content Verification Photos
Please reference Solar Energy Plan: Domestic Content (M1) Submittal & Photo Requirements for Component Identification photo requirements. in addition to the above
Mounting Hardware - Rail
Mounting Hardware - Fasteners - Clamp
Mounting Hardware - Fastener - MLPE
Mounting Hardware - Fastener - Splice
There are many domestic content parts and the offering is subject to change. When in doubt, take numerous closeup photos of racking parts and packaging
R) Roof / Mounting System Photos
Click for Rooftop in Progress
Click for Rooftop in Progress
R1) Close up of Attachments - Flashing & Sealant
Racking Systems without Flashing - Photos should highlight properly applied Sealant within or around the attachment
Racking Systems with Flashing - Provide photos showing properly installed flashing to manufacturer specs, along with sealant application
Attachments should adhere to manufacturer installation guidelines
While attachments are not represented on the ITC Eligibility Calculator, only attachments by approved vendors are eligible for funding.
See the AVL Knowledge Base Article regarding attachments for details
For Metal Roofs ensure that attachments are certified for that application.
R2) Rooftop Equipment - Rail, Auxiliary equipment, and EGC are Installed
Provide a pullback of each mounting plane and array where all attachments, rails, wire, Module Level Power Electronics (MLPE), and EGC have been installed.
Wires should be secured with permanent, outdoor rated & UV-resistant clips or cable ties, installed on rail or directly to the modules. Wire management should be accessible for any necessary service.
All attachments, rail, and auxiliary equipment are installed correctly
For module frame mounted MLPE; provide a photo of the device mounted prior to the panel being placed on the array.
Ensure to follow manufacturer installation guidelines for both auxiliary equipment and MLPE
R3) Equipment Grounding Conductor (EGC) Path: Include the route of grounding copper between the rails on the roof for each array installed.
This can include documentation of module to module grounding to affirm all rows of PV grounded
Click for Finished Arrays
Click for Finished Arrays
R4) Completed photo for each Array
One completed photo of each array with all modules visible + Rail trimmed
All modules must be visible and countable
With low pitch roofs, or very tall homes, take photos of each array from the roof, accounting for every panel
Rail must be trimmed
R5) Tilt - Measured on Array
One photo per unique roof pitch. Include multiple photos for mixed pitch / mixed surface roofs
Photo measurements of the tilt should be clearly legible. Tilt must be taken on the module itself, rather than the roof surface.
Array Tilt must be between 5 and 45 degrees and match the provided design documents.
Screenshots from tilt smartphone apps are acceptable only if it shows context of the array being measured. Screenshots of tilt from a phone app in itself--without the context of the array being measured--are not acceptable.
IF the TILT in question is close to a PITCH violation (Shingles below 2/12 or 9.46 degrees; low pitch roofing material like rolled comp above 3/12 or 14 degrees or ) it is recommended to provide a PITCH Measurement on the roof surface to prevent rejections.
R6) Rooftop Wiring & Management per Array
Each array should have one photo that displays properly managed wires with at least one Module Level Power Electronic device.
Wires should not touch the roof surface for each array. Wire and bundles should be secured, and above the surface to prevent damage
Wires should be secured with permanent, outdoor rated & UV-resistant clips or cable ties, installed on rail or directly to the modules. Wire management should be accessible for any necessary service.
Do not wrap the conductors around the rail as a method of wire management. This will be very difficult to service and could result in damage to conductors.
Click for Rooftop Electrical
Click for Rooftop Electrical
R7) Junction, Pull, and Outlet Boxes
Photo of open junction box with completed wiring and bonding. Include closeup of the conductor terminated, or the transition through conduit
Junction Boxes mounted to the roof must be rated for the intended application and installed per the manufacturer instructions.
1 Photo for each junction box
J box should not have any more than 2" of exposed conductors outside of the array. Any exposed conductor over 2" will have to be installed in a conduit
Roof-top junction box should have a small weep hole at the lowest point to prevent water accumulation.
Plastic roof-top junction boxes should utilize side and bottom conduit entry points to avoid water intrusion.
Junction boxes must have push-in or crimp connectors, or DIN rail termination blocks for connectors.
R8) Conduit Path, Supports and Penetrations
(BEST PRACTICES - see also Electrical section E6)
Take pictures of the conduit path of travel from the array including the method for exiting the roof.
Stub out flashings and conduit exit practices should follow industry best practices.
Conduit should adhere to the standard application practices and requirements per NEC Code.
All Conduit supports should follow manufacturer guidelines.
Click for Alternate Mounting Systems
Click for Alternate Mounting Systems
R9) Ballasted System
Ballast blocks installed on site must match ballast schedule
Please provide verification of ballast block composition and weight - a receipt from the yard where they were purchased OR an invoice if drop shipped or delivered to a warehouse
If installation deviates from manufacturer recommendations, such as AHJ restrictions, please include context on the engineering plans. Blocks and weight should be identified on plan sets.
Stamped engineering plans / letters should include wind/snow structural load calculations, embedment depths and/or footing dimensions and match installed racking structure.
E) Electrical Photos
Click for Standard Requirements
Click for Standard Requirements
E1) Inverter(s) -or - Microinverter Combiner Wiring (Captures Production CTs)
If Enphase - Interior photos of IQ Combiner box showing complete AC wiring, including the breakers from the branch circuits and CT terminations.
Ensure wiring diagram is followed on door of combiner and the correct phase for each string is ran through production CT
If Enphase stand-alone Gateway Envoy is installed, please ensure it is installed in non-metallic NEMA Type 3R enclosure, with side or bottom conduit entry points, and production CT is not extended to allow for RGM data readings.
If QCells - Interior photos of Q.Home Combiner box showing complete AC wiring, including the breakers from the branch circuits and CT terminations. see QCells KB Article.
Ensure wiring diagram is followed on door of combiner and the correct phase for each string is ran through production CT, center breaker position PV2
If SolarEdge - Photos of SolarEdge lower cabinet wiring showing RGM meter, DC strings terminated, AC feeders heading to service, comm wiring and battery feeders terminated (if needed).
Upper Cabinets as needed to document installed Cell Kits.
Side of inverter for Inverter Label
If Tesla - Photo of open Inverter wiring showing DC strings from roof terminated with clear count of total strings, AC feeders running to home service, RGM meter installed and capturing AC feeder, grounding shown completed.
For Powerwalls, please ensure ferrite core installation and drain wire termination are shown installed to manufacturer guidelines
If Generac - Photos of Generac cabinet wiring showing complete AC wiring, including the breakers from the branch circuits and CT terminations.
Control Cable & Drain Wire terminations aligned to the proper color coding.
E2) Point of Interconnection
Pull back photos capturing the entire panel providing context of a properly wired system meeting all code requirements.
Close up photos of parallel lugs, distribution blocks, breakers, and wire terminations. Ensure that the products are rated for use and installed following manufacturers standards.
E3) Main Breaker
Close up of main breaker with rating clearly visible
The PV system AC output overcurrent device is properly sized and installed in accordance with NEC and/or manufacturers recommendations.
For PV systems that feed a panelboard, PV system overcurrent protection installed in the correct location within the panelboard.
E4) Main Panel Busbar
Main Service Panel label/sticker with rating clearly visible
Outdated Equipment as described in Section E in the Solar Energy Plan: Eligible Sites Article should be replaced Prior to system commissioning.
When a busbar rating is not available, such as an illegible sticker from age, a letter of confirmation from the Electrician/electrical officer attesting the busbar rating will be required.
E5) Pull back of Balance of System
Photo(s) showing the complete BOS equipment installed
Ideal photos are pullback photos showing full context of the BOS area.
Equipment in the installation area should abide by NEC code requirements for positioning and clearances.
E6) Conduit and Raceways
The conduit and raceways installed on site are shown in photos, including the trough grounding and weep hole placement.
Where conduit is installed it is BONDED, rated for use (size, rating, and type), properly mounted/supported per NEC Code requirements, and sealed when transitioning to conditioned space.
(Enphase ONLY) To address Crosstalk talk - Multiple Enphase systems on the same service require 1 meter (3.3 ft) of separation for all conduits to combiners. Palmetto LightReach systems ALWAYS require a Powerline filter for multiple Enphase systems.
E7) Consumption Metering (CTs)
Consumption Meter: All projects require consumption monitoring equipment installed to manufacturer specifications
CTs on service feeders, with direction of CTs visible
If service feeders are unable to be captured, branch circuiting can be used to capture home load feeders, ensuring the correct phasing is passed through the correct CTs
CT placement and orientation instructions vary per manufacturer. Always install CTs following OEM guidance.
Interconnection utilizing ConnectDER (or similar) requires pre-planning for CT installation, please ensure CTs are properly installed for all Palmetto Energy Plan Projects.
If CTs are physically unable to be installed, please include photo context holding up the physical CT as a reference to show the situation (e.g. busbars in meter/main panels where CTs physically cannot be placed, or split service setups where whole home consumption is not possible. These situations are not common)
Click for If Applicable Requirements
Click for If Applicable Requirements
E8) Alternate Interconnection Methods - Load or Line Side Taps
Insulated piercing connectors (IPCS) are required to meet manufacturers specifications EXACTLY - wire sizing, wire type, torque values, tap placement, etc.
Photos should clearly identify that the installation meets all manufacturer standards.
(If applicable) When using Hoffman or load side taps, a picture of downstream sub panel with OCPD rating clearly visible is requested
E9) Alternate Interconnection Methods - Meter Collar Adaptor
Please show OCPD utilized with Meter Collar Adaptor, along with any wire terminations to collar on either end of installation
If meter collar installation requires utility coordination for installation, show all pending items and work in its incomplete form.
E10) Switches, Disconnects, and Disconnecting Means
Interior photos of all equipment installed with the Energy Distribution or Storage system showing the completed wiring, including terminations and bonding
If using Fused Disconnects, capture clear photos of Fuse rating and labels.
Ensure grounding and neutral bonding is correct based on interconnection. Please ensure grounds and neutrals are only bonded together at first means of interconnection to service disconnect (NEC Article 250)
This can include any site isolating devices such as Tesla Backup Switch or Enphase Gen 4 Meter Collar to create micro grid and backup configurations
ES) Energy Storage Photos
Click for Standard Requirements
Click for Standard Requirements
ES1) Battery Label & Serial Number
Picture of the manufacturer label
Serial should be clear and legible for confirmation of battery series and any qualification, such as Domestic Content, FEOC, or Safe Harbor Material
ES2) Battery Wiring and Cabinet Details
General Requirements -
All battery AC feeder terminations should be clearly identifiable
Battery comms cable terminations and installation must be per manufacturer specifications
Photos must clearly show both cable ends terminated (in every component), ensuring the drain wire is landed on one end only of each run of comm cable
If Enphase - Ensure AC feeders and comm cable/drain wire terminations are shown clearly for both 5P and 10C installations. CTRL-SC3-NA-01 cable is the only comm cable permitted for use for Enphase battery installation.
If Solar Edge - Ensure that the internal wiring connection into the Stäubli MC4 Connector meets all Stäubli AND SolarEdge standards.
If Tesla - Additional details such as Ferrite core in Tesla Powerwall 3 will also need to be shown correctly following manufacturer guidelines.
If Generac - Terminations, control cables, and resistor placement should match the installation diagrams as indicated in the training material.
ES3) Battery Current Transformers
If Enphase - All Enphase battery 5P Battery installs require battery CT equipment installed to manufacturer specifications on Line 2 feeders
Photos should show the CT location and direction.
Follow manufacturer best practices in regards to CT length and possible splicing techniques.
ES4) Pull back of Balance of System
Photo(s) showing the full context of battery install location in relation to the BOS equipment
Pull back of install location with cover off showing compliance with manufacturer specifications
Batteries in right of way traffic areas may require the installation of bollards for protection.
Batteries should avoid being installed in full and direct sun exposure, such as southern facing walls with no shading
Crucial to avoid overheating and possible pre-mature failure of equipment
Click for If Applicable Requirements
Click for If Applicable Requirements
ES5) Site Controller Label and Wiring
Also known as a Gateway -or- System Controller -or- Transfer Switch
Picture of the manufacturer label and internal components. Photos should show serial, make & model and any breakers with ratings.
ES6) Sub Panels or Load Center
Combiner panels for large systems requiring multiple inverters, IQ Combiner boxes, or large sub panels for branch circuits: each sub panel should be shown fully wired, with legible closeups of breaker ratings, and the panel’s bus rating label
(PC) Project Completion Photos
Click for System Commissioning
Click for System Commissioning
As a reminder, ALL Palmetto Energy Plan projects are required to have integrated Cellular Connectivity that is confirmed at the M2 Activation Milestone. This can be utilized as the main or backup connection, but must be registered and reporting for all PLR sites.
SC1) Tesla System Commissioning
Commissioning of the system should be completed prior to leaving the site. System should be fully operational with all devices paired, active communication, reporting production and consumption data including cellular connection signal
If Main service upgrade or further work is pending, commissioning for the system will need to be shown completed with the finalized site work for M2
Tesla screenshots should show 'Palmetto LightReach' added as partner, inverter & CTs enabled, networking connected to Cellular and MPPT readouts. Include operations settings page for panel current limit & PCS settings
SC2) SolarEdge System Commissioning
NEEDED when using Power Control Setting for MPU avoidance.
Screenshots should clearly identify PCS settings and 20% minimum backup reserve
SC3) Other OEM System Commissioning - Best Practice
While commissioning photos from other manufacturers are not a required deliverable, photos of the commissioning steps can provide helpful context of system performance and serve to prevent possible rejections.
SC4) Generac System Commissioning
EcoBee required when installing the backup system (SDS)
Click for Site Improvement/Adders
Click for Site Improvement/Adders
This selection of photos may be captured and submitted at the M1 Installation Milestone, but if not completed will defer to the M2 Activation Milestone.
SI1) Main Panel Upgrade or Electrical Adder
Photos are provided at Activation (M2) submission.
Additional Electrical Adder work must abide by requirements in Electrical Conditions & Adders Knowledge Base article or adder work will not be considered satisfied
If adder work is not meeting requirements, a change order may be requested to remove the electrical adder
SI2) Trenching
Document any needed trench work performed. Trench depth must adhere to NEC 300.5.
SI3) Tree Removal
Palmetto Lightreach standards mandate that Tree Removal in the design process consists of the removal of the entire tree as trimming does not suffice.
For ease of project review please identify with photos and planset identification where the removal is planned.
SI4) Specific Incentive Required Photos (All incentive states)
Most incentive market requirements are unique, please reference the articles for necessary items in each market























































































































