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BOM Generator

PWRmicro + PWRcell 2 | PJVolta

⚡ Quick Quote

Get a fast price estimate in seconds. Perfect for phone calls with dealers.

Step 1 — Project & Solar Configuration
1

Project Info

2

Panel Specs

3

Array & Cables

System Preview
Configure your system above to see preview
4

Acomodo del techo (Array)

Filas sencillas con pasillo entre filas (práctica PR). Cada micro queda entre sus dos placas; el trunk se escoge por el alcance micro a micro.
Step 2 — Battery Configuration

Choose Your Battery Configuration

✓
GRID-TIED
No Battery
Solar only, grid-tied
$0.00
PWRmicro solar only
No battery storage
Grid-tied operation
✓
CURRENT
Keep Existing Battery
No existing battery selected
$0.00
Solar equipment only
PWRmicro is AC-coupled
Works with any existing battery
No additional battery cost
✓
UPGRADE
Add PWRcell 2 System
11.5 kW Inverter + Battery + SDS
$0.00
Full Generac battery system
PWRcell 2 Inverter: 11.5 kW / 236 LRA
Smart Disconnect Switch included
Whole-home backup capable
✓
OTRA MARCA
Batería de otra marca
Enphase IQ Battery 5P · Tesla Powerwall 3 / Expansion · SolarEdge Home Battery 400V
precio en catálogo
Step 3 — Generate
Circuit detail, production estimates, compatibility
US avg ~$0.16 | CA ~$0.32 | TX ~$0.13 | PR ~$0.27
Generates a printable PDF for permit submission
Notes

📁 My Saved Projects

📐 Design Rules & Notes

Current engine rules and collaborative notes. Review the system rules below, then add observations or suggestions for the engineering team.

⚙️ Current Engine Rules

PWRmicro PM-820
Max Panel Wattage
500W max per input — dual-input (2 panels per micro)
PWRmicro PM-820
Voltage Limits
Max Voc: 70V | Operating: 24–65V | MPPT: 31–42.5V | Start: 22.5–51V
PWRmicro PM-820
Current Limits
Max Isc per input: 18A | Max DC short-circuit: 21A
PWRmicro PM-820
AC Output
820VA @ 240V | CEC efficiency: 97.0% | Peak: 97.3%
PWRmicro PM-820
Branch Circuit Limits
Max 7 micros per 30A branch @240V | Max 6 @208V
Wiring
Micro-to-Panel Ratio
1 micro per 2 panels (ceil) — odd panel gets DC seal cap on unused input
Wiring
AC Trunk Cable Sizes
Small: 1.2m ($20.12) | Medium: 2.0m ($24.69) | Large: 2.35m ($27.61)
Wiring
DC Cable Modes
Standard: 1 Long + 1 Short per micro | Conservative: 2 Long | Portrait: 2 Short
Wiring
Auto Cable Selection
Portrait → Standard DC + Small trunk | Landscape → Conservative DC + Medium trunk
Wiring
Trunk Cable Count
(micros per string − 1) trunks per string, summed across all strings
Wiring
Seal Caps & Terminations
1 AC Male cap + 1 J-Box per string | DC Male caps = (micros×2) − panels
Combiner
Smart Combiner
1 per system — supports up to 28 micros max ($817.23)
PWRcell 2 Inverter
Rated Output
11.5 kW @ 240V | Max continuous: 48A | OCPD: 60A | CEC: 98.5%
PWRcell 2 Inverter
DC Input
Voltage: 400V (range 360–420V) | Max DC current: 34A
PWRcell 2 Inverter
System Limits
Max AC-coupled PV: 15 kW | Max 1 inverter (11.5 kW — not stackable yet) | Max 2 cabinets (36 kWh total)
PWRcell 2 Inverter
Non-PWRmicro Systems
Enphase/SolarEdge/Other → battery-only BOM, no solar cabling, auto-includes PWRcell 2 + 15 kWh
Battery
Module Specs
NMC chemistry | 3.0 kWh per module | 46.8V nominal | 55 lbs each
Battery
Cabinet Configuration
Min 3, max 6 modules per cabinet | Max 2 cabinets per inverter
Battery
Spacer Kit Rule
Required for M3 or M5 configs (3 or 5 modules per cabinet)
Battery
Power by Config
M3: 5.2 kW / 65A LRA | M4: 7.0 kW / 87A | M5: 8.7 kW / 108A | M6: 10.5 kW / 130A
Battery
Ferrite Core Kit
4 ferrites per system — wrap all conductors through ferrite twice: 2 on AC bundle (from SDS) + 2 on DC bundle (from battery). Required for PVC conduit or Romex/NM cable.
Smart Disconnect
SDS Specs
Max backup: 200A | Transfer: <50ms | Max PV breaker: 60A | Max gen: 28 kW
Smart Disconnect
AC PV Limit Check
Total micro AC output must not exceed 15 kW — warns if exceeded
Production
Solar Estimate Parameters
Peak sun hours: location-aware (NREL data, all 50 states + PR/VI/GU) | System losses: 14% | Rate: auto-detected by state (user-editable)
Production
Minimum System Size
Min 2 panels for PWRmicro system | Validates Voc, Isc, wattage before BOM

💬 Team Notes & Suggestions

➕ Add New Rule / Note

⚡ Admin Dashboard

Manage Installers

Generac Part Number Legend

All Generac components used in the BOM Generator with SKU, description, and pack quantity.

Solar — PWRmicro System
SKU Description Pack Qty
APKEPM820 PWRmicro PM-820 — 820W Dual Input Microinverter 5
APKEAC100 Smart Combiner — Max 28 micros 1
APKE00084 AC Trunk Cable Small — 1.2m / 47.2in 20
APKE00086 AC Trunk Cable Medium — 2.0m / 78.7in 20
APKE00088 AC Trunk Cable Large — 2.35m / 92.5in 20
APKE00090 AC J-Box Termination Cable — Left 20
APKE00091 AC J-Box Termination Cable — Right (Alternate) 20
APKE00092 DC Short Cable — 380mm / 14.96in 40
APKE00094 DC Long Cable — 1010mm / 39.76in 40
APKE00096 AC Trunk Cable Female Seal Cap 50
APKE00098 AC Connector Male Seal Cap 50
APKE00100 DC Connector Male Seal Cap 50
APKE00102 Cable System Disconnect Tool 10
Battery — PWRcell 2 System
SKU Description Pack Qty
APKE00075 PWRcell 2 Inverter — 11.5 kW 1
APKE00076 PWRcell 2 Battery Cabinet — holds 3-6 modules 1
G0080041 3.0 kWh DCB PWRcell Battery Module 1
APKE00067 Smart Disconnect Switch (SDS) 1
APKE00008 PWRcell Spacer Kit — for M3 and M5 configs 1
APKE00009 PWRcell Upgrade Kit — adding modules to existing cabinet 1
APKE00118 Ferrite Core Kit — 6 Qty 1
APKE00109 PWRcell 2 Leveling Feet — ground-supported installations 1
Optional Accessories
SKU Description Pack Qty
APKE00110 External CT Kit — Split Phase 1
APKE00115 Parallel CT Kit 1
Pack quantities indicate the minimum order unit from Generac. The BOM calculates individual unit pricing when computing totals.

Training & Certification

Get certified on Generac products to start selling and installing. Complete these courses to unlock your dealer capabilities.

SOLAR

PWRmicro Certification

Learn to design and install Generac PWRmicro microinverter systems. Required for all PWRmicro installations.

Course: ACPV101
Format: Online, self-paced
Duration: ~2-3 hours
Prerequisite: None
PM-820 Microinverter AC Trunk Cables Junction Boxes
Enroll in ACPV101
BATTERY

PWRcell 2 Certification

Master the next-generation PWRcell 2 battery storage system. Design, install, and commission residential energy storage.

Course: PWRcell 2 Training
Format: Online, self-paced
Duration: ~3-4 hours
Prerequisite: PWRcell 1 recommended
PWRcell 2 Inverter Battery Modules PWRfleet Monitoring
Enroll in PWRcell 2
GENERATOR

Generator Certification

Become certified to sell and install Generac home standby generators. Complete the Generac Home ecosystem.

Course: Generator Dealer Training
Format: Online + field component
Duration: Varies
Prerequisite: Electrical license
Home Standby Generators Automatic Transfer Switch Mobile Link Monitoring
Enroll in Generator Training

Recommended Certification Path

1
ACPV101 — PWRmicro Start here. Learn solar microinverter design and installation.
2
PWRcell 2 — Battery Storage Add energy storage to your solar proposals. Higher revenue per install.
3
Generator — Complete Generac Home Offer the full Generac Home solution: solar + battery + generator.

Additional Resources

Generac University Become a Dealer PWRfleet Portal Generac Clean Energy

Find a Certified Installer

Generac-certified solar and battery installers in your area

Select a state and click Search to find certified installers in your area.
Are you an installer?
Get certified on Generac products and join our installer network.
Become a Generac Dealer

Generac BOM Generator

PWRmicro + PWRcell 2 — BOM Generator
This tool was built with love and dedication by a Generac fan who believes in the power of clean energy and great engineering.

The goal is simple: make it fast, easy, and accurate to generate Bills of Materials for Generac PWRmicro solar + PWRcell 2 battery systems — with multiple pricing tiers, intelligent cable selection, and detailed analysis reports.

We hope the engineering community will collaborate to improve this tool over time. Use the Design Rules tab to share observations, suggest improvements, and help refine the BOM engine for everyone.

Together, we make solar better. ☀️
Generac Ecosystem Community Driven Made with ❤️ Open Collaboration
Version 2.0 — Built for the solar community 🌎

⚙️ Profile Settings

US avg $0.16 | CA $0.32 | TX $0.13 | HI $0.43 | PR $0.27

📋 Terms & Conditions

Please review and accept before using the BOM Generator

1. Disclaimer of Liability

The Generac BOM Generator ("Tool") is provided as-is for informational and estimation purposes only. The Bill of Materials (BOM), pricing, wiring calculations, and system recommendations generated by this Tool are estimates and should not be relied upon as final engineering specifications.

  • All BOMs must be independently reviewed and verified by a licensed engineer or qualified solar professional before use in any project.
  • PJVolta and the contributors of this Tool are not responsible for any errors, omissions, or inaccuracies in the generated BOMs, pricing, or system designs.
  • You assume full responsibility for verifying all materials, quantities, specifications, and compliance with local codes before purchasing or installing any equipment.

2. Use at Your Own Risk

By using this Tool, you acknowledge that:

  • The Tool is a planning aid, not a substitute for professional engineering review.
  • Pricing shown reflects estimated distributor costs and may differ from actual quotes.
  • Solar system design requires consideration of local building codes, utility requirements, and site-specific conditions that this Tool may not fully capture.
  • You use this Tool entirely at your own risk and agree to hold harmless PJVolta and all contributors from any claims, damages, or losses arising from its use.

3. Data Collection & Usage

To improve the accuracy and functionality of the BOM Generator:

  • Project data you submit (panel configurations, battery selections, system designs) may be stored and analyzed to enhance the Tool's recommendations and design rules.
  • Your email address and profile information are used for authentication and user experience purposes.
  • Design rules and notes you contribute are shared with all authenticated users to support community collaboration.
  • We do not sell or share your personal information with third parties.
  • Equipment specifications come from the California Energy Commission Solar Equipment Lists and from manufacturer datasheets; no document you upload is sent to any AI provider.

4. Community Contributions

Design rules, notes, and feedback submitted through the Tool are contributed to the community knowledge base. By submitting content, you grant a non-exclusive license for this content to be used to improve the Tool for all users.

5. No Warranty

This Tool is provided without warranty of any kind, express or implied. PJVolta makes no guarantees regarding availability, accuracy, or fitness for a particular purpose.