Home Solar Atlas
Interactive solar planning tool

Build a Solar + Inverter + Battery Configuration

Choose the hardware stack, refine annual and monthly production with PVWatts, check modeled roof capacity, then compare solar output against household electricity use before screening cost, savings and payback.

Step 1

Choose a solar panel

Step 2

Choose an inverter architecture

Step 3

Choose home storage

Step 4

Location, PVWatts and roof fit

PVWatts production by ZIP

Replace the state planning yield with NLR/NREL PVWatts v8 for your ZIP and roof orientation.

Google Solar roof analysis

Check modeled rooftop capacity, imagery and whether your selected system size fits the reference roof model.

Your configuration

8.46 kW solar + 27.0 kWh storage

Production currently uses the selected state planning yield.

REC Alpha Pure-RX full-black residential solar panel
Image: REC Group
REC Alpha Pure-RX18 panels × 470 WApprox. 8.46 kW DC
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Enphase IQ8HC black module-level solar microinverter illustration
Image: Home Solar Atlas local product visual
Enphase IQ8HC MicroinverterModule-level microinverterIntegrates with the Enphase Energy System, including IQ Battery and IQ Gateway
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Tesla Powerwall 3 home battery
Image: Tesla
Tesla Powerwall 32 units × 13.5 kWh27.0 kWh usable capacity
18estimated panels
8.46 kWselected DC size
2full battery units
27.0 kWhusable storage
Solar price benchmark$20,896$2.47/W, state benchmark
Estimated annual production13,367 kWh1,580 kWh/kW/yr · state planning yield
Estimated annual savings$3,54733.17¢/kWh × 80% value capture
Simple solar payback5.9 yearsBefore incentives, financing, degradation and rate escalation

PVWatts: ZIP-based output uses a 1 kW reference system with your tilt and azimuth, then scales that yield to the configured array.

Usage balance: annual household use is distributed by calendar days, not by invented seasonal assumptions. For bill-grade analysis, use actual monthly utility kWh and interval data when available.

Battery dispatch: the storage screening uses an average-day approximation within each month and a 90% round-trip-efficiency assumption. It is intended to show direction and scale, not promise a specific bill reduction.

Roof analysis: Google Solar capacity is based on imagery, roof modeling and a reference panel layout. Final setbacks and equipment layout require installer design.

Economics: solar price uses the current state benchmark when available. Storage is included only when you enter its installed cost. No incentives are assumed here.

Full Roof AnalyzerProduction calculatorBattery calculatorDetailed paybackCheck a quote

From broad benchmark to monthly home-energy screening

The builder starts with state electricity-rate and price benchmarks. PVWatts adds ZIP, tilt, azimuth and monthly production; Google Solar checks modeled roof capacity; annual household kWh is distributed by calendar days to create a neutral monthly usage baseline. The monthly balance is a screening model, not an hourly battery-dispatch or utility-billing simulation.

Equipment comparison hubFull Roof AnalyzerProduction calculatorCompare quotes