Sample Home Solar Scorecard
74/ 100
Strong candidate
Sun exposure
15
Roof orientation
15
Roof pitch
10
Roof condition
15
Roof material
15
Monthly bill
4
Sun exposure, orientation, and pitch are auto-detected from satellite data. You provide condition, material, and bill.
The Home Solar Scorecard

A 1–100 score and detail built on your property

Six factors weighted by real-world impact on solar production and ROI. The first three are auto-detected from satellite and LiDAR data.

Sun exposureAuto-detected from satellite imagery
25 pts
Roof orientationAuto-detected — which direction your roof faces
20 pts
Roof pitchAuto-detected — affects racking and production
10 pts
Roof conditionYou provide — age and condition determines install readiness
15 pts
Roof materialYou provide — affects mounting hardware and cost
15 pts
Monthly billYou provide — determines offset potential
15 pts
Scorecard tiers
80–100Excellent candidate
60–79Strong candidate
40–59Good candidate
20–39Moderate opportunity
1–19Limited fit

Ready to see your Home Solar Scorecard?

Start your analysis →
California Grid Policy

How your excess power is credited in California

Since April 2023, all new residential solar in PG&E, SCE, and SDG&E territories is billed under California's Net Billing Tariff (often called NEM 3.0). Four things to know:

Solar you use is worth the most

Every kWh your panels produce that your home uses directly offsets electricity you'd otherwise buy at your full retail rate. Self-consumption is where the savings are.

Solar you export earns less

Surplus power sent to the grid is credited at avoided-cost rates — roughly 4–8¢/kWh, varying by hour and season. A fraction of what you pay for grid power.

Batteries are now central to the strategy

Store your midday surplus and run your home through the 4–9 PM peak instead of exporting cheap and buying back expensive. That's the core of solar economics today.

Right-size, don't max out

Systems sized to match your consumption — with a battery handling evenings — pay back fastest. Typical payback: ~9–12 years solar-only, ~8–10 years solar + battery.*

Already have solar from before April 2023?

Your system stays on its original net metering terms for 20 years from its permission-to-operate date. Adding a battery generally doesn't change that — but expanding your panels beyond a one-time allowance of 1 kW or 10% of original size can move your whole system to current rules. Confirm with your utility before modifying anything.

Add a battery to my system →
* Payback estimates vary across utilities, system size, and household energy usage.
The process

Your Home Solar Scorecard, matched to installers, appointments booked — quick and easy.

1

Enter your address

We pull satellite and LiDAR data from the Google Solar API to get an accurate and up to date view of your roof.

2

Answer 3 quick questions

Roof condition, roofing material, and monthly electricity bill. Under 60 seconds — the first three factors are auto-detected.

3

Get your 6-factor scorecard

Your Home Solar Scorecard (1–100) with a factor breakdown, plus California incentives for your ZIP code and utility.

4

Choose your installer

Browse matched California installers. Select who you want — then book directly on their calendar. No intermediary.

Get on the path to Energy Independence.

See my Home Solar Scorecard →

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