Solar Roof Analyzer
Use Google Solar API building insights to inspect panel fit, roof segments, sunshine and maximum reference production by address.
Analyze a roof →Solar intelligence for U.S. homeowners
Know your roof. Know your cost. Know your payback.
Analyze your roof, estimate system size and savings, research incentives, compare equipment and check installer proposals without the sales pitch.
✓ 50-state electricity data✓ ZIP-specific PVWatts✓ Homeowner-first methodology
Annual usage is estimated from your bill and electricity rate. With a valid ZIP, production is modeled using NLR PVWatts V8; otherwise the calculator uses a state-level planning factor.
50state solar data hubs
ZIP-levelPVWatts production
Addressroof insights available
25-yearsavings outlook
Start with your house and your numbers
Connected solar tools, not isolated calculators
Move from roof potential to system size, cost, financing, battery backup, EV and heat-pump demand, and proposal review with transparent assumptions at each step.
Home Solar Calculator
Estimate system size, panel count, production, installed cost, payback and 25-year savings with ZIP-specific PVWatts data.
Open calculator →Solar Cost Calculator
Compare planning costs by system size, cost per watt, panel wattage, state and battery add-on.
Explore solar cost →Battery Backup Calculator
Estimate backup duration from daily critical loads and published home-battery capacity.
Size battery backup →Solar + EV Calculator
Estimate annual EV charging energy and the additional solar panels needed to offset driving.
Calculate EV solar →Solar Quote Analyzer
Check $/W, financing premium, production assumptions, equipment details and questions to ask before signing.
Analyze a proposal →More homeowner planning tools
Answer the next question without leaving the workflow
Roof Solar CalculatorEstimate how many panels may fit from usable roof area.Solar Panel CalculatorEstimate panel count from annual energy use and local solar yield.Payback CalculatorModel cumulative payback with rate escalation and panel degradation.Solar Loan CalculatorSeparate APR, dealer fee, monthly payment and total financing premium.Solar + Heat PumpConvert existing heating fuel into a new electrical and solar load.Electricity RatesCompare residential electricity prices across all 50 states.Net Metering GuideUnderstand export credits, net billing and time-of-use economics.Solar Score MethodologySee exactly what the planning score includes and excludes.
Research hubs
Compare markets before personalizing the model
Use standardized datasets to see how price, electricity value and utility rules vary, then move into a ZIP-, roof- or load-specific tool.
Solar Cost by StateCompare $/W plus standardized 6 kW and 8 kW system prices across all 50 states.Solar Payback by StateCompare the same transparent 8 kW payback screening model across all 50 states.Solar Export Rules by UtilityCompare verified net metering, net billing and export-credit models at the utility level.Home Battery Sizing GuideCompare battery-unit requirements for 5-30 kWh/day backup scenarios.
Local economics matter
Solar data, utilities and incentives by location
A system that makes sense in Arizona can look very different in Massachusetts. Explore current state electricity prices, ZIP-level utility information, solar resource and residential incentives.
CaliforniaTexasFloridaArizonaNevadaNew YorkMassachusettsColorado+ 42 more
Location intelligence
From state average to the actual home
Electricity priceEIA state data
Solar productionPVWatts by ZIP
Roof geometryGoogle Solar API
Utility plansOpenEI lookup
IncentivesState / utility lookup
Home Solar Atlas original data
Build a real solar price database with homeowners
Advertised averages do not tell the whole story. Our moderated dataset normalizes anonymized homeowner proposals to solar-only dollars per watt so prices can be compared across system sizes and states.
Moderated submissions
What we collect
LocationZIP + state
SystemkW + equipment
PriceSolar-only cash price
FinancingCash / loan / lease / PPA
PrivacyNo name or street address required
Compare before you buy
See the equipment, then compare the specifications
Product imagery is optimized and served directly by Home Solar Atlas. Technical claims remain tied to manufacturer source pages and current datasheets.
REC Alpha Pure-RX
Power450-470 W
Efficiency22.6%
Start with one current module, then compare all listed residential panel families.
Browse solar panels →REC vs Qcells vs Silfab →
Tesla Powerwall 3
Capacity13.5 kWh
Power11.5 kW on-grid / 11.5 kW backup
Compare capacity, output, architecture, scalability and warranty before sizing storage.
Browse home batteries →Powerwall vs Enphase vs FranklinWH →How many batteries do I need? →Solar news that answers one question
What does this mean for homeowners?
Policy changes, utility programs, battery launches and pricing shifts translated into practical homeowner impact instead of industry jargon.
Read solar news →HOMEOWNER NEWS DESKPolicy · Costs · Utilities · Batteries · Technology
Every item separates the confirmed development from our explanation of what it could change for a homeowner's purchase, payback or equipment choice.
Home Solar Atlas
Analyze My Roof