Make smarter decisions about home solar.
Estimate project costs, understand solar panel performance, and plan maintenance with practical tools and straightforward guides for US homeowners.
Free solar planning calculators
Get an initial estimate, then adjust for actual quotes, your roof, local utility rates, and current incentive eligibility.
Solar Panel Cost Calculator
Explore estimated installation costs by system size, with guidance on what quotes and incentives may change.
Open cost calculator → Roof optionsSolar Roof Cost Calculator
Compare an initial solar roof cost estimate and learn what additional roof work may affect the final price.
Explore roof estimates → MaintenanceSolar Panel Cleaning Cost Calculator
Estimate cleaning expenses using panel count and service assumptions. Actual prices and benefits vary.
Estimate cleaning cost →Your home solar planning path
Three steps to help you move from an initial idea to informed questions for an installer.
Understand your energy use
Review 12 months of electricity bills and consider future changes such as EV charging or electric heating.
Assess the roof and production
Look at shading, roof condition, orientation, and expected output before choosing a system size.
Compare complete proposals
Review equipment, warranties, financing, utility rules, installation work, and applicable incentives.
Helpful solar panel guides
Find focused explanations of the questions homeowners ask about production, installation, and ownership.
How much energy do solar panels produce?
Learn the key factors behind solar electricity generation.
How long do solar panels last?
Understand lifespan, performance decline, and warranty basics.
Do solar panels work in shade?
See why tree cover, roof obstacles, and partial shade matter.
Solar panel direction and tilt
Understand orientation and the angles that affect performance.
How long does solar installation take?
Explore project stages, inspections, and utility approval.
Buying a home with solar panels
Know which ownership, contract, and maintenance questions to ask.
What makes a solar estimate useful?
Solar numbers are only as good as their inputs. Check these details before relying on an online calculator:
- Equipment capacity, roof area and local sunlight
- Real installation quotes and financing costs
- Your utility’s rates, fees and export-credit rules
- Verified local incentives and current eligibility
For location-specific production estimates, explore the PVWatts Calculator.
Solar basics without the guesswork
Solar is a long-term investment. Start with how photovoltaic panels work, then understand roof conditions, system output, cleaning needs, and the questions to bring to a licensed installer.
Our articles are general educational resources, not an on-site electrical inspection, engineering assessment, or personalized tax advice.
Begin with: What is a solar panel? →Make your next solar decision clearer.
Explore the guides, learn about the project, or get in touch with a question.