Free Solar Tools & Guides for Every US Homeowner
Calculate your savings, compare financing options, find local incentives, and make an informed decision about going solar — all customized to your city and state.
Calculators & Cost Tools
Crunch the numbers for your specific home and location
Solar Savings Calculator
Calculate how much you can save by switching to solar based on your location, electricity usage, and local incentives.
Explore →Cost Comparison Tool
Compare solar vs. traditional electricity costs over 5, 10, 15, and 25 years with visual charts.
Explore →System Sizing Tool
Find out exactly how many solar panels your home needs based on your energy usage and roof space.
Explore →Financing Calculator
Compare cash, loan, lease, and PPA options to find the best way to finance your solar installation.
Explore →Is Solar Worth It?
Get a definitive, data-driven answer on whether solar makes financial sense for your specific location.
Explore →Incentives & Regulations
Find credits, rebates, and understand local requirements
Solar Incentives by State
Find every federal, state, and local incentive available for solar in your area. Tax credits, rebates, SRECs, and more.
Explore →Permits & Regulations
Understand local solar permit requirements, HOA rules, and the interconnection process for your city.
Explore →Production Guarantee
Understand how much energy your solar panels will produce over 25 years, with degradation and savings projections.
Explore →Warranty Comparison
Compare solar panel, inverter, and workmanship warranties side-by-side. Know exactly what's covered.
Explore →Installation & Planning
Everything you need from roof check to power-on
Roof Assessment Tool
Check if your roof is suitable for solar based on orientation, shading, age, material, and pitch.
Explore →Installation Checklist
Interactive step-by-step checklist for every phase of your solar installation, customized to your city.
Explore →Installation Timeline
See exactly how long solar installation takes in your city — from permits to power-on, with local timelines.
Explore →Installer Questions
20 essential questions to ask your solar installer before signing a contract.
Explore →Technology & Extras
Batteries, EVs, monitoring, and staying informed
Solar Technology Guide
Compare panel types, batteries, inverters, and EV chargers with detailed specs and recommendations.
Explore →Battery Storage Calculator
Should you add a battery? Calculate ROI, backup hours, and TOU savings for your state.
Explore →EV Solar Calculator
Find out how much additional solar you need to charge your electric vehicle for free.
Explore →Solar vs. Generator
Compare solar + battery backup against a traditional standby generator for cost, reliability, and impact.
Explore →Monitoring Guide
Learn how to read your solar monitoring dashboard, understand key metrics, and optimize production.
Explore →Solar & Energy News
Stay updated on solar policy changes, market trends, technology breakthroughs, and utility rate updates.
Explore →