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Solar Planning Tools
Browse 14 in-depth Solar Planning Tools guides from Solar Home Planner. Our editorial team researches and writes each one to give you clear, practical answers, current as of August 2026. The newest are shown first.
Free Solar System Design Software: Save $5,000+ on Planning
Most homeowners who contact me about solar have already spent three or four hours on a manufacturer’s …
Solar System Design: 8 Key Considerations for Your Home
Most people who contact me about solar have already spent three weeks watching YouTube videos and gotten three …
PVWatts Calculator: Use 9.6 kW Systems to Estimate Solar Output
Most solar calculators are glorified guessing games dressed up with satellite imagery. PVWatts, built and …
50% More Solar Power: How Shade Analysis Maximizes Your Panels
Shade kills more solar systems than bad panels ever will. I don’t mean that metaphorically. A single …
Can Solar Panels Power a Whole House? What You Need to Know
Most coverage of this question gives you the same non-answer: “It depends on your energy use and …
Solar Panel Angle Calculator: Find Your Optimal Tilt by Zip Code
Most homeowners installing solar panels lose between 10% and 25% of potential energy production simply because …
How Many Solar Panels Does a 2000 Sq Ft House Need?
Most articles about this topic start with a rule of thumb like “you need 20-25 panels” and then …
Does Google Sunroof Overestimate Your Solar Potential?
Google Project Sunroof told a homeowner in my area she’d save $1,400 a year with solar. She called me …
Size Your Solar System: A Homeowner's Calculation Guide
Your electricity bill is the single most important document in your whole solar project, and most people …
Which Solar Payment Option Saves You Money
The financing decision you make before a single panel goes on your roof will shape your relationship with …
Decode Your Solar Proposal: A Buyer's Guide
Most homeowners sign a solar proposal they don’t fully understand. I didn’t either, and I was …
How Much Solar Power Does a 2000 Sq Ft Home Need
You just got your electric bill, and somewhere between the total due and the fine print about rate increases, …
Solar Production by State: Output and Savings Estimates
How much power your rooftop solar system actually produces? Geography. A 6 kW system in Phoenix looks …
Plan Your Solar Installation in Minutes
Planning to go solar is one of the best decisions a homeowner can make. Whether you’re looking to cut …