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Size
Browse 4 in-depth Size guides from Solar Home Planner. Our editorial team researches and writes each one to give you clear, practical answers, current as of July 2026. The newest are shown first.
Off Grid & Backup Power
Calculate Your Ideal Solar Battery Size in Minutes
Most solar battery sizing guides will tell you to add up your daily kWh usage, multiply by your backup days, …
Solar Planning Tools
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 …
System Sizing
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 and EV Charging
Size Your Solar System for EV Charging Right
Most homeowners I talk to start the solar-plus-EV conversation completely backwards. They buy the car first, …