Understanding Your Solar Savings: A Complete Guide
If you are considering solar panels for your home, the first question is always the same: how much will I actually save? This guide breaks it down honestly.
How Solar Savings Work
Solar savings come from replacing utility electricity with self-generated power. The math depends on your local utility rate, system size, roof orientation, and shading.
The Rate You Pay Matters More Than You Think
Most solar calculators use a single average rate. In reality, many utilities have tiered or time-of-use rates that dramatically affect your actual savings. Always check your bill for the rate structure.
Understanding Electricity Rates
Your electricity rate is the single biggest factor in solar savings. Higher rates mean bigger savings. The national average is around 17 cents per kWh, but rates vary wildly from 10 cents in some states to over 40 cents in others.
System Sizing Basics
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A typical residential system is 6-10 kW. The right size depends on your electricity usage, roof space, and budget. Bigger is not always better — oversizing wastes money if your utility does not offer good net metering.
Ownership Options
There are three main ways to go solar: paying cash, financing with a solar loan, or using a third-party ownership arrangement like a lease or PPA.
TPO Is Not Free Solar
Lease and PPA companies market their products as free solar. In reality, you are renting someone else's equipment on your roof. The savings are real but smaller than owning, and you give up control.
Next Steps
Before You Get Quotes
Use our calculator to estimate your savings based on your actual address and electricity bill. Then get at least three quotes from different installers to compare.
The most important thing is to go in with realistic expectations. Solar is a great investment for most homeowners, but the details matter.
Last updated: (3 weeks ago)
Run the Numbers for Arizona
Solar in Arizona costs $2.14–$3.21 per watt
National average: $3.36/W
See how much you could save