Published On:
March 18, 2026
Last Updated On:
Mar 18, 2026
If you're a California homeowner, your electric bill isn't just expensive — it's a problem that compounds every year. Utility rates continue to climb, and under today's Net Billing system (NEM 3.0), the financial advantage has shifted even further in the utility's favor. The result is a gap that most homeowners don't fully see until someone puts the numbers in front of them.
That's exactly what the Option One Solar Savings Calculator is designed to do. In about 10 seconds, it gives you a clear, real-world financial comparison between staying with the utility and switching to solar with battery storage — so you can make an informed decision based on actual numbers, not a sales pitch.
Why California Homeowners Are Overpaying for Electricity
Most homeowners assume their electric bill is just a cost of living. It's not. It's a choice — and for most households in Southern California, it's one of the most expensive choices they're making without realizing it.
Over a typical 25-year system lifespan, many homeowners will pay ten times more for electricity from the utility than it would cost to generate that same power with solar. As utility rates continue to rise, that gap only widens. For many families, the difference over time adds up to tens of thousands — or in some cases, hundreds of thousands — of dollars.
The shift to Net Billing (NEM 3.0) made this worse. Under the old net metering rules, homeowners could send excess solar energy back to the grid and receive meaningful credits. Under NEM 3.0, the utility pays a fraction of what it once did for that exported power. The "send it back and get credit" model that solar was known for has largely disappeared, and systems designed around that model often underperform today.
Understanding this context is the first step to understanding what the calculator is actually measuring.
How the Solar Savings Calculator Works
The Option One Solar Savings Calculator is built to give you a powerful financial estimate without requiring a lengthy form or a sales call. It only needs two inputs:
Your location
Your average monthly electric bill
From those two data points, the calculator can estimate your home's energy consumption, your local electricity rate, the amount of solar production your roof can generate, and what a properly sized solar and battery system would cost to install. It then projects both paths forward — what you'll pay the utility over time versus what it would cost to produce your own power — and shows you the difference.
This is not a quote or a final proposal. It's a financial comparison tool designed to show you the real cost of staying on the grid versus taking control of your energy.
Key Factors That Influence Your Savings
While the calculator works from just your bill and location, several underlying factors shape your actual results:
Energy Consumption: Households with higher energy use typically see the greatest savings, because they're offsetting more of the expensive grid power they would otherwise buy.
Local Electricity Rates: Southern California has some of the highest utility rates in the country. The higher your rate, the more valuable every kilowatt-hour your system produces.
Sun Exposure: California's climate is one of the best in the nation for solar production. More sunlight means more energy generated and more savings over time.
Roof Condition: The condition and orientation of your roof affects both system design and installation cost. In some cases, a roof upgrade may be part of the project scope.
Battery Storage: Whether or not your system includes battery storage has become one of the most important variables in calculating real-world savings — which brings us to the issue most solar companies still aren't addressing honestly.
Why Solar Without Battery Storage Often Doesn't Work Anymore
Solar has changed significantly in the last few years, and not every company has updated their approach to reflect that.
Under NEM 3.0, a solar-only system often underperforms expectations. Without a battery, excess energy your panels produce during the day gets exported to the grid at very low compensation rates. Then, when the sun goes down and rates are highest, you buy that same power back at full price. You're giving energy away cheap and buying it back expensive — which is the opposite of the intended outcome.
This is why 95% of the systems Option One Solar installs today include battery storage. A battery changes the equation entirely. Instead of exporting excess energy to the grid at a low rate, you store it and use it when rates are highest — typically in the evenings. You also gain backup power during the outages that are becoming more frequent across Southern California.
Battery storage does represent a meaningful portion of overall system cost — in some cases up to half of the materials budget. But without it, many solar systems installed today simply don't deliver what homeowners expect. The calculator reflects this reality by modeling solar and battery together as the standard configuration.
What Most Solar Calculators Miss: Your Energy Future
The savings calculator gives you a solid starting point, but there's a factor that most tools — and most solar companies — overlook: a thorough understanding of your past, present, and future energy consumption.
What you've used historically, how you're currently using energy, and how that usage might change in the coming years are all critical to designing a system that actually performs. Are you planning to add an electric vehicle? Upgrading your HVAC? Adding a pool, an ADU, or expanding your square footage? Each of these changes your energy profile, and a system designed around today's usage may fall short of your needs in three to five years.
This is one of the most common reasons homeowners end up with solar systems that disappoint — not because solar doesn't work, but because the discovery process wasn't thorough enough. Every home and every family is different, and getting that discovery right is where the real work happens.
Choosing the Right Solar Company Matters More Than the System Itself
The solar industry has no shortage of installers. What it lacks is companies willing to do the work required to design a system that performs as promised.
Done wrong, you still have an electric bill. Done right, you eliminate it. The difference often comes down to whether the company you choose is willing to invest the time to fully understand your energy situation before recommending a solution.
Option One Solar designs every system around a complete discovery of the homeowner's energy profile — historical usage, current consumption, and future needs. This isn't a step we skip to close a deal faster. It's the foundation of a system that actually delivers.
See What You're Really Paying
The Solar Savings Calculator gives you a clear, honest look at what staying with the utility is actually costing you — and what it would take to change that.
Try the calculator now to see your personalized estimate in 10 seconds, or call us directly at (855) 502-6363 to speak with our team about your home's specific situation.
The biggest mistake homeowners make isn't waiting too long to go solar. It's choosing the wrong system — or the wrong company — and finding out after the fact that it wasn't designed to actually work.
