Solar advice without the sales pitch
Most solar calculators are run by companies trying to sell you panels — so the numbers always look great. Solar Sovereign is different.
It runs the same honest financial math a careful engineer would: true payback period, lifetime savings, levelized cost of energy, and an energy-independence score that shows how much of your power you'd actually cover. You put in your monthly bill and location. It tells you the truth — even when the truth is “wait.”
Built for two kinds of people
Know before you commit
Thinking about solar but not sure it's worth it? Get a clear, unbiased estimate of your savings and payback before you ever talk to an installer. Free, unlimited, no sign-up required.
Proposals your clients can trust
Turn every calculation into a branded, professional proposal. Save your clients' projects, manage your pipeline, and hand over numbers your customers can trust. Available with an Installer Pro subscription.
Three inputs, real answers
Enter your bill and location
Tell it your average monthly electric bill and where you are in the Philippines. It uses real solar irradiance data for your area, not a national average.
Size your system
Adjust system size, battery, and scenario — net metering, self-consumption, battery backup, or off-grid. Watch the numbers respond instantly.
See the honest result
Payback period, year-one savings, 25-year returns, CO₂ avoided, and your energy-sovereignty score — all in plain figures you can act on.
One real example
A household in Bobon, Northern Samar
₱6,000 monthly bill · 5 kWp system
Your results will differ — that's the point. Run your own numbers.
Try it yourself
No sign-up, no email, no sales call. Move the sliders and see your numbers.
Open the live calculator and get your honest solar numbers in seconds.
☀️ Launch full app →For installers: proposals that build trust
Solar Sovereign Installer Pro lets you generate branded proposals with your own logo and colors, save every client's project, and manage your pipeline — all backed by the same honest math your customers can verify. It's a monthly subscription, and you can cancel anytime.
Explore Installer Pro →See what solar really means for your home.
Free for homeowners. Honest by design.
☀️ Launch Solar Sovereign →