Thinking about installing solar panels? This free, open-source solar calculator can help you estimate how much electricity a solar system could generate for your home, what size system you might need, and how long it may take for your investment to pay for itself. It is a practical tool for exploring your options before relying on sales pitches or costly quotations, helping consumers make more informed energy decisions.

At the same time, we recognize that installing rooftop solar remains beyond the reach of many Filipino households because of its high upfront cost. Clean and affordable energy should not depend only on who can afford private investments. Alongside tools like this calculator, the Philippines needs stronger public support, community-based renewable energy systems, and policies that make clean electricity genuinely accessible and affordable for everyone. Every Filipino deserves access to reliable, affordable, and sustainable energy—not as a privilege, but as a right.