How we research and fact-check

Solar is a five-to-six-figure decision, and the internet is full of solar content written to sell rather than to inform. Our whole reason to exist is to be the accurate, plain-English alternative. This page explains exactly how we research, where our numbers come from, and how we keep them honest — so you can judge our work, and so it’s clear why you can trust it.

Every page is fact-checked before it ships

Nothing goes live on a hunch. Before a guide or review is published, its factual claims — specs, prices, warranties, brand facts, rules, and technical statements — are checked against real sources. We run an adversarial review pass whose job is to disprove claims, not confirm them: anything that can’t be verified is corrected, softened to what the evidence supports, or removed. When we can’t confirm something, we say so rather than guess.

How we handle prices

We quote price ranges, never invented single figures, because real installs genuinely vary by roof, brand, installer, and location. Our ranges are based on typical installed costs quoted by Philippine installers, cross-checked against current utility rates and system-size math. Prices, incentives, and utility rates change — often monthly — so every estimate is a snapshot at today’s rates, and we date our pages so you can see how current they are.

Our savings and sizing math

Our calculators use a transparent model: your bill divided by the current retail electricity rate gives your usage, sizing follows real production per kilowatt in Philippine sun conditions, and savings reflect self-consumption rather than a fantasy 100% offset. We deliberately show realistic bill reductions (around 90%, not 100%) and we account for the fact that exported power is credited below the retail rate under net metering. The estimator on the site and our standalone tools share the same underlying model, so they agree with each other.

Sources we rely on

• The Department of Energy (DOE) for policy and net-metering rules.
• RA 9513 (the Renewable Energy Act) and ERC net-metering rules for the legal framework.
• Distribution utilities (Meralco, VECO, and others) for rate and net-metering process details.
• Manufacturer specifications and official distributor information for product facts.
• The Philippine Electrical Code (PEC) for safety and installation standards.

Where a claim rests on a single commercial or marketing source, we treat it as directional and say so, rather than presenting it as settled fact.

We keep pages up to date

Solar pricing, incentives, utility rates, and rules move. We revisit and update pages as things change and show a “last updated” date on each one. If you spot something that’s gone stale or looks wrong, tell us — see corrections below.

What we are, and what we’re not

We are an independent research and comparison site for Philippine homeowners. We are not a solar installer, and we do notprovide licensed engineering or financial advice. Our estimates are a starting point to help you ask better questions — your final numbers should come from a licensed installer’s free site survey and, for financing, from the lender itself.

How we make money — disclosed

When you request a quote, we may earn a referral fee from the installers we match you with. It never changes your price and you’re never obligated to buy. On backup-power pages we use affiliate links (taggedrel="sponsored") and may earn a commission at no extra cost to you. None of this changes what we recommend — we only point you to products and installers we’d be comfortable sending a family member to. More detail on our About page.

Corrections

Found an error or something out of date? Emailhello@gosolarph.com and we’ll review and fix it. Accuracy is the whole point of this site, and corrections make it better.