Use Philippine grid rates, regional peak sun hours, appliances, and backup goals to estimate system size, runtime, harvest, and ROI.
Calculator workflow
Step 1
Enter bill and location
Step 2
Add appliances and backup
Step 3
Review sizing and savings
This is the main calculator for homeowners. It combines bill, region, appliances, backup hours, and cost estimates in one guided flow.
Panels
Inverter
Battery
ROI
Local assumptions for Philippine homes and small businesses.
Fast estimates you can compare with installer quotations.
Animated system flow on the main sizing calculator.
Pick the tool that matches your current planning question.
Get recommended panels, inverter, battery, savings, and ROI from your electric bill.
Calculate how long your battery will power appliances during brownouts.
Estimate daily and monthly kWh production from your panel array.
Calculate payback period and long-term savings on your investment.