Solar + Storage ROI Calculator

Key Assumptions: Philippine solar irradiation ~5.0 peak sun hours/day. Electricity price escalator: 3%/year (Meralco historical avg). Solar panel degradation: 0.5%/year. LiFePO4 battery replacement at Year 12 (cost: ~18% of initial equipment). Installation cost: 15–20% of equipment (varies by site). Maintenance: 0.5% of system cost/year. No net metering / feed-in tariff credited (conservative estimate). All system prices are from official VoltHub quotation sheets.

This calculator uses actual VoltHub quoted prices and Philippine-specific assumptions. Actual savings vary by location, roof orientation, shading, and consumption patterns. A site survey is required for a binding quotation.
VoltHub Electronic Power Generation Services Corp. • sales@volthub.ph • 09682323704