1️⃣ Status Quo
₱
/kWh
Your blended rate = Total Bill ÷ Total kWh consumed.
Typical: Residential ₱20/kWh, Commercial ₱15/kWh.
🔗 Meralco Rates
Typical: Residential ₱20/kWh, Commercial ₱15/kWh.
🔗 Meralco Rates
⚠️ Rate looks very low. Did you mean a whole number like 12 for ₱12/kWh? Enter the full rate, not a decimal fraction.
How many weeks per year your facility operates. Businesses: typically 50 weeks (allowing for holidays). Residential: 52 weeks.
Typical: Commercial 5-6 days/week, Residential 7 days/week. This affects your total operating days per year.
kWh
Average daily electricity consumption. Check your bill for monthly kWh and divide by 30.
₱
Enter your actual annual bill to override the projected cost calculation.
Section 1 Results — Your Current Electricity Costs
Operating Days/Year
0
Annual Consumption
0 kWh
Daily Consumption
0 kWh
Projected Annual Cost
₱0
Projected Monthly Cost
₱0
2️⃣ PhotoVoltaic System
kW
Total solar panel capacity. Typical residential: 3-10 kW, Commercial: 50-500 kW
hrs
Peak Sun Hours (PSH) = equivalent hours of full sun (1,000 W/m²) per day.
🇵🇭 Philippine average: 4.0–4.5 hrs/day (conservative baseline).
Raw geographic potential: 4.5–5.5 hrs/day.
Using 4.0 hrs accounts for clouds, monsoon rain, panel losses, and degradation.
Use the Calculate button above to estimate PSH by region, orientation, and tilt.
External data sources:
🔗 Global Solar Atlas (World Bank)
🔗 NREL PVWatts Calculator
🔗 NREL Solar Resource Maps
🇵🇭 Philippine average: 4.0–4.5 hrs/day (conservative baseline).
Raw geographic potential: 4.5–5.5 hrs/day.
Using 4.0 hrs accounts for clouds, monsoon rain, panel losses, and degradation.
Use the Calculate button above to estimate PSH by region, orientation, and tilt.
External data sources:
🔗 Global Solar Atlas (World Bank)
🔗 NREL PVWatts Calculator
🔗 NREL Solar Resource Maps
₱
/kW
Installed cost per kW including panels, inverter, labor, permits.
Benchmarks: Residential ₱80,000/kW, Commercial ₱50,000/kW.
Better deals = higher ROI. Get multiple quotes!
Benchmarks: Residential ₱80,000/kW, Commercial ₱50,000/kW.
Better deals = higher ROI. Get multiple quotes!
₱
Additional costs: roof waterproofing, structural reinforcement, wiring upgrades, net metering fees, engineering studies.
Section 2 Results — PV System Output
PV Total Capacity
0 kW
Daytime PV + Battery PV
PV Equipment Cost
₱0
Total PV CAPEX
₱0
Daily Generation
0 kWh
Daily Savings
₱0
Annual Generation
0 kWh
3️⃣ Battery Storage
₱
/kWh
Lithium Iron Phosphate (LFP) battery cost per kWh.
Suggested: Residential ₱30,000/kWh, Commercial ₱12,000/kWh.
Users can adjust based on actual quotes. LFP batteries last 10+ years.
Suggested: Residential ₱30,000/kWh, Commercial ₱12,000/kWh.
Users can adjust based on actual quotes. LFP batteries last 10+ years.
kWh
Size of the battery system you want to install.
Enter manually or use the reference calculation below as guidance.
Set to 0 if you don't need battery storage.
Enter manually or use the reference calculation below as guidance.
Set to 0 if you don't need battery storage.
kW
Dedicated PV capacity for charging the battery.
This is additional capacity on top of your Section 2 PV Capacity.
Formula: Battery Capacity (kWh) ÷ Peak Sun Hours = kW needed for full charge.
This is additional capacity on top of your Section 2 PV Capacity.
Formula: Battery Capacity (kWh) ÷ Peak Sun Hours = kW needed for full charge.
kWh/hr
Reference only: Average power consumption per hour during nighttime.
Used to calculate a suggested battery size below.
🏠 Typical: 0.5-2 kWh/hr (aircon + fridge + fans)
🏢 Typical: 2-20 kWh/hr (security + servers + refrigeration)
Used to calculate a suggested battery size below.
🏠 Typical: 0.5-2 kWh/hr (aircon + fridge + fans)
🏢 Typical: 2-20 kWh/hr (security + servers + refrigeration)
hrs
Reference only: Hours you need battery power after sunset.
Used to calculate a suggested battery size.
Typical: Residential 8 hrs (10pm-6am), Commercial 12 hrs (6pm-6am).
Used to calculate a suggested battery size.
Typical: Residential 8 hrs (10pm-6am), Commercial 12 hrs (6pm-6am).
Reference Calculation (for guidance)
Required Battery (Load × Duration):
0 kWh
This is a suggestion. Enter your desired Battery Capacity above.
Section 3 Results — Battery Storage
Battery Capacity
0 kWh
Battery Cost
₱0
PV for Battery
0 kW
Daily Charge Capacity
0 kWh
Extra PV Cost
₱0
Battery Charge %
0%
Daily Battery Savings
₱0
Annual Battery Savings
₱0
Monthly Battery Savings
₱0
No battery configured — battery capacity is zero
4️⃣ Financing
₱
How much of the system cost you're financing. Leave at 0 for cash purchase.
Typical: 50-100% of total system cost.
Typical: 50-100% of total system cost.
%
Bank's annual interest rate. Typical in Philippines: 8-12%.
Personal loans: 8-10%, Commercial loans: 10-12%.
Personal loans: 8-10%, Commercial loans: 10-12%.
months
Loan repayment period. Typical: 60 months (5 years).
Longer terms = lower monthly payments but more total interest.
Longer terms = lower monthly payments but more total interest.
💰 Cash Purchase — No Financing
No loan costs. Your full monthly savings go straight to recovering your investment.
⚠️ Loan exceeds system cost. Your loan principal is larger than the total CAPEX. Consider reducing the loan amount to match the actual system cost.
📖 Narrative Summary Your Solar Story
📊
Ready to See Your Solar Story?
Generate a plain-language analysis of your solar investment: costs, savings, payback, and our recommendation.
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