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The Industry-Standard Solar Calculator.
Calibrated to EPRA Tariffs, Demand Charges, and Finance Act 2023 tax shields. Stop guessing. Start planning.
EPRA Calibrated
(Updated Oct 2025)
Physics-Based
(Global Solar Atlas Data)
Bankable Data
(Finance Act 2023 Compliant)
● CALIBRATED: EPRA [OCT 2025] DATA
KES
Exclude Demand Charges (kVA) if known. Enter variable energy cost only.
m²
Usable unshaded area. Approx. 7m² required per 1 kWp of solar.
Found on your KPLC bill under 'Meter Readings'. Leave blank if unknown.
Average monthly cost for diesel during blackouts.
Refer to Finance Act 2023 Sec 13(2) regarding Investment Deduction Allowance.
Select 'Method of Charge' as shown on your monthly KPLC slip.
Determines specific solar irradiation yield (kWh/m²/year) for your site.
What % of operations happen between 8am - 6pm?
Weekend non-operational days will increase the payback period.
Hybrid reduces generator fuel costs. Max enables off-grid night operations.
View Tariff Breakdown & Assumptions ▾
Fuel Cost Charge (FCC): 3.84 KES
Forex Adjustment: 1.65 KES
Demand Charge (CI1): 800 KES/kVA (Not Savable)
VAT: 16%
Error: Bill must be > 50k for Commercial.
Potential Annual Savings
KES 0,000
Effective Rate
Estimates assume 75% energy/demand split. Net of O&M.
View Engineering Assumptions ▾
Simulation Period: 20 Years
Grid Inflation: 5.0% p.a
PV Degradation: 0.55% p.a.
Yield Data: 1,340 - 1,780 kWh/kWp
System Losses: 15% - 20%
Exchange Rate: 129.5 KES/USD
O&M Cost: 1.5% of CapEx
Tax Shield: 50% Year 1 IDA (Finance Act 2023)
Battery TechLFP: (LiFePO4) 6,000 Cycles @ 90% Depth of Discharge
Exclusions: Demand Charge (kVA)
System Size
Optimized for max self-consumption without export.
ROI Period
Break-even point based on current inflation.
20-Year Net Benefit
Cumulative savings after recovering all CapEx.
Potential Annual Savings
Zero CapEx option (subject to credit check).
We respect NDA standards. Your data is encrypted and never shared with 3rd party installers.
DISCLAIMER: This feasibility analysis is a preliminary engineering estimate based on user-provided data and EPRA gazetted tariffs as of Oct 2025. It does not constitute a formal offer or performance guarantee. Solar yield simulation is based on Global Solar Atlas historical averages for the selected region. Actual savings may vary due to weather patterns, unshaded roof availability, and future regulatory changes. Final Quotation requires a physical site survey.
Why This is the Most Accurate Model in Kenya.
We don't use "Sales Math." We use Engineering Math.
1. The "Demand Charge" Truth
Competitors promise to wipe out your entire bill. We exclude Demand Charges (kVA) to deliver a conservative, bankable number you can take to the Board.
2. The "Tax Shield" Advantage
We apply the Finance Act 2023 Investment Deduction Allowance (50% first-year deduction) to show you the true post-tax payback period.
3. Real-World Physics
We pull location-specific data from the Global Solar Atlas 2.0 and model N-Type module degradation (0.4%/year) to ensure honesty.
