Free Solar Calculator · Kenya
Solar Sizing Calculator for Homes & Businesses in Kenya
Instantly size your solar panels, inverter, and LiFePO4 battery bank based on the appliances you actually use. Built for Kenyan sun hours, KPLC backup, and off-grid power — and delivered as a PDF report estimate you can share with your team.
Size Your Solar System
Get an instant estimate of your ideal solar setup. Choose your preferred calculation method below.
Enter Your Monthly KPLC Bill
We'll estimate your consumption at an average rate of KSh 27/kWh.
How Our Solar Sizing Tool Works
Three simple steps to a right-sized solar system — no spreadsheets, no guesswork.
1. List your appliances
Add lights, fridge, TV, water pump, AC, computers and any other loads with their wattage, quantity, and daily run hours.
2. We compute your demand
We calculate daily and monthly kWh, peak load in watts, and apply Kenyan sun-hour and efficiency factors to size the system honestly.
3. Get a branded PDF estimate
Download a PDF report showing your appliances, recommended panels, inverter, and LiFePO4 battery bank — ready to share or quote.
Got Your Sizing Estimate? Let's Make It Real.
The calculator gives you a solid starting point. But the real value comes from a professional site survey and a custom quote tailored to your roof, budget, and energy goals. Our engineers cover Nairobi, Kiambu, Machakos, Nakuru, and Mombasa.
Free Site Survey
No cost, no obligation. We assess your roof, shading, and electrical setup.
Detailed Quote
Itemized pricing for panels, batteries, inverter, installation & commissioning.
Warranty Backed
All systems come with manufacturer warranties and our workmanship guarantee.
Fast Turnaround
Most residential systems quoted within 24–48 hours after the site visit.
What the Calculator Sizes for You
NARE Energies uses Tier-1 components and Kenya-specific design rules, so the output of the sizing tool maps directly to a real-world bill of materials.
Solar Panels (PV array)
Monocrystalline panel count and total kWp, sized using ~5 peak sun hours typical of Nairobi, Mombasa, Kisumu, and most of Kenya.
Inverter capacity
Hybrid, off-grid, or grid-tied inverter sizing in kW, with a safety margin for motor start-up loads like pumps, fridges, and ACs.
LiFePO4 battery bank
Lithium iron phosphate storage in kWh with proper depth-of-discharge for a 10+ year service life — sized for your desired backup autonomy.
Engineer-reviewed estimate
Every PDF estimate can be converted into a full quote and free site survey by a qualified NARE Energies solar engineer.
Homes & Estates
Bungalows, maisonettes, apartments and gated communities across Nairobi, Kiambu, Machakos, Nakuru, Mombasa and beyond.
SMEs & Commercial
Shops, offices, schools, clinics, farms, lodges and workshops looking to cut KPLC bills and survive power outages.
Off-grid Sites
Rural homes, boreholes, telecom towers and farms with no grid access — sized for full energy independence.
Backup Systems
Hybrid systems that ride through KPLC blackouts and load shedding while still charging from the grid when needed.
Solar Sizing FAQs
Everything you need to know before sizing your solar system in Kenya.
Ready to Stop Relying on KPLC?
Thousands of Kenyan homes and businesses have already switched to solar with NARE Energies. Get your free site survey and a no-pressure quote — then decide if solar is right for you.
Serving Nairobi, Kiambu, Machakos, Nakuru, Mombasa & beyond ·+254 716 092 899