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Solar & Battery Design Tools for Kenya Design Systems, Calculate ROI & Find Installers

ℹ️ Get quick estimates for solar and battery sizing, costs, and savings in Kenya using these simplified calculators. For more accurate, advanced calculations, use the full Photonik design platform.

Solar Design Kenya


Energy Usage

To choose the right solar system in Kenya, start by understanding your daily electricity consumption. The average household uses around 15 kWh per day, whilst energy efficient properties may use only half that.

Lowering energy usage before solar installation—via improved insulation and efficient appliances—often reduces required system size and enhances financial returns.

Typical energy usage per person per day in Kenya:

Low (Efficient)
~3 kWh
Medium (average)
~4 kWh
High (intensive)
~6+ kWh

Note: Actual usage varies depending on property size, building efficiency, climate, and appliances.

5 kWh 100 kWh
KSh /kWh
$ /kWh
%

lightbulb Note: These are simplified estimates. For detailed tariff inputs and advanced calculations, use the full Photonik app.


Solar System Sizing

A 3.9kW solar system would typically cover your average daily electricity consumption. Systems sized between 5.9kW and 7.9kW perform best, accounting for natural fluctuations in solar production.

A 6.6 kW system in Kenya generates approximately 30.5 kWh daily on average, with seasonal variation from 4.42 kWh/kW/day in June to 4.94 kWh/kW/day in March.

1 kW 20 kW

lightbulb We recommend 6.5 - 8.7kW, generating 50 - 100% more than you use.

A 6.6 kW system in Kenya can generate approximately 0 kWh annually based on local sun conditions.

Solar & Energy Savings


Calculate Heat Pump & EV Savings

Electrify your home by replacing gas heating, petrol vehicles, and other fossil fuel appliances with electric alternatives powered by clean solar energy. This delivers significant additional financial savings and substantial carbon emission reductions. Our calculator helps you compare costs and model the financial impact of switching to electric appliances and vehicles.

How Solar Reduces Your Electricity Bills

The calculations below show how your electricity bills change with solar. Your Old Bill of - per month (- annually) is calculated from your total energy consumption multiplied by the grid electricity rate. Your New Bill of - per month (- annually) accounts for solar generation, the percentage you use directly (self-consumption), remaining grid consumption, and feed-in credits for excess energy exported to the grid. This results in monthly savings of - (- annually).

Battery Storage Kenya


Solar Battery Sizing

A 6.6 kW solar system without battery storage achieves around 50% self-sufficiency in Kenya, with 50% still coming from the grid. Adding a 10 kWh battery increases energy independence to approximately 99% annually, reducing grid reliance to 1%.

Use Photonik's complete design tool for detailed battery savings and return on investment analysis.

0 kWh 30 kWh
lightbulb Tip

A 5kWh battery will make you about 0% self sufficient.

Energy Self Sufficiency Calculator*

*Note: This calculator provides simplified battery self-sufficiency estimates. For accurate per-hour simulations that account for solar generation patterns, consumption timing, battery charging/discharging cycles, and efficiency losses across all seasons, use the full Photonik design tool.

Panel Placement Tool Kenya


This is a simple panel placement tool that lets you quickly estimate panel count for a single roof area. Try Photonik for advanced features:

  • Multiple panel groups
  • Custom roof angles
  • Panel orientation
  • Shade loss calculations
  • Panel selection (1000+ models)
  • Full integration with our design tool

Loading panel placement tool...

Solar & Battery System Cost Kenya


Understanding Solar & Battery System Costs

Solar installation costs in Kenya start at approximately KSh666,823 for a 6.6 kW system, with a 10 kWh battery bringing the total to around KSh1,344,841. Payback periods for solar-only installations average approximately 7.0 years, whilst battery storage extends payback but significantly improves energy independence.

The cost breakdown shows estimates for equipment costs, installation labour, and applicable taxes. Adjust system size and battery storage to see how it affects total investment and payback periods.