Power Distribution System Designer | Electrical Engineering in Kenya

Power Distribution Calculator

Get a head start on your electrical planning with our easy-to-use Power Distribution System Designer. Understand potential component needs for your home by detailing your loads – from lights and sockets to air conditioning and cookers. This tool generates an estimated Bill of Quantities to help you scope your project.

Power Distribution System Estimator

Important: This tool provides a basic estimate for informational purposes only. Electrical system design must comply with local codes and be performed by a qualified electrician. Consult a professional before any installation.

1. General Settings

System Voltage (V):

Estimated Overall Demand Factor: (Factor to account for all appliances not running simultaneously. E.g., 0.4 for 40%, 0.6 for 60%. Consult local guidelines or an electrician for typical values.)

2. Lighting Loads

Number of Light Points:

Average Wattage per Light (W):

Max Light Points per Circuit:

MCB Rating for Lighting Circuits (A):

3. General Socket Outlet Loads

Number of General Socket Outlets:

Max Sockets per General Circuit (Radial): (For ring circuits, this would differ significantly. This calculator assumes radial circuits for simplicity for general sockets.)

MCB Rating for General Socket Circuits (A):

4. Dedicated Appliance Loads

Fridge/Freezer Present

Fridge Wattage (W):

Fridge on its own dedicated circuit? (If not checked, fridge load is assumed part of general socket load and not sized separately.)

Number of Air Conditioning Units:

Average Power per AC Unit (W): (Each AC unit will be sized on its own circuit.)

Electric Cooker/Oven Present

Cooker Wattage (W):

Electric Water Heater Present

Water Heater Wattage (W):

5. Other Custom Dedicated Loads

Load Name (e.g., Workshop Tool, Pump):

Load Wattage (W):

Dedicated MCB for this load (A): (If MCB is selected, it overrides auto-calculation for this item.)