Bimble Solar Calculator

Our handy basic solar calculator, to give you a rough idea of how much power you use daily



PVGIS provides information about solar radiation and photovoltaic (PV) system performance for any location in Europe



Use EPEVER Off-Grid solar calculator tool below to estimate the required size of the  components such as Solar PV modules, Inverter and charge controller.


Wind by postcode

A wind report according to your location.


Energy Saving Trust

This tool provides estimates for fuel bill saving and financial payments you may receive by installing a solar photovoltaic (i.e. solar PV) system. These figures are based on information you provide, using a number of assumptions to indicate potential benefits. This is to help you decide whether a solar PV system is suitable for you.


Great Home

Use the energy calculator below to see how your actual annual energy consumption compares to the average home in your area. It covers England and Wales and includes a gas and electricity cost calculator:

For homes in Scotland see:


Solar-Rooftop Calculator

A simple guide for basic system sizing



DC Cable Sizing Tool

This online cable size calculator tool makes it easy to establish the correct size of cables for any DC power system. 

DC Wire Sizing Calculator - Round your results up to the next cable size


Voltage drop calculators




Alpha ESS Battery Storage Calculator

Calculate an approximate project return and payback period of your project with the Alpha ESS Battery Calculation Tool.


Victron Energy Apps and other downloads


Sterling Power battery app for their lithium batteries