1) Average running costs of family car as low as 3p per mile ( based upon charging a 30kWh battery at day rates of 15p per kWh) Charging at off peak rates the running costs can be reduced to 1.5p per mile ( based on an example of Nissan Leaf with a real driving conditions and a vehicle range of 150 miles for 30kWh full charge. 2) Installing Solar PV can lead to a running cost of almost zero, locking down vehicle costs for the next 20-25 years. This will future proof energy and running costs despite the inevitable price hikes from the energy companies e-on, edfENERGY, British Gas, Centrica, SSE, npower, Scottish Power and all the other independent suppliers.3) Perrin Energy can help you move towards a cleaner future by installing your Solar PV, battery storage , EV car charging needs.