STORING YOUR ELECTRICITY

Is the time right to start storing the energy produced by your renewable technology system? Sustainability expert Tim Pullen does the maths

The idea of storing the electricity produced by your solar PV (photovolatic) array or wind turbine has gained quite a bit of traction in recent years, driven mainly by the falling FiT (Feed-in Tariff) rate – now less than 4p/kWh, but once as high as 50.67p/kWh* – and the rising price of grid electricity. Selling surplus electricity to the grid will bring in around 5p/kWh but the electricity we buy from the grid will cost around 15p/kWh. So it would seem to make sense to store that electricity on site for use, and buy less from the grid. Types of Battery If we think about battery storage systems we probably think of lead-acid batteries, like we have in the car. There are still a few of those about but most…

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Homebuilding & Renovating (Digital) - 1 Issue, June 2018

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