The achilles heel of most renewable energy generators like solar air heaters is reliability but also energy storage.
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In reality there are a couple of factors which make it improbable.
Per 250w solar panel a daily average of 1000w is produced.
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Storage has long been a stumbling point for renewable energy but our prototype thermal battery is able to store and as required release solar energy without reliance on sunlight at all times.
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Storage heaters work by storing heat generated by cheap night time electricity and releasing this heat during the day most storage heaters are wall mounted and look a bit like radiators.
Let s say for the sake of easy maths that you have a storage heater that uses exactly 1000w of electricity per hour.
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They work by drawing electricity over the course of a few hours at night and storing it as heat in a bank of clay or ceramic bricks to use the following day.
Solar panels absorb the sun s heat and generate energy.
The wind doesn t always blow and the sun doesn t always shine or more accurately we can t always see it.
So the main drawback of solar air heaters is that you only get heat when the sun is shining.
In principle using solar panels to charge storage heaters is an excellent idea to stay green and cut running costs.
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Storage heaters are electric heaters that store thermal energy by heating up internal ceramic bricks during the night and then release heat from them to keep your home warm during the day.
Storage heaters are primarily designed for customers who are on a time of use electricity tariff such as economy 7 and pay a cheaper rate for their energy overnight usually 12pm 7am.
For an entire night s worth of charging your storage heater will need 6000w of electricity.
Or six 250w solar panels worth of energy.
Charging storage heaters with solar panels also means taking a charge during the day time instead of at night which can further complicate matters if you don t have a battery bank backup in your solar installation.