Hot-water cylinder utilises surplus electricity from solar PV panels

Excess electricity generated by domestic solar PV arrays can be used by Heatrae Sadia’s Megaflow Eco Solar PV Ready unvented cylinder to provide free hot water. Surplus electricity that, for example, may be available during the day when the property is not occupied can be diverted to the cylinder rather than being sent to the grid.

To avoid any draw from the grid, a ‘buffer’ of energy will be retained. For example, if there is 2 kW of export power the controller will divert 2 kW to the cylinder’s immersion heater, leaving a 0.2 kW buffer.

Megaflo Eco Solar PV Ready will not affect payments from the Feed-in Tariff. Where an export meter is fitted, the benefits of Megaflo Eco PV Ready can still outweigh the costs of heating water directly from the grid.

A programmable timer enables electricity from the grid to be used when required, including taking advantage of economy tariffs.

A separate remote control, the Megaflo Buddy, enables settings to be controlled and modified; it also displays the energy and savings being generated.

For more information on this story, click here: August 2016, 162
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