[RE-wrenches] PV-direct electric water heating

[Jay Peltz]

Hi Hilton

What controller did he use?

Jay

Peltz power

Sent from my iPhone

On May 14, 2013, at 5:22 PM, Hilton Dier III <hiltondier at gmail.com> wrote:

> A friend of mine lives off grid with PV and wind. He added a shunt-type controller to his battery bank and connected it to a DC heating element in his hot water tank. Below a set voltage the element is dormant. When the battery bank hits a high voltage (at the end of a particularly sunny day or during a windy spell) the element comes on. That way, instead of just a PWM shutoff and wasted energy, he gets some benefit.
> 
> I wouldn't deliberately install PV just for hot water, but in an off grid situation where the excess would go to waste, it makes sense.
> 
> Hilton
> -- 
> Hilton Dier III
> Renewable Energy Design
> Partner, Solar Gain LLC
> 453 East Hill Rd.
> Middlesex, VT 05602
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