You can get low voltage (12v, 24v or 48v) heating elements for water heating tanks to act as a dump load for off grid houses, sending electrons back on to the grid is a better use of the energy but for off grid houses you only have so much battery and need to either shut down the turbine or dump the extra energy so heating water does work well.
If you wanted to heat your house this way get a heat pump and use that as your dump load, phase change material is a great way to store energy, so running a freezer full of water would be cheap example of this as it takes 3 times the energy to get water that last degree to get it to freeze so it's a good energy storage medium, or on a larger scale get a farm milk bulk tank and fill it with water and connect it to your heat pump for heating or cooling, altho for either of these a dual heat pump would work best so in the winter you pump heat in to the tank from the outside then as you need it you pull heat off that tank of water and the extra heat radiates in to the house, in the winter you do the same thing.
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