| ▲ | Ndymium 5 hours ago | |||||||||||||||||||||||||||||||
This is essentially what a ground source heat pump system is. Except instead of a sealed water tank you just make a tall hole that fills with water and the sun will warm it for you during the summer automatically. 1800 kWh is very little. We use around 12000 kWh and our neighbours' new house uses around 8000 kWh annually and most of that is heating. I'm not sure how many houses can hit 1800. | ||||||||||||||||||||||||||||||||
| ▲ | nandomrumber 3 hours ago | parent | next [-] | |||||||||||||||||||||||||||||||
A ground source heat pump (also geothermal heat pump) is a heating/cooling system for buildings that use a type of heat pump to transfer heat to or from the ground, taking advantage of the relative constancy of temperatures of the earth through the seasons. | ||||||||||||||||||||||||||||||||
| ▲ | Maxion 3 hours ago | parent | prev [-] | |||||||||||||||||||||||||||||||
Heath energy required != electricity requirement. A modern house in Finland needs around 15-24kWh a year of heat energy if it's well insulated. On the higher end for big + northern houses, and less if you're smaller and further south. Some get this energy by burning wood, others with heat pumps, and some with direct electricity. | ||||||||||||||||||||||||||||||||
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