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We don't have billions of people living in the wilderness. And technology has reached a price level where off-grid solar is actually an affordable and superior
by crote 3y ago
We don't have billions of people living in the wilderness. And technology has reached a price level where off-grid solar is actually an affordable and superior alternative to propane and diesel for household use in rural Africa.
- amluto 3y agoHeat pump heat, in the wilderness or otherwise, is about 4x as efficient as resistance or fire. This is somewhat silly, since a gas-fired heat pump can be very efficient, but gas-fired heat pumps are quite rare. (California has a pricing/policy problem here, IMO. Electricity is absurdly expensive, gas is somewhat reasonable, and the result is that electric heating is not nearly as economical as it should be.)
- semi-extrinsic 3y agoGas-fired heat pumps are neither economical nor efficient for single-apartment or single-house systems. Internal combustion engines with shaft power output of 1-2 kW are inefficient, loud and maintenance intensive. They can start to make sense from around 50 kW heating/cooling capacity and upwards, so the smallest units are suitable for 8-15 apartments depending on size.
- treflop 3y agoYeah but the article is just about batteries and someone asked to see a graph about energy density. Plus they asked about airplanes and somehow you made it about cars.
- earthling8118 3y agoThe person you are responded to did not make it about cars. They were responding to someone talking about cars