Some bodies came up with requiring newly built housing to have planned in a renewable energy source. The idea is that those who build are investing into the future already and gathered large amounts of capital anyway. The disadvantage is the creation of a mid-term disincentive for housing construction, so keeping the housing supply in control might be more crucial. This method is also slow.
Several thousand dollars (including labor) is not cheap. Now scale that to every house.
Still the cheapest source of energy long term but when you need to come up with the money up front it is expensive.
OK, now the argument makes more sense.
Some bodies came up with requiring newly built housing to have planned in a renewable energy source. The idea is that those who build are investing into the future already and gathered large amounts of capital anyway. The disadvantage is the creation of a mid-term disincentive for housing construction, so keeping the housing supply in control might be more crucial. This method is also slow.