> Governments have to wait for manufacturing capacity to spin up just like the rest of us do. Yes, but government can provide a demand signal far more clearly

> Governments have to wait for manufacturing capacity to spin up just like the rest of us do. Yes, but government can provide a demand signal far more clearly and immediately than the market can. That's what the Defense Production Act is for in the US. The lack of federal tax incentives for air source heat pumps is also an an issue. Frustratingly there is a 30% credit for ground source heat pumps, which are far less scalable because they require an expensive trench or well.