Undeniably good news from the government this. It will create jobs, drive demand, make homes warmer and healthier, cut bills, and reduce emissions. Moreover it simply has to be done to get to net zero emissions, so best done now. https://www.businessgreen.com/news/4017425/significant-payment-chancellor-unveil-gbp3bn-green-building-upgrade-package

Inevitably, there are questions. The biggest one is what happens after year one. The Treasury has called it a "significant down payment" on its long term energy efficiency strategy. More will have to follow and let's hear no more about energy efficiency being 'boring'.

The other big question is this the most efficient way to do things? Do we want to do insulation and glazing and have to go back and do whole house upgrades in 10 years? As such the energiesprong-style trial is one of the most important parts of this announcement.

And let's be honest, there are going to be execution questions here. That £2bn could go very, very fast leaving lots of people missing out (remember the Green Deal grants). Anyone with any sense and a slight draft will be logging on as soon as the scheme opens.

Will the approved suppliers all be sufficiently high quality? No one wants cowboy builds/green home fraud headlines.

Most important of all, £3bn is great, but it is not Germany's €40bn. It is vital similar announcements on every aspect of the net zero transition follow ASAP.

But all that being said, this is great news. It is a blunt instrument and it is vital that longer term funding and more ambitious standards follow. But this is the kind of ambition and commitment that could make a green recovery a reality.