Future Homes Standard building reg changes

[flanagaj]

Has anyone researched the above to get an idea just how much it is likely to increase the cost of construction compared with current regs?

[Markuz]

Our council is developing a new local plan and are setting targets and is in consultation mode.

 

For example:

 

All developments will be required to contribute to meeting carbon net zero emissions by
2045. To achieve this:
i. All applications for residential development must include an Energy Statement which
demonstrates the following:
a) No on-site use of fossil fuels
b) Space heating demand of less than 30kWh/m2/annum
c) Overall operational energy use of less than 40 kWh/m2/annum
d) How on-site energy generation is maximised, equivalent to at least the onsite energy
demand (with a preference for roof mounted solar PV)

 

This  aligns with https://irp.cdn-website.com/bdbb2d99/files/uploaded/Task Force Report_STRATEGY_13Aug.pdf

 

I have to check what it will mean for extensions and retrofits, but I would imagine it will push up everything significantly.

[ProDave]

15 minutes ago, Markuz said:

c) Overall operational energy use of less than 40 kWh/m2/annum
d) How on-site energy generation is maximised, equivalent to at least the onsite energy
demand (with a preference for roof mounted solar PV)

This bit requires some joined up thinking.

 

For my house max overall energy would be limited to 6000kWh pa.  To match that with solar PV would require probably 8kWp of solar PV.

 

While I would have no objection to installing that much, the DNO may have other ideas.  I already know for just 1W over the  3.68kW allowed by default, there would be a network upgrade charge, and there is no guarantee that they would even allow 8kWp of solar PV.

 

So if that sort of requirement is going to become normal, then it also needs to become normal that DNO's will accept that much without punitive upgrade charges.

[MikeSharp01]

19 minutes ago, ProDave said:

While I would have no objection to installing that much, the DNO may have other ideas.  I already know for just 1W over the  3.68kW allowed by default, there would be a network upgrade charge, and there is no guarantee that they would even allow 8kWp of solar PV.

As things stand this seems to depend on several factors. A few of us have applied for and been granted more than 3.86 ( In our case 6.9kW) on a single phase. I think it might relate to pressure from HMG to get more PV and how many others are installing or have installed PV on your leg of the local sub station - which is kind of mad because although I might be granted 6.9kW because there is no uptake locally if, all of a sudden there is they could exceed the limit even capping the late adopters at 3.86kW.