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No. Thats the second thing to do. The first is to get wrecked drinking Champagne.

That has been know for at least 2 decades, why very little time is spent on it on Renewable Energy courses. It has been cheaper, for at least a decade and a half to just install wind and solar, which do not need CCS at the point of generation. In 2025, the UK's Per Capita CO2 emissions was 4.53t. World Average was 4.73t. https://ourworldindata.org/grapher/co-emissions-per-capita?tab=table

I have an email from the planning department saying they don't operate CIL. But I will double check - that was a year ago. Any other 'must dos' welcome!

You're absolutely right - the air tightness is surely a major opportunity here (there's a limit to the solar we can install) and attention to that and building it into the tender process will be important. We haven't quite decided how much to do ourselves, but focusing on a few critical points is likely to get the best payoff, I suspect. I will start a thread in due course on the environmental aspects and read up on the rest of the forum for some of expertise from the community.

First thing to make sure is correct is your CIL entitlement.

Well, incoming in that case! Thanks - looking forward, and challenge accepted!

There is you problem, it will cost you nothing on here to ask questions.

He also thinks carbon capture is a waste of time and is very pragmatic about what is possible. Not aiming for unachievable dreams regardless of cost.

Don't believe those figures. Just what is he suggesting that costs £4000 to get just 1 SAP point. I suspect your best bang for your buck improvement would be solar PV, very cheap now, and if you can't have it on your roof due to conservation area, ground mount it. The as built result will largely depend on details, like your actual air tightness test. That is mostly down to detail, not cost. How much will you be doing yourself? If you are doing a lot, you can take the time to get it right at little cost.

Are you sure? He is big into heatpump and renewables.

I suspect those words will come back to haunt you, especially if you buy into one of his price plans, buy some kit to take advantage of the ToU, then find he pulls the deal at very short notice.

We might do - it's just based on our current SAP. We're at 86. Apparently, according to our consultant, it'll be £4,000 - £6,000 (saving £75/yr) to get one more point to get to 87 or to to get to A (102) it'll cost £15,000 - £25,000 (saving £652/yr). So taking the lower numbers break even conservatively in 53 years for one extra point, or 23 years to get to 102 (without factoring in the cast of the debt). I care a lot about the environment (I work tackling climate change), but I'm not sure why I'd bother doing that...! But we'll see where we get to now we can move to Stage 4.

Hi and welcome! It looks like an exciting project. Good luck!

I was looking for a quote for Sunflex SF80 sliders and a glazed gable above, but the supplier suggested going with Hyline Hy50 instead because they will do the sliders and glazed gable with an integrated structural top beam to avoid having to install a separate structural element which I'd need to do with the Sunflex. I searched but came up blank - anyone been quoted on them or had experience with them?

I bought mine from here https://www.made2measure.co.uk/glass-balustrades/?mh_keyword=balcony glazing system&gad_source=1&gad_campaignid=12052583245&gbraid=0AAAAADv1etNOPVsB6l6fBCLWEMa72dGOx&gclid=Cj0KCQiAnJHMBhDAARIsABr7b844WI-m1FTO32K-Blto5enxEUMAp2YkU1fodvh8LLpF7khwS1hhwYMaAhGSEALw_wcB Go to the useful information section, all the design certification is there, with approved mounting schemes for the various products etc. Just bought the appropriate hardware, downloaded the certificate and structural engineer signed it all off. Zero thought, fully approved, simple.

The best price I could find for two big solar veluxes recently was roofingoutlet.co.uk (when factoring in the flashing kit and vapour control membrane). They came direct from Velux though.

I normally run 20mm cross battens. Spacing them to take the plasterboard sheets.

How do you know that the fixings and the beam will pass the 25mm deflection test at 0.36kn/metre at 1100mm? I assume this needs a calc from an engineer or the beam to be specced for this purpose?

Well done. Buy why only aim for an EPC B. Aim higher, not hard to get an A.

We need Octopus's boss to replace Ed Milliband. THEN we might get some sensible policies. I have not heard anyone talk so much well reasoned sense for a long time.

If you don’t want to lose the extra inch, you could use resilient bars. If there’s a floor above you’ll kill two birds with one stone; levelling and avoiding the humps, and getting sound sound deadening. Defo not a good thing to try and screw PB to two different levels, with screws so close together. The screws will just keep breaking through and the plasterboard stands a chance of snapping too. Resilient bars will drop you about 15mm iirc.

Video showing a bit more of what’s in the ceiling IMG_8617.mov .

You’d convert MDPE > copper in a straight fitting, then go into a hep2o 90° bend. Not convert with a bend. I’ll watch the vid shortly. 👍

If you prefer the better pictures that are on radio, then this was on earlier, it is about dynamic pricing in general, though does have someone from Octopus on it. Octopus spend a lot on this sort of soft selling. https://www.bbc.co.uk/sounds/play/m002qthh

have you ran a straight edge across the i joists, are they perfectly flat? Mine weren't, out by a few mm here and there. So I ended up cross battening and packing to take out the undulations, this also removes hangers and nail heads from the equation.