Keith Alexander

They also said manufacturers might not include eg circulation pumps in their measurement of electricity demand.

Look at the Best Performing Heat Pump Systems in Real Time Podcast Episode · BetaTalk - The Renewable Energy and Low Carbon Heating Podcast · 09/11/2023 · 58m

podcasts.apple.com/gb/podcast/b...

@trystanlea.bsky.social and @glynhudson.bsky.social make some interesting points here that HP makers probably use sensors that are good enough to run the heatpump but not as accurate as their sensors spec’d to provide measurements.

The 7kw vaillant heatpump at my old house averaged a (self reported) SCOP well above 4, which I thought was pretty good. But this one (a bigger 10 kw model) is reporting a running average of 6 so far! (We’ve only been heating with it 2-3 months, but I’m still impressed/skeptical).

Artificial intelligence and data centres Australia is building domestic capabilities in artificial intelligence. Home chevron_right Do business with Australia chevron_right Explore a sector chevron_right Technology chevron_right AI and data centres On this page Helping to power digital transformation Australian AI Industry Capability Report Why buy Australian AI Why invest in Australia Strategic location as a data centre hub Australia emerges as an AI powerhouse How we can help Success stories Incentives, grants and support Snapshot - Data centres Snapshot - Artificial Intelligence Strategic direction Industry and research ecosystem How Austrade can help Helping to power digital transformation Australia is becoming a regional data centre hub, and a global leader for artificial intelligence (AI). We are helping to power digital transformation in the Asia Pacific and the adoption of artificial intelligence technologies scross broad sectors. Our economy hosts an outsized AI industry, including over 1,100 private AI companies. Adoption of AI is strong across society, with over 400 public firms developing or deploying AI solutions. Our vibrant AI ecosystem and proximity to Asia means we are becoming a service provider for the region, with AI-related patents quadrupling over the past decade. Sydney and Melbourne are both top-ten data centre markets in the Asia-Pacific region. Australia’s abundance of renewable energy resources means we are a great location for regional, green data centres. This includes supplying Asia via subsea cables. Australia aims to become a global leader in developing and adopting trusted, secure and responsible artificial intelligence, led by the National Artificial Intelligence Centre. Australian AI Industry Capability Report Unlocking potential with Australian AI, an industry capability report on Australia’s capabilities and expertise in artificial intelligence, highlights the achievements of Australian companies in the growing sector. Austra…

HEY FRIENDS!! Did you know that Australia - #2 in the world for data centre investment - is now formally missing its climate targets thanks in large part to the resulting surge in power demand?

It's massive news - @crikey.com.au let me NERD OUT to explain why:

www.crikey.com.au/2025/12/04/d...

nope!

I’ve read of (experimental?) retrofits where they’ve pumped the solum full of EPS beads and closed off the air bricks.

I guess it’s usually not good to extend conditioned space with timber below the DPC.

and track the changes to heat loss and humidity as I go.

Definitely. The floor doesn’t feel all that cold at these temperatures, but the draughts make the room feel a bit uncomfortable. What I’d like to do next is seal the rest of the ground floor from beneath with a VCL membrane before adding insulation, hopefully over this winter,

Very neat. I added tongue and groove woodfibre boards underneath the joists instead of the breather membrane, but it was pretty tricky and very time consuming, especially around pipework, and I probably wouldn’t do it exactly like that again.

The kitchen floor insulation was definitely high effort, but even in this relatively mild weather (outside temperature 6-7°C, thermostat temperature 18.5°C) it’s keeping the floor 3.5°C warmer than the uninsulated dining room floor. #retrofit

YouTube video by Glyn Hudson Installing a SCOP 5 Heat Pump in My House - Design, Install & Monitoring

👏 @glynhudson.bsky.social
youtu.be/Tz0W9xCBxS0?...

Former Dulwich pupil says Farage told him: ‘That’s the way back to Africa’ Exclusive: Yinka Bankole says he felt compelled to speak out after Reform leader’s attempts to ‘dismiss’ hurt of alleged targets

Yinke Bankola says he was 9 when the sixth form Dulwich school prefect Nigel Farage, aged 17, asked him where he was from, then told him "that's the way back to Africa".
www.theguardian.com/politics/202...

I’ve had solar ~2.5 months now and the worst day so far came within 6 weeks of the best day, which generated 100x as much energy as the worst.

HPH392: What's the difference between good and bad retrofit? – with Marion Baeli - House Planning Help Marion Baeli, author of “Residential Retrofit,” offers hands-on experience of designing and retrofitting high performance homes. As well as drawing on her personal retrofit she shares the lessons lear...

Marion Baeli is my guest this week on the podcast. It's over a decade since the Retrofit for the Future competition but have the projects stood the test of time? And if they have, what is the difference between these retrofits and those in the ECO programme?

www.houseplanninghelp.com/392

It’s political correctness gone mad, you can’t call a spade a spade anymore, etc

Yeah, I think so, turned on the preheat. It’s got warmer anyway though. Seems to bring it up to where it can charge at 4-5kW. I can’t easily get to the battery to insulate it at the moment because we’ve piled the garage with stuff while moving 🙈

Is this even possible? COP of 6? #heatpumps

Thanks!

Unfortunately (we've still got lots of retrofitting to do) the heating just gobbles up energy, so the more I can get to run in the 15p/kWh periods, the better.

Oh sorry I misread and thought you were talking about boosting on a schedule.

I haven’t got the app running yet, but when I set it up like that via SensoComfort, it didn’t recharge during the midday cheap period because the cylinder temp was still just high enough, and then it quickly ran out in the evening “off” period. I’m trying out reducing the hysteresis from 5k to 3k..

Where on the in-house display?

so what happens is you use hot water during off peak, run out at peak, and then it won’t reheat.

I thought the hot water time planner would do this - top up the cylinder during the planned times so it doesn’t need to at peak time. But instead it will only reheat if the hot water runs out during the scheduled time,

What’s the best way to set a Vaillant sensocomfort to do hot water cylinder reheats in the cheap periods of a TOU tariff? (Eg @octopus.energy Cosy).

Still reeling from the Stanford report on Brexit. Reduced GDP by up to 8% and investment by as much as 18%. The UK Treasury would have £40 billion more each year if Britain had remained in the EU. Devastating self-immolation.

And still not a single mea culpa from the architects, many of whom continue to be regarded as sages by much of the press.

COP30 delivered mix of success and failure, but that is no success at all Belém Summit provided important progress, but the market signals were compromised by petrostate wrecking tactics - the onus is now on leading governments and businesses to deliver the climate action t...

Was just writing about precisely this. www.businessgreen.com/blog-post/45...

My plan was to use inditherm under my floor, which was available in the right size for my joists, but supply seems to have dried up, and if I have to cut Steico flex to size, that’ll be about 100 cuts just for the living room… which is a bit daunting.

How do you do the cutting? I’ve been using the Bahco insulation hand saws and a tape measure, which work well for small amounts, but I’d really like a more efficient system with some kind of jig to do things faster and more accurately.