A HUGE, narrative-breaking moment for the UK car market
New EVs are now cheaper than petrol cars on average, says Autotrader
Last yr CCC said price parity was due by 2028 – and it's already here
And EVs are already MUCH cheaper to run than petrol
It's borrowed from a family member, it's only done 68k miles, but it's got free supercharging 😁
It's borrowed from a family member
11 year old EV, still charges pretty quickly, and it's free 😁
Sunny fell run in Yorkshire,loving this weather 🤩
Same here, very sad to hear. He was so generous with his time and expertise, he helped us a lot in the early days of @Openenergymon, I still come across the odd NanodeRF still posting to our servers
Thanks, nice work! That's very impressive
NEW: A mega snow storm - SNOWPOCALYPSE - recently hit residents of Juneau, Alaska.
I spoke to heat pump owners there to find out how they coped. Their heat pumps did great, apparently!
www.thereengineer.pro/p/my-heat-pu...
Massive thanks to @trystanlea.bsky.social and @glynhudson.bsky.social for setting up HeatPumpMonitor.org, the excellent installers and to the people willing to share their data! Without you none of this would have been possible.
This is mine this morning, it was another cold night with more more snow
There's some cold temperatures forcast for the next day or two, if you have a heatpump with @openenergymon.bsky.social monitoring and the temperature is below freezing please consider running a max output test and submit the result to HPM 🙏❄️ youtu.be/K-H2aXf15DI?...
Here's a video documenting the design and install of this system youtu.be/Tz0W9xCBxS0?...
This is what is sounds like
First sprinkling of snow on our heat pump! It's been doing a great job keeping the house toasty warm, live monitoring data from this system is available on @openenergymon.bsky.social HeatPumpMonitor heatpumpmonitor.org/dashboard?id=748
Over 7 years in our electric campervan, this map only shows the last couple of years worth of trips, Electroverse didn't exist before then! youtube.com/playlist?lis...
Good monitoring data is very useful to help optimise performance, but knowledge of the physical system is often required to be able to identify issues
Ah yes, Electroverse is my favourite charging app
Rapid charging is similarly expensive in the UK, there are still savings to be made with off-peak home charging
Superchargers are also very cheap, this one is £0.14/kWh off peak with subscription 🤯
Coffee is also reasonable priced £1.48 for an espresso 😋
Loving the EV rapid charging prices in France, this is Ionity in a motorway services using @octopus.energy Electroverse app without any subscription £0.29/kWh 😀
Inversely, improving insulation to reduce the heat loss makes it easier to run at a lower flow temperature. As always, it's the design insulation and commissioning which dictates the performance of the system
Really great to see this work on how good heat pump installs can be. An average seasonal performance factor (sCOP) of 3.9 beats gas on running costs, even in the UK where the price ratio between gas and electricity is so bad.
Not at all, lot's can often be done to improve efficiency post install. Incorrect or suboptimal commissioning settings is where most efficiency is lost. Making sure whether compensation is enabled and reducing the curve is a good place to start
It's been great to be part of this project with @janrosenow.bsky.social @trystanlea.bsky.social to share the results from HeatpumpMonitor.org @openenergymon.bsky.social in a peer-reviewed paper 🥳
The overall highlighted HP performance is testament to the work of excellent installers 👏 🎉
It will make very little difference, since SCOP is weighted by heat delivered
This has also been the result of the analysis of the data from @openenergymon.bsky.social Heatpumpmonitor.org youtu.be/SiHtzDNWAo4?...
Heat pumps can work well in all types of houses, here's a case study of a heatpump in a large 17th Century listed house, it's one of the best performing heatpumps in the country www.viessmann.co.uk/en/reference...
I think it's impossible, there's only on system which has achieved scop 5 on HPM. To achieve scop 6 would probably require a mean flow temperature sub 25C when it's it's -3C outside, including DHW heating
COP of 6 is easily doable on a mild day, SCOP of 6 with an ASHP is impossible
