@siracusa The Private Cloud Compute software stack is not only distributed to security researchers, but to the general public: https://security.apple.com/documentation/private-cloud-compute/virtualresearchenvironment
@bitprophet @offby1 I’m super basic so I enjoy all the straightforward platitudes of the Death series. Meanwhile I find Rincewind insufferable. The only good Wizards books are the ones that don’t involve him at all.
@helge @pasi X-to-grid is worth it in some places depending on the electricity market. Here in the shoulder seasons a 30-min time of use tariff can vary by upwards of 20p/kWh over the course of a day. That allows a very valuable arbitrage if you have the storage!
As for the roof, yeah, I do […]
@pasi Yeah, I get that. In general the thing that’s economically interesting in those circumstances is battery storage. People tend not to think of it, but batteries by themselves are useful for tariff arbitrage. I suspect wider use of vehicle to grid will get more of this happening, but you can […]
Incidentally; my best day with this array was 23kWh of generation. That’s a huge amount of power: more than many households use in a day. And it’s not that big an install!
But I’m still a solar booster. Right now I’m getting quotes to double the size of the system, to 7kW, and quadruple the battery size.
With that I’ll move to a time of use tariff, because a 20kWh battery means I can go an entire day without grid usage in the shoulder seasons and summer. Winter […]
I think this is a useful chart, because it reveals the fundamental challenge the UK faces with renewables; and so the importance of rounding out with wind and storage.
My generation comes overwhelmingly in the summer, where I can nearly zero out my consumption […]
[Original post on hachyderm.io]
So the economics.
We exported 470 kWh. Our supplier (Octopus) pays us 15p/kWh, so they paid us £70.50 for our exported electricity last year.
Our supplier charges us a unit rate of 26.06p/kWh for our imports. We therefore saved £695 from our directly consumed electricity.
We consumed 9000kWh […]
Last year; the panels generated a total of 3,300 kWh: 28% of our consumption.
(As a sidebar, 3.6kW is the largest solar array you can install on your roof without getting grid operator permission, so it’s a common size)
For folks with angled roofs in London, you’d probably do better than this […]
On the “flat” roof, we have 12 400Wp panels. They are laying flat, but the roof is slightly cambered for drainage, so 6 are facing 3 degrees SSW and 6 are facing 3 degrees NNE.
These are wired to a 3.6kW inverter, because there was no way these panels would generate more than 3/4 their rated […]
For context, Ofgem thinks the average 2-3 bedroom house in the UK consumes 11,500 kWh of gas and 2,700 kWh of electricity annually: a total of 14,200 kWh. So we’re already below this: the heat pump is a major reason why, even though the property is quite poorly insulated.
As a sidebar here […]
The home is entirely electric. Heating is from an air-to-air heat pump, hot water is from an immersion heater (big kettle), ovens and stovetop are electric and induction respectively. Unusually for the UK we have a heat pump tumble dryer; and we use it religiously because it keeps humidity under […]
First, the home. We live in a top floor flat (condo for Americans) in London. The flat is about 1400 sq ft (130 sq m) of interior space on a single level. 3 bedrooms, 2 bathrooms. Built in the 1960s so it has uninsulated cavity walls, but we did retrofit substantial insulation to the flat roof […]
It’s early in January and the sun is out so my mind has turned to rooftop solar. Time for a retrospective on my rooftop solar install in the UK.
The UK is typically regarded as a poor location for rooftop solar compared to the rest of the Anglophone world, or much of Europe. That’s true: Spain […]
@designatednerd @simon Just a longer process. I like using a chatbot style model to chat through an idea and then get _it_ to write the seven paragraph prompt.
I firmly believe the two most comfortable wide-body aircraft for passengers are the A380 and A350.
@offby1 I got burned by that last week too. I had to temporary lift the “no internet access for my TV" settings in the router firewall so I could log in on the smart TV that I have enforced to be dumb.
@glyph Absolutely true. The other reality of DoS attacks is that they tend not to be launched in a drive-by fashion: they tend to be targetted.
@glyph FWIW I agree with all of this. I think these categories of protocol attack are theoretically interesting, but mostly are relevant for servers without “protection”, by which I mostly mean no load balancers or other frontends. I don’t think most folks deploy Twisted that way, so in some […]
Hey folks, if you’re running swift-nio-http2 we recommend you update to 1.38.0 as soon as possible. NIO defends against the new MadeYouReset attacks out of the box, but we have added some belt-and-suspenders defences to mitigate more sophisticated versions of the attack. These are available in 1 […]
Gosh United’s Basic Economy is terrible. Definitely a product the airline fully does not want you to buy.
On behalf of an entire continent I feel very comfortable saying: get fucked. https://www.theguardian.com/us-news/2025/jul/26/trump-tells-europe-to-get-your-act-together-on-immigration-before-us-eu-trade-talks
It’s rare to see a talk that so effectively demonstrates not just the tools for performance analysis, but the approach that leads to good results. This is a talk I wish I’d thought to give, but Matt absolutely crushed it. Comfortably my favourite session of WWDC 25 […]
@atpfm Relevant to the Cursor support chatbot blowup, Air Canada lost a court case on this: https://www.bbc.co.uk/travel/article/20240222-air-canada-chatbot-misinformation-what-travellers-should-know
I’m a touch surprised that I can’t find any off-the-shelf examples of a fused spur with an integrated Shelly. I have found two: one is a relay without energy monitoring, and the other is a subscription service. What am I missing?
Hanging out at QCon today. Come find me if you want to chat about Swift, memory safety’s services development; or anything else!
@matthew We're hybrid: 3 days a week in the office (Tues/Weds/Thurs), plus the option for a few remote weeks a year.
Want to work on server-side networking in the Swift programming language at Apple? My team has multiple positions open, at various experience levels: https://jobs.apple.com/en-gb/details/200590921/software-engineer-apple-services-engineering?team=SFTWR. We're hiring senior and junior positions […]
Alternative photo community using activitypub called Vernissage if anyone wants to try. Since it uses activitypub it can interact with Mastodon, Pixelfed & others Angular, Swift, PostgreSQL, Redis, S3 ObjectStorage
Alternative photo community using activitypub called Vernissage if anyone wants to try. Since it uses activitypub it can interact with Mastodon, Pixelfed & others Angular, Swift, PostgreSQL, Redis, S3 ObjectStorage
Alternative photo community using activitypub called Vernissage if anyone wants to try. Since it uses activitypub it can interact with Mastodon, Pixelfed & others
Angular, Swift, PostgreSQL, Redis, S3 ObjectStorage
#fediverse #activitypub #photography #angular #swift #postgresql #redis #mastodon
The morning after. Feels surreal and humbling.
