Reinier Zeldenrust

Co-founder @yourkuppa | Intelligence to power the energy transition, in any home | physicist, environmental designer, mediator

[Reinier Zeldenrust @rdzeldenrust]

@eurostar delays can happen but your information provision could really use improvement. It's now 20:01 and we're still in Brussels waiting for train crew, but your own train status page is still showing us leaving here 40 minutes in the past.

[Reinier Zeldenrust @rdzeldenrust]

@skalskip92 Amazing performance. Any chance it can do instance segmentation any time soon?

[Reinier Zeldenrust @rdzeldenrust]

@mwmoedinger This is an excellent list! Bookmarking for our upcoming renovation

[Reinier Zeldenrust @rdzeldenrust]

@Protons4B @robertjwhitney I considered one for my flat but I couldn't make the upfront cost work (versus an electric shower). Quite expensive and not cheap to install either.

[Reinier Zeldenrust @rdzeldenrust]

@JonathanWaxman1 Agreed the governments have done a good job with CfD and disincentivising coal, but it’s likely that would have happened under other govts too, with wind and solar getting cheaper. What’s the alternative history? Do we say ‘good job for not being a blocker’? (also, onshore wind).

[Reinier Zeldenrust @rdzeldenrust]

@mwmoedinger There's a great book, 'The Warm Dry Home', which looks at how humidity becomes an issue in older buildings, not because of design issues, but maintenance issues, like water ingress, condensation, blocked ventilation, and ground levels around the house. (https://t.co/XcZdqln72J)

[Reinier Zeldenrust @rdzeldenrust]

@MattZeitlin Big assumption: that the commute involves driving. If you're walking, cycling or even taking some form of subway / rail, it can be healthy and pleasant.

[Reinier Zeldenrust @rdzeldenrust]

@timothymortimer @betateach @heatpolicyrich @theheatinghub It's also worth keeping in mind that Swansea is very exposed to wind-driven rain and that the cavity is there for a reason. In less exposed areas, it's less of an issue. Exposure map here: https://t.co/YoDcECMYfP

[Reinier Zeldenrust @rdzeldenrust]

@AnnieLeymarie @PeteK_AQ Did you install it yourself or did you find a good installer? I'm keen to install something like this but struggling to find someone who knows what they're talking about.

[Reinier Zeldenrust @rdzeldenrust]

@Zapaman @EcoHome_Lab @EnergySysCat @Protons4B @LFE_Foundation @Openenergymon Yes, I'd love that too if it exists

[Reinier Zeldenrust @rdzeldenrust]

@Polycam3D I've actually done this in advance but found that rental companies care about tiny scratches that don't show up in the 3D scan.. This was two years ago, maybe I should try again with gaussian splats...

[Reinier Zeldenrust @rdzeldenrust]

@ETWriteHome I think about this all the time as well. It was so brilliantly named. (Also never went).

[Reinier Zeldenrust @rdzeldenrust]

@AnnieLeymarie @heatfutures @ZeroCarbonWorld @granddesigns @Kevin_McCloud @MLiebreich @nesta_uk @betateach It's changed a lot since the outrage started but yes - I agree, A2A is best for single room and should be explored more!

[Reinier Zeldenrust @rdzeldenrust]

@betateach @suburbanpirate @heatfutures @granddesigns @Kevin_McCloud @MLiebreich @nesta_uk @daveludlow Also, he could have looked up some of the numbers / principles in the article he links to (and wrote) (https://t.co/SnhK6e5JPY) which does get things mostly right

[Reinier Zeldenrust @rdzeldenrust]

@betateach @suburbanpirate @heatfutures @granddesigns @Kevin_McCloud @MLiebreich @nesta_uk @daveludlow I hope so, but it did look a lot like the article was written with a specific end goal in mind (sell infrared / electric heaters). If it was unconscious incompetence, it would surely be retracted

[Reinier Zeldenrust @rdzeldenrust]

@philipsargent @AbigailDombey 1) deriving consumption from a device's maximum output 2) using the thermal output of an ASHP as electrical consumption, ignoring COPs of 300%+ 3) equating single room heating with whole house heating 4) assuming 40% higher efficiency for IR when they are controlled on air temp

[Reinier Zeldenrust @rdzeldenrust]

@philipsargent @ACJSissons The 0.3012 there is the price per kWh of electricity, so he's not applied any COP as far as I can see.

[AGilhespy @heatfutures]

https://t.co/1sU3tnRxaz

The most irresponsible piece of home energy journalism ever written? This isn’t marked as an advertorial so I’m going to say yes @granddesigns @Kevin_McCloud you should be ashamed of yourselves (@MLiebreich @nesta_uk @betateach) h/t @rdzeldenrust

[Mahima S. @MahiTuna]

The incredible @CarolineLucas accepting her lifetime achievement award at @edie tonight - and reminding us that GDP is fundamentally flawed, and we should instead be measuring wellbeing #edieawards