Program writer for a respectable software company. @ThatcherUlrich@mastodon.world
Brooklyn and/or Oak Bluffs
Joined October 2012
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Heat pump performance part 3: heating season is over!
Mitsubishi mini-splits in Brooklyn: COP=3.25, avg temp 42.4F, min 10F
Carrier ducted in MA: COP=2.24, avg temp 43.3, min -3F
Read on for background, and a dodgy but fun vendor-vs-vendor COP vs temp chart
But how do we win? Can you encase them all in concrete while you're there?
Thatcher Ulrich retweeted
a Portrait of Tenochtitlan, my 3D reconstruction of the capital of the Aztec Empire is released!
I've been looking forward to this for a long time, and I am really curious what all of you think.
Take a look:
tenochtitlan.thomaskole.nl
#tenochtitlan
Thatcher Ulrich retweeted
I build on recent @Jacob_Mays @IEEEorg paper, which makes compelling case that most US interconnection (“IX”) processes are internally inconsistent & violate basic principles of efficient markets. Problem starts w/ insufficient consideration of redispatch & curtailment: (5/14)
Epic thread on passing the Inflation Reduction Act
Thatcher Ulrich retweeted
Last fall I visited Helsinki, a city where crash deaths have fallen sharply (including a year without any ped/cyclist fatalities at all).
I asked an urban official what role technology has played in his city's safety success. His answer: "Zero. We simply slowed down cars."
Thatcher Ulrich retweeted
When someone tells me they "hate" getting kicked in the testicles, I ask them "when was the last time you spent 10+ minutes having someone boot you in the nuts?"
The answer is basically always "never"
New to me: balcony power plants
Basically two panels and an inverter, plugged into a household outlet
Thatcher Ulrich retweeted
Germany’s power mix boasts more renewables, lower spot market prices – despite nuclear exit pv-magazine.com/2023/07/04/g…
PureCycle Technologies has now produced virgin-quality polypropylene pellets from its first commercial-scale recycling plant.
Polypropylene is used to make food and soap containers, carpet, etc and is versatile but (until now) not readily recyclable.
sustainableplastics.com/news…
Cooking ramen on propane range, vs historic wildfire smoke (to be fair we didn't get it as bad as other places)
Thatcher Ulrich retweeted
HAPPY ATB DAY! What is ATB Day, you ask? Well, it's the most magical time of the year for energy geeks. The National Renewable Energy Lab publishes the Annual Technology Baseline (ATB) every year covering a whole bevy of generation technologies. Let's take a look! 🧵
#ATBday
Thatcher Ulrich retweeted
Not sure about "best", but shachaf.net/papers/ has a list of papers I've saved because they were interesting, including year information -- most of them are older than the past couple of years, but the recent ones might be relevant.
Island-eye view of @VineyardWindUS construction projects. New marine terminal, next to local oil+gasoline distributor. Workforce housing (I think?) under construction across the street, looks like it will be resilient to sea-level rise, ha
Thatcher Ulrich retweeted
The first blades for @VineyardWindUS, America’s first commercial scale #offshorewind project, arrived today in the Port of #NewBedford. Yes, that’s how big they are. – at New Bedford, MA
