David Perry

This is really quite scandalous... the key assumption that means rising oil demand is that EV sales share will be the same in 2050 as in 2024 in EVERY COUNTRY IN THE WORLD (except China+EU) 🤷‍♂️

You can't get the battery rebate unless you have PV 😀

But the economics and solar rebate setup are such that the extra cost of PV is very modest... can take advantage of batteries with DC solar inputs.

Saw one supplier offer unlimited free solar with every battery purchase!

Prepaid meters are indeed completely fucked and an insult to first nations communities

Not sure this is great policy, but it strikes me as very clever politics.

Turning negativity around almost zero solar feed-in tariffs into free power for others. No-one can hate that...

24. We oughtta be building more wind. Seriously, solar will get built anyway, but wind needs some help, and wind blows in the dark and in the winter. It doesn’t help that solar pushes down power prices and generates renewable energy credits (where relevant), which hurts wind farm economics.

5. Solar modules now cost 8.9 US cents per Watt (higher in US, India due to trade barriers). Solar panels are cheaper than ordinary fencing materials. For rooftop installs, non-module cost is still $0.50-3.00 per Watt, so further module price declines make little difference.

Amazing. High five!

There's a rare earth mine being developed on the other side of the state from me in Australia, and locals were pretty annoyed to find out "oh yeah, we'll be producing uranium concentrate too..."

Shiny!

This generic acetaminophen had an Amtrak ACS-64, four Amfleet 1 cars, a Conrail EMD GP15-1, and some Conrail rolling stock in it. The problem is more serious than I thought.

Yes, I assumed you're not just there for the catering.

👁️👁️

Ah yes, the standard "He Died with a Felafel in his Hand" clause.

Just made a few corrections to the gas industry billboard at Darwin airport.

You're welcome Australian Energy Producers.

Solar panels now cost peanuts (under 10 cents per W) in most of the world.

Carbon dioxide emissions in high-income countries are now falling, and there's reason to believe other countries will be able to develop much more sustainably than those did.

ourworldindata.org/grapher/annu...

Vienna tram with Melbourne team competing in tram bowling

Victorian government media release: Melbourne will host the next World Tram Driver Championship in 2027, bringing the global spotlight to the world’s largest tram network for the first time. This comes as the World Tram Driver Championship takes place this weekend in Vienna, where two tram drivers and their coach are representing Australia and competing against 24 other countries to take out the top spot.

🚋🎳🏆🤩World Tram Driver Championship coming to Melbourne in 2027! A chance to exchange ideas, learn from other cities, and a home ground advantage - what's not to like?!

Interesting! Heat loss surveys are essentially unheard of here in Australia except for very high spec builds perhaps.

In practice it means things are usually way oversized. It's not great, but installers figure complaints about undersizing are worse...

Do they propose+build any of their own network though? I thought theirs was all managed on behalf of others unlike Evie.

YouTube video by Hank Green Blind Ranking AI Logos by How Much they Look Like B-🕳️'s

Another one for the list.... www.youtube.com/watch?v=fIbQ...

Fucks sake, there really is no escape is there.

Your farm is lovely!

Getting entangled in a couch zipper would do it

NEW: The first evidence of a solar take-off in Africa☀️✈️

x33 rise in Algeria solar panel imports in the 12 mths to June 2025, compared to previous 12 mths.
x8 in Zambia
x7 in Botswana
x6 in Sudan
x3 in each of Liberia, DRC, Benin, Angola, Ethiopia

🧵

Looked into how much compute they use for seismic mapping? 😬

Wait, they're cutting them down to restore views?! Psychotic.

My favourite stat is that Australia’s domestic use is equal to that of the gas used to compress gas into liquid for export.

Watt equity? Australians deserve a Basic Energy Right This essay was first published in Australian Quarterly 95.3, Australia’s Longest running public affairs magazine, published by Australian Institute for Policy and Science AQ-95.3-JUL-SEP-2024…

Have a chat with Bjorn Sturmberg?

bjornsturmberg.com/watt-equity-...

We should do a conference for the dumbest hydrogen applications imaginable. Bikes. Vacuum cleaners. Camping lanterns.

A chart from https://docs.nrel.gov/docs/fy25osti/95135.pdf , sourced to the IEA as of April 2025, showing solar power as % of generation in different countries. This varies between over 25% for the Netherlands, through about 24% for Spain, about 14% EU average, about 8% for the US to almost nothing in Norway. Text says that the IEA reckons global is about 10%.

I do bloody love this chart. Who'd have thought, 20 years ago, that solar would be ~10% of world electricity generation by 2024 - and over 20% in some countries, rising rapidly in others?

Definitely not me. When I started this job I hoped to be part of a solution for maybe 1% of global electricity.