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by toomuchtodo 700 days ago
Batteries installed on concrete slabs are easier and cheaper, there are only so many places pumped hydro is feasible.

https://news.ycombinator.com/item?id=40919052

2 comments

Batteries can also be installed basically instantly, with storage being added incrementally. Unlike a years long project of constructing a hydro battery before it enters operation.
NZ recently scraped Lake Onslow seasonal hydro storage. My estimate it was about 100x cheaper per kWh when compared with Powerwall.
Can you provide background and/or context as to how and why this decision was made?
New government (that Elon Musk himself congratulated) has terminated tons of projects and rolled back some laws:

- Removed EV subsidy

- Scrapped Lake Onslow seasonal pumped hydro storage

- Removed generational smoking ban (made it to 18yo like most countries)

- Gave 50% discount to heated tobacco products (aka IQOS)

- Gave a tip whose projects will be fast tracked

- Reduced housing insulation minimums

- Terminated new inter-island ferry project to replace aging ferries (tbh this one was getting out of proportion)

- Reintroduced tax interest write-off for landlords who rent their houses

- Removed free school launches for poorest country schools

Their goal was to end government spending, but giving $2b+ to countries richest people seems opposite.

And to give them credit here's couple of good things that will definitely help property market:

- Ability to import abroad-certified building supplies (atm there's a building supply monomopoly)

- Ability to build up 60sqm backyard homes without consent

- Densification plans

Oof. Good luck over there.