Comment on Solar panel costs have plummeted from $6 per watt in 2000 to just 12 cents today
moldy_rice@piefed.keyboardvagabond.com 4 days ago
At Bestway Cement’s plant in Chakwal, Pakistan, solar already supplies more than a quarter of the electricity used to make cement. The company has 26MW installed and expects to add another 6.34MW by the end of the year.
That’s pretty amazing. Building construction make up a huge part of our carbon footprint.
If we could get 100% green cement (and steel), it would significantly decrease our emissions.
davetortoise@reddthat.com 4 days ago
Steel is a lot more tricky as generally fossil fuels are burnt directly inside the blast furnace. There are a few alternative “green steel” processing routes that avoid this but iirc none of them are hugely competitive at the moment.
moldy_rice@piefed.keyboardvagabond.com 4 days ago
There’s definitely some in Germany. Iirc they use hydrogen generated from electrolysis