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What powers Hawaii at night?
by testfoobar 3y ago
What powers Hawaii at night?
- nicoburns 3y agoI mean, you're commenting on a post about a battery which can help to solve this problem (albeit this battery alone probably doesn't entirely solve it).
- ceejayoz 3y agoPlenty of oil. https://en.wikipedia.org/wiki/Energy_in_Hawaii https://en.wikipedia.org/wiki/Energy_in_Hawaii Coal was only a small percentage of the energy mix in the last decade. Can we move on from the tired old "haha idiots forgot about night time" slam on renewable energy yet?
- rootusrootus 3y ago> Can we move on from the tired old "haha idiots forgot about night time" slam on renewable energy yet? Not likely. Identity politics never goes out of style.
- bequanna 3y agoWell, it’s a bad argument made that way, I agree. But let’s at least be honest about the necessity to massively overbuild intermittent sources (and expensive storage) to provide reliability when we compare $/MWh.
- ceejayoz 3y agoAn honest discussion of that should probably include the ecological and health impacts of coal, and the ongoing dramatic decline in cost to add new solar/wind capacity. It's cheaper even factoring in variable production, and this battery project is part of how you address intermittency. https://commons.wikimedia.org/wiki/File:3-Learning-curves-for-electricity-prices.png https://commons.wikimedia.org/wiki/File:3-Learning-curves-fo...
- gottorf 3y agoI don't know where that linked dataset is from, but almost every claim I've seen for the LCoE of wind/solar being lower than any fossil fuel source excludes the cost of energy storage. Latest estimates[0] put solar and wind roughly at par with combined-cycle gas plants, but without the cost of addressing intermittency. Plus, it would be probably unwise to extrapolate the current downward trend in costs for the relatively new technology (meaning early in its marginal cost curve) of utility-scale solar and wind that it would continue to get much cheaper. The two factors combined would suggest that current energy policy in Hawaii is likely to result in increased costs for the consumer down the line. [0]: https://www.eia.gov/outlooks/aeo/pdf/electricity_generation.pdf https://www.eia.gov/outlooks/aeo/pdf/electricity_generation....
- ceejayoz 3y ago> I don't know where that linked dataset is from Scroll down a bit under the graphic. https://ourworldindata.org/cheap-renewables-growth https://ourworldindata.org/cheap-renewables-growth (which has some more dramatic charts, and a lot of explanation)
- bryanlarsen 3y ago2019 numbers: https://www.nrel.gov/news/video/lcoss-text.html https://www.nrel.gov/news/video/lcoss-text.html California has contracts with 8 Minute Energy to buy energy from their solar+storage plants for 4 cents per kWh.
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- ijhuygft776 3y ago> Can we move on from the tired old "haha idiots forgot about night time" slam on renewable energy yet? maybe if they move to volcano power plants
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- TheCoelacanth 3y agoDo you think batteries stop working at night?