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Power Earth

Renewable Energy Passes 30% of World's Electricity Supply (theguardian.com) 153

Renewable energy accounted for more than 30% of the world's electricity for the first time last year, according to climate thinktank Ember. The Guardian reports: Clean electricity has already helped to slow the growth in fossil fuels by almost two-thirds in the past 10 years, according to the report by climate thinktank Ember. It found that renewables have grown from 19% of electricity in 2000 to more than 30% of global electricity last year. Solar was the main supplier of electricity growth, according to Ember, adding more than twice as much new electricity generation as coal in 2023. It was the fastest-growing source of electricity for the 19th consecutive year, and also became the largest source of new electricity for the second year running, after surpassing wind power.

The first comprehensive review of global electricity data covers 80 countries, which represent 92% of the world's electricity demand, as well as historic data for 215 countries. The surge in clean electricity is expected to power a 2% decrease in global fossil fuel generation in the year ahead, according to Ember. [...] World leaders are aiming to grow renewables to 60% of global electricity by 2030 under an agreement struck at the UN's Cop28 climate change conference in December. This would require countries to triple their current renewable electricity capacity in the next six years, which would almost halve power sector emissions.

Renewable Energy Passes 30% of World's Electricity Supply

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  • While we knew 40y ago how climate change was a thing, they still dare to say that "electricity has already helped to slow the growth in fossil fuels by almost two-thirds in the past 10 years"

    "already" !?!?

    So yes, almost 50y in, and we're still burning more and more every year. That's how sad a state we're in.

    You really do deserve your holiday in the sun, amirite.

    • by bill_mcgonigle ( 4333 ) * on Wednesday May 08, 2024 @06:03AM (#64456108) Homepage Journal

      > You really do deserve your holiday in the sun, amirite.

      I know lots of people who virtue signal and not a single one has stopped taking hot showers even though they could.

      They'll trade in their Prius for a Model X though. CO2 payback should occur in 2055 if they also install an acre of new solar in their yard and don't need to replace the battery before then.

      Oh, and a new flagship iPhone every twelve months.

      Maybe I'll meet somebody someday who actually walks the walk.

      • They'll trade in their Prius for a Model X though. CO2 payback should occur in 2055 if they also install an acre of new solar in their yard and don't need to replace the battery before then.

        Your calculation assumes the Prius is going into a junkyard instead of to its next owner, which isn't true.

      • Hot showers don't need to stop. If all houses put two square meters of solar hot water panels on their roof (which the vast majority of buildings in the US can manage), we could eliminate ~90% of domestic hot water carbon footprint. Add in electric on-demand water heaters and one square meter of solar PV, and you've eliminated the carbon footprint of domestic hot water generation.

        Pre-WW2 US, even mid-sized cities had a comprehensive electric trolley system that usually connected to a region commuter rail s

        • by flink ( 18449 )

          I looked into swapping the ailing oil furnace/on-demand hot water heater in my new house with an air-to-water electric heat pump, but the cost was astronomical: $30k+ outlay for the unit + installation. Also, because the make-up on electric is slower I would also need a 70 gallon hot water tank for a family of 4. Plus the load temperature of electric is 130F compared to 180F for oil, so all my forced hot water heat registers are now undersized and would have to be replaced.

          Even with tax breaks and incentiv

    • by thegarbz ( 1787294 ) on Wednesday May 08, 2024 @07:31AM (#64456240)

      While we knew 40y ago how climate change was a thing

      Knowing and caring are two different things. To change something you need to care about that, and 40 years ago no one gave a flying fuck about climate change except for a few scientists.

      • And Al Gore. It was ironically almost exactly 40 years ago that, then Sen. Gore, invited Carl Sagan to testify before the Senate on climate change and the urgency of action needed. If Al Gore had been elected in 2000 over GWB, we'd be looking at a much different problem now. No ANWR drilling, less fracking, more climate subsidies, and a much smaller national debt would put us in a significantly different situation than we find ourselves.

  • This tends to happen when you change the definition of renewable and purposely count China incorrectly.
  • So let's keep clear cutting forests to save the environment.

    • by AmiMoJo ( 196126 )

      Trees are only renewable if you plant new ones to replace the ones you cut down.

      And even then, only if removing them doesn't negatively impact the local environment in some other way that the new ones don't compensate for.

  • As we move automotive and home heating off of fossil fuels and to electricity, won't electricity demand outpace renewable sources?

    • by shilly ( 142940 )

      This is why utility companies like National Grid in the UK employ analysts with big brains to build complex models forecasting future demand and supply: it's hard to get right, and you can't do it based on vibes, you need data, maths and robust tyre-kicking of your assumptions. Even then, if you're sensible, you build a range of scenarios into your models so that you can do business planning that doesn't assume the world is deterministic.

      Here is a layperson explanation of work done back in 2017: https://www [nationalgrid.com]

  • This is great news and one of the few hopes I have for some semblance of civilization surviving the next three centuries. But it's still not enough.

    First, the 19% renewables in 2001 figure is almost entirely hydro power, which does come with significant environmental costs. But hydro doesn't even make up that much of the 2023 renewables figure as there hasn't been that much new hydro capacity built since then. The areas where it's possible to build hydro dams are limited and most of the low hanging fruit w

  • Think tanks don't operate in a vacuum. So who funded this?

Everything should be made as simple as possible, but not simpler. -- Albert Einstein

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