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Power United States

Wind, Solar Provide 67% of New US Electrical Generating Capacity In First Half of 2022 (electrek.co) 106

Klaxton shares a report from Electrek: Clean energy accounted for more than two-thirds of the new US electrical generating capacity added during the first six months of 2022, according to data recently released by the Federal Energy Regulatory Commission (FERC). Wind (5,722 megawatts) and solar (3,895 MW) provided 67.01% of the 14,352 MW in utility-scale (that is, greater than 1 MW) capacity that came online during the first half of 2022. Additional capacity was provided by geothermal (26 MW), hydropower (7 MW), and biomass (2 MW). The balance came from natural gas (4,695 MW) and oil (5 MW). No new capacity was reported for 2022 from either nuclear power or coal. This brings clean energy's share of total US available installed generating capacity up to 26.74%. To put that in perspective, five years ago, clean energy's share was 19.7%. Ten years ago, it was 14.76%.
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Wind, Solar Provide 67% of New US Electrical Generating Capacity In First Half of 2022

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  • by MoHaG ( 1002926 ) on Wednesday August 17, 2022 @02:16AM (#62795905) Homepage

    The summary is better at least...

    New capacity added - not total installed capacity as implied in the title... (And certainly not share of total generated energy)

    The capacity is also misleading - it might make more sense to use annual average output power capability instead of peak values... With the current ratings 1GW of nuclear would generate a lot more power than 1GW of solar / wind, but it seems equivalent...

    • by MoHaG ( 1002926 )

      (Rereading the headline it does not seem that bad though)

    • by ls671 ( 1122017 )

      Indeed, 67% of "new capacity" is at least a questionable figure.

    • The summary is better at least...

      New capacity added - not total installed capacity as implied in the title... (And certainly not share of total generated energy)

      The capacity is also misleading - it might make more sense to use annual average output power capability instead of peak values... With the current ratings 1GW of nuclear would generate a lot more power than 1GW of solar / wind, but it seems equivalent...

      I think the text that is in BOLD is very important since capacity means nothing if the wind does not blow and the Sun does not shine. "nameplate capacity" is not the same as "power actually contributed to the grid".

      Perhaps a daily reporting of percentage comparison for each power generating source of [(power generated) / (nameplate capacity installed)] should be added to all grid operators charts. That could be very interesting and potentially revealing of the true cost/benefit ratio of the various power ge

      • Yep, I pointed this out below as well. 67% installed capacity might be 30% of actual generation from renewable.

        I don't have numbers fro California but I looked into France before. They have about 8,000MW installed solar capacity. The average generation over the year is about 1,500MW (so including winters, nights, etc). That's 20%. About 30% in the summer months which may be closer to what you get in California.

        • The current generation of 12MW offshore wind turbines have capacity factors (generated energy / theoretical limit) of over 60%, so are getting pretty good. Onshore is less reliable, turbines vary, abd poor siting and occlusion also make a difference. However, the operating cost for US wind power is now $11/MWh which means it is very cost effective in operation
        • Wind generation is widely know for it's variable power generation output. After all it's source of energy is widely known for being incredibly variable.

          So I agree with your comment and I would like to add the following:

          I looked at the numbers for Texas simply because they have had issues that have received lots of news coverage and I have found the ERCOT website somewhat easy to use.

          From what I can figure out from the ERCOT pages...wind generation in Texas contributes power to the Texas grid ranging from le

        • Actual generation, depending on where it is installed is between 15% (inland) to 45% (windmills in the ocean) of nameplate capacity.

          Overall consumption from those sources is a big difference, look at Germany, actual domestic consumption hasnâ(TM)t increased linearly with the capacity added.

    • "In 2020, renewable energy sources (including wind, hydroelectric, solar, biomass, and geothermal energy) generated a record 834 billion kilowatthours (kWh) of electricity, or about 21% of all the electricity generated in the United States"

      https://www.eia.gov/todayinene... [eia.gov]

      Or, for a shorter period of 1 month this year:

      "The amount of electricity generated by renewable resources hit a record 28% in April, a breakthrough number that shows how important renewable energy has become in U.S. energy markets."

    • In the US, it is not rocket science that other types of power are not being built as older plants age and eventually get decomissioned. For example coal power's peak was in 2011 [forbes.com] with an annual 317GW. At best coal plants are being converted to gas but many of them are being shut down in the upcoming years [reuters.com].

      With the current ratings 1GW of nuclear would generate a lot more power than 1GW of solar / wind, but it seems equivalent...

      I am not sure what you mean in that 1GW != 1GW.

    • Specific to the other sources listed of (small) hydro, oil, and natural gas, they are all actually likely to have similar capacity factors. Most gas power being put in is peaker plants running at 10-15%, and the hydro added in the US tends to have a capacity factor of around 20-25% maximum. I am not certain where they are adding oil-fired plants in the US, but I would be very surprised if the capacity factor is over 50%, and 40% is more likely.

      Sure, nuclear has a capacity factor of around 83%, but if it i

      • by MoHaG ( 1002926 )

        The fuel burning types can run at higher capacity factors if needed though - solar and wind are limited by uncontrollable factors. (There are 100% limits for everything though)

  • by khchung ( 462899 ) on Wednesday August 17, 2022 @02:51AM (#62795941) Journal

    Measuring the PERCENTAGE of NEW capacity that is green is the wrong metric to look at. This number can be easily skewed by blocking/slowing coal/gas power plants. In extreme case, blocking all new coal/gas plants can give you 100% for a year, but it means nothing.

    The correct metric is the number of green MW capacity added, because there is a target total amount of MW capacity the country needed to meet the carbon neutral target, and hence there need to be yearly target that can be met or missed.

    Because the headline is using %, it is safe bet that the MW capacity target was missed, so this was reporting a loss as if it was a win to mislead readers.

    • by AmiMoJo ( 196126 )

      5.7GW is wind is rather low considering the available untapped resources in the US. For a country that size you should be able to install a lot more.

      • I've advocated for decades that wind turbines be set up around the NoVA region around DC. There are literally thousands of untapped GWh in hot air that's generated in the region.

    • The correct metric is the number of green MW capacity added, because there is a target total amount of MW capacity the country needed to meet the carbon neutral target, and hence there need to be yearly target that can be met or missed.

      That won't tell you much either unless you already know how many MWs are needed, how many old plants are taken offline, etc.

      Also we should be rather looking at % of generated power and not installed capacity. 67% might sound great but I'd guess it's actually like 30% of actual output.

    • > The correct metric is the number of green MW capacity added

      Those numbers are right here in the summary. Did you really stop reading at the headline so you could complain about it?

    • People aren't blocking coal plants, gas plants are cheaper to build and run now so there's not enough money to be made building them.
  • by linuxguy ( 98493 ) on Wednesday August 17, 2022 @03:10AM (#62795975) Homepage
    Is it perfect? No. But, it is a step in the right direction. I'll celebrate that. I look forward to the day when the extremely noisy cars and trucks are off the road and me and family are breathing air that has fewer toxic fumes from automobile exhausts.
    • Is it perfect? No. But, it is a step in the right direction. I'll celebrate that. I look forward to the day when the extremely noisy cars and trucks are off the road and me and family are breathing air that has fewer toxic fumes from automobile exhausts.

      Step in the right direction? We're at 67% now. By the time we reach 100%, the US will be powering the worlds "greatest" Great Depression.

      But hey...you'll be breathing fresh toxic-free air while killing for your food.

      Congratulations.

      * golf clap *

  • ... how is battery storage coming on? The sun doesn't shine at night and the wind doesn't always blow so - despite a lot of clueless greenies claiming otherwise - baseload production is required whether that be nuclear or fossil fuels until (and after though hopefully less) decent power storage systems are rolled out. Yes hydro but thats not much use if you're nowhere near mountains.

    • You don't know much about energy supply, do you? Try reading up on how a mix of different technologies are necessary & that one type of electricity production is rarely a good option, e.g. nuclear electricity can't provide peak usage supply because you can't ramp up & slow down production quickly enough.
      • You don't know much about energy supply, do you? Modern nuclear reactors can load-follow very nicely. https://en.wikipedia.org/wiki/... [wikipedia.org]
        • by Uecker ( 1842596 )

          Yes, although deep cycles that reduced power output a lot cause stress and only a limited number should be performed during the life time. In the end, this is more an economic question than a technical one. Economically, it does not make sense.

      • by Viol8 ( 599362 )

        "that one type of electricity production is rarely a good option"

        I suggest you learn to read before knee jerking a reply. That was rather my point.

        "because you can't ramp up & slow down production quickly enough"

        Yes you can.

    • Even if you need the gas and maybe coal plants in the night.
      Not needing them in the day would already be a big improvement.
    • It really depends on where and how energy is used. Solar+battery is great for single-family residential and low-rise commercial in areas with good sun exposure, but does not serve cities very well or places that have a large electric heating need with cold winters. The "good case" can economically get ~95% of their daily energy from solar in the summer, and ~65% in the winter (while exporting enough in the summer to offset winter consumption; larger batteries are generally not economical to avoid some lev

  • That would be a better headline. You guys are still building new gas and oil plants? Why?
    • Gas plants are typically used to deal with peak demands (or generator dips). They can be switched on pretty fast. So they may be needed as an insurance for a windstill grey day. But I do not know if this is the reason in the US for building these.
      • There are two general types of natural gas plants. The peaker plants only run a gas turbine. They are fast to spin up and shut down, but less efficient. The other kind is "Combined cycle", which uses a steam boiler after the turbine to capture the remaining heat. They take longer to spin up because a boiler tank with water has a lot of heat capacity and takes time to warm up.

        The combined cycle plants are more efficient, around 55% in converting natural gas energy to electricity. They supply about 35% o

  • by bradley13 ( 1118935 ) on Wednesday August 17, 2022 @04:24AM (#62796089) Homepage

    It's great that green energy is being installed, but it's pretty meaningless. I mean: no one is currently building new coal power plants, or nuclear. Building new dams is nearly impossible. So about the only other kind of power plant that is being built is natural gas.

    Now start building modular nuclear reactors, without absurd NIMBY and bureaucratic obstacles.

    • by VeryFluffyBunny ( 5037285 ) on Wednesday August 17, 2022 @06:03AM (#62796247)
      Nuclear power plants can't replace gas because they can't ramp up & slow down to meet changes in demand quickly enough. They're different production methods with different characteristics that serve different purposes in the energy mix. Also, even if they were safe & didn't actually cost outrageous sums of money to build to completion, nukes take too long to build to meet the demand we need. We're in a race to stop the planet from cooking. We haven't got 30-50 years to wait.
      • Nuclear power plants can't replace gas because they can't ramp up & slow down to meet changes in demand quickly enough.

        That's be where batteries com into it.

        PS: Power demand peaks aren't a sudden surprise that needs to be reacted to. The companies know all the TV schedules and stuff, they're waiting for the spikes and can spool things up in advance.

        • > That's be where batteries com into it.

          Adding batteries will lower the economic value of baseload generators, which will have the effect of making nuclear even less competitive. Batteries don't care where their electrons come from, and feeding them cheap PV electrons works just as well as expensive nuclear ones.

      • Nuclear can absolutely ramp up and down with demand. It's just better to run it at 100% since you mostly have fixed costs to deal with.

      • by GoTeam ( 5042081 )

        Nuclear power plants can't replace gas because they can't ramp up & slow down to meet changes in demand quickly enough.

        That is no longer correct [mit.edu].

        Also, even if they were safe & didn't actually cost outrageous sums of money to build to completion, nukes take too long to build to meet the demand we need.

        How long do you think it'll take to create a base load of green energy sources with the same capacity of standard (new) nuclear plants? There are some things we can do to speed up the process [mit.edu].

        We're in a race to stop the planet from cooking. We haven't got 30-50 years to wait.

        Claims like this make climate activists sound like snake oil salesmen. The facts related to clean air and water are enough to convince most folks that we need to make some changes. Predicting the end of the world over and over won't convince many people. You might as well be standing on a str

        • by Uecker ( 1842596 )

          The problem with load-following is that it economically makes no sense for nuclear power plants.

          One can add renewables quickly, Germany ramped up production per year (not capacity) from 2010 with 105 TWh to 2015 189 TWh to 2020 251 TWh which was 45% of consumption and this is still considered relatively slow to what is possible. France announced to build 6 nuclear power plants with the first one to be expected online in 2035.

    • NuScale just got permission to build their reactor, so now they get to actually build them and we get to see if this attempt at SMRs will be the same as all prior attempts at SMRs; i.e. a senseless failure.

      • And when they succeed in building them you will find another reason to oppose nuclear energy. There is always an excuse to continue burning fossil fuels.
        • And when they succeed in building them you will find another reason to oppose nuclear energy.

          If they cause more problems than they solve, then yes, I will. If not, maybe not. It remains to be seen, but frankly I'm not too concerned that I'm going to have to change my opinion... based on all of the recorded history of nuclear power.

          There is always an excuse to continue burning fossil fuels.

          You nuclear fanboys always tell lies. The one you're telling now is that there is a dichotomy between nuclear and fossil fuels. That's false, and you know it, so you know you're a liar. Tell someone dumber your lies. I'm not having any.

          • Based on all of the recorded history of nuclear, a rational person would be unequivocally in favor of nuclear.

            And you are the biggest liar on here. Which is why you always project and call us liars.

            And it is not a false dichotomy between nuclear and fossil fuels. Historically opposition to nuclear means increased fossil fuels. That is still true today. See Indian Point and Germany.

  • by ballpoint ( 192660 ) on Wednesday August 17, 2022 @06:41AM (#62796301)

    "67% of New ... Capacity"

    I'd rather see absolute than relative values. How much is that in Farads ?

  • by Arnold Reinhold ( 539934 ) on Wednesday August 17, 2022 @07:27AM (#62796385) Homepage
    Do the solar numbers include "behind the meter" PV installations, such as home roof tops? The New England grid (iso-ne.com) recently began including an estimate of behind the meter solar generation and it is much larger that the grid-connected solar they had been reporting. See https://isonewswire.com/2022/0... [isonewswire.com]
    • by jbengt ( 874751 )

      Do the solar numbers include "behind the meter" PV installations, such as home roof tops?

      No. This is for "utility scale" projects, i.e. 1 MW or greater.

    • The EIA "Electric Power Monthly" tabulates all the sources of US electricity. They have a column for "small scale generation" that covers rooftop solar, among other things. Utility power (over 1 MW) are required to report their data. Smaller installations are not, and if they use the power internally, it never makes it to a transmission line where it can be measured.

      So that column is an estimate, based on sales, installations and other data sources. If a user has "net metering" with their utility (gets

  • mean that 1GW of solar and wind generate about a third as much energy as 1GW of coal and nuclear. Because the sun doesn't always shine and the wind doesn't always blow, but coal and nuclear can run close to their rated output for long periods of time.

    Renewables are great, but fudging the numbers as this headline does---in multiple ways---just gives ammunition to its opponents.

    • Since no coal or nuclear was added, I don't think they fudged anything. The capacity factors for coal and nuclear don't matter. Anything times zero is still zero.

      In any case, the average capacity factor of coal [statista.com] is only about 50%. That makes it slightly higher than wind, but only slightly. Nuclear does have a much higher factor.

      The other important number is the capacity factor for gas, since that was most of the rest. It depends on the type of plant. Peaker plants usually have capacity factors of 10% o

  • We're not building as many new gas and coal plants, but we should not be building any. And no new nuclear reactors this year.

    • I'm old enough to remember the building of the mid-scale gas plants because coal "bad."

      According to the EIA in 2020 [eia.gov] CNG accounts for 37.2% of generation, Nuclear 19.7% and Coal 10.1%. Hydro is 7.1% That's 74.1% of US energy production.

      Wind and PV account for 10.5%

      For me, the numbers don't add up because that would mean we've added 16% more PV and Wind in the past two years and if it does represent 26% of the production how much did it supplant coal or is this net-new generation?

      Cynically speaking, it would

      • Once you cover your base load power with either gas or nuclear, you can turn off any of the coal plants you have. And if your peak power is covered by wind and solar, you can turn off some but not all coal plants. Removing coal plants is more effective at reducing that 10% than adding lots of a specific type.

    • Actually Vogtle 3 has been cleared for fuel loading. So it should begin producing electricity before the end of the year.
      • I suspect the report covers government FY22 and not actual 2022. (October to September, not January to December)

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