Please create an account to participate in the Slashdot moderation system

 



Forgot your password?
typodupeerror
×
Government United States

Biden Offers Ambitious Blueprint for Solar Energy (nytimes.com) 263

The Biden administration on Wednesday released a blueprint for producing almost half of the nation's electricity from the sun by 2050 -- something that would require the country to double the amount of solar energy installed every year over the next four years and then double it again by 2030. From a report: The expansion of solar energy is part of President Biden's effort to fight climate change, but there would be little historical precedent for increasing solar energy, which contributed less than 4 percent of the country's electricity last year, that quickly. Such a large increase, laid out in an Energy Department report, is in line with what most climate scientists say is needed to stave off the worst effects of global warming. It would require a vast transformation in technology, the energy industry and the way people live.

The Energy Department said its calculations showed that solar panels had fallen so much in cost that they could produce 40 percent of the country's electricity by 2035 -- enough to power all American homes -- and 45 percent by 2050. Getting there will mean trillions of dollars in investments by homeowners, businesses and the government. The electric grid -- built for hulking coal, natural gas and nuclear power plants -- would have to be almost completely remade with the addition of batteries, transmission lines and other technologies that can soak up electricity when the sun is shining and to send it from one corner of the country to another.

This discussion has been archived. No new comments can be posted.

Biden Offers Ambitious Blueprint for Solar Energy

Comments Filter:
  • solar panels create no issues when used.... It is pure magic!

    • 40% isn't a high goal and is certainly achievable.

      • by MacMann ( 7518492 ) on Thursday September 09, 2021 @12:37AM (#61778131)

        Nuclear power plants have been providing abut 20% of our electricity with about 100 reactors for decades. Double that and it's 40%. Double that again and it's 80% of our electricity from 400 nuclear power reactors providing reliable, safe, and very low CO2 electricity.

        In the 1970s we were able to put about one GW of new nuclear power capacity on the grid per month in the USA. The industrial capacity has grown considerably since then. Imagine one new GW scale reactor in the USA per week for 50 weeks per year. (We'll give the workers some holidays.) So that's 400 reactors on the grid in less than a decade. That's with hardly breaking a sweat given that the national economic output today is ten times that of the 1970s. It will take time to get the ball rolling but once that happens we could see a new nuclear power reactor go online every week, except around Christmas and Easter because the workers need their vacations.

        I can hear it now, "We can't build a nuclear power plant that fast!" We did it before so we can do it again. Nobody knew how to build a nuclear power plant in 1950 but by the 1970s we were cranking them out by the dozens. We won't have to start from nothing this time. We start from the attitude that it can be done, it must be done, so go do it.

        Or we can keep sitting on our hands because building things is hard.

        That's an example on what could be done, not necessarily advocating for it to be done. We'll still be building windmills, hydro dams, and such. The solution is there, all we need is a government willing to allow it to happen.

  • ...our aging, falling apart, insecure [wired.com] power grid is not in dire need of an upgrade. It's the first target I'd hit if I wanted to create chaos in the USA.
  • by Geekbot ( 641878 ) on Wednesday September 08, 2021 @07:45PM (#61777519)

    I'm not sure I understand where those numbers are coming from. Current solar panels are 25 to 30 years. So barring any damage, by the time he's talking about really ramping this up, wouldn't we also need to replace a ton of existing panels? I'm not sure an improved grid or storage system is the bottleneck. It's ok to be ambitious, but to plan on vast upgrades to solar panel manufacturing, recycling, and materials in over the next few decades seems unrealistic. Within that time span I imagine that it is at least as plausible that more realistic energy solutions become readily available making this just a way to dump money into an industry with no need to complete objectives.

    • Re:numbers (Score:5, Informative)

      by drinkypoo ( 153816 ) <drink@hyperlogos.org> on Wednesday September 08, 2021 @10:25PM (#61777899) Homepage Journal

      Current solar panels are 25 to 30 years. So barring any damage, by the time he's talking about really ramping this up, wouldn't we also need to replace a ton of existing panels?

      Most of the panels ever made are still in service.

      Solar panel degradation has turned out to be much less than expected.

      The panels I bought have a 25 year warranty against reduction in output to below the advertised spec, and a 20 year warranty against manufacturing defects. But it's very rare for a panel to fail without being damaged, and that gets harder and harder. Many panels are rated against golf ball sized hail.

      In short, no, and also no, and did I mention no?

      • Panels on roofs in warm areas have a hard life. They definitely degrade. All my panels are second hand to me and they are working OK but I can see a discoloration in the central part of each cell. Some are Shell Solar panels and the others are the same but BP branded (BP bought Shell solar when Shell got out of the solar business).

        The reason the original owners got rid of the panels is that the new ones can put out much more power in the same space. I have lots of space (ground mount panels). So I don't car

        • Panels on roofs in warm areas have a hard life. They definitely degrade.

          Sure, but look. If I'm still getting 375W when perfectly oriented in 20 years, and I paid $0.44/watt for them brand new with no shipping (my lady picked them up at Real Goods) then I win, right? I've got what I paid for. And I don't care about discoloration, I care about actual output.

          [...]old installations are being continually upgraded already, not because of panels wearing out, but just because the state of the art has advanced.

          Correct. And we can hope that this will continue, that they will find new and better ways to get more efficiency out of solar panels. But that's not a reason to not put them in now. The panels could repay their energy investme

          • In some states, solar is still low-hanging fruit. But in California, and even more so in Hawaii, there is almost a glut of solar. What is really needed is storage so we can add more solar and not have to throttle it back in moments of over-abundance (which is happening now in Hawaii and maybe in California).

            My house has net metering and for my own personal financial situation solar is a total no-brainer. I bought second-hand panels for 20 cents a Watt and put them in myself. It probably paid for itself in o

            • this investment in grid scale batteries is NOT going to be free. And probably it is not going to be easy or fast either, truth be told.

              Fast and easy no, they can only make batteries so fast. Free, no of course someone has to pay, but it's profitable to operate grid storage so there's little drawback to investment.

    • There are other ways of getting solar energy than photovoltaics. Some of which apparently are capable of producing more energy than necessary. When a government focuses of on solar, it gives an impetus to research and develop these technologies further because there is a higher chance of getting a return on investment.
  • Would definitely incentivize me to add 4 KW of capacity along with battery storage. That would make me net positive about 80% of the year. I don't have enough roof to make more cost efficient.
    • You can store 20kWH in a household-sized water tank.

      I think heating water for my family consumes quite a lot of my electricity anyway, heat it during the day either with PV or direct heat transfer and take the water heating load off at night, one more thing to cross off the list of power consumers.

      The stored heat in water can be used to heat the house too with a little more plumbing

  • by linuxguy ( 98493 ) on Wednesday September 08, 2021 @07:54PM (#61777543) Homepage
    If homeowners and businesses are encouraged and incentivized to install solar on their own roofs, some of the transmission related challenges can be avoided or minimized. For example, electricity produced during the day can mostly be used by the home/business. There would be little or no excess that would need to be transported or stored. While this doesn't completely solve the problem, it makes it more manageable.
    • I am sure that it will be cheaper for society to install the storage in more industrial sizes. It is just an economy of scale thing. It could be installed near major switch stations, perhaps, as these are already industrialized areas with restricted access.

      What I am afraid of is if rich people all get powerwalls and have reliable power, and poor people all use shitty grid power that goes out every few days. I see this as a real possibility.

      I have a backup generator but I am thinking about adding batteries b

  • It's not a blueprint (Score:4, Interesting)

    by magzteel ( 5013587 ) on Wednesday September 08, 2021 @08:13PM (#61777601)

    This is not a blueprint. A blueprint is a specific plan for accomplishing something.

    This is just an aspirational thing with no actual plans for how to get it done. From TFA:

    "But it is not clear how hard the administration will push to advance solar energy through legislation and regulations. Officials have provided only a broad outline for how they hope to clean up the country’s energy system and its cars and trucks. Many details will ultimately be decided by Congress, which is working on a bipartisan infrastructure bill and a much larger Democratic measure that could authorize $3.5 trillion in federal spending."

    Nobody would describe a blueprint as "a broad outline for how they hope" to do something.

    • Be glad it isn't. Forcing everyone to use solar is not a laudable goal. Giving people some incentive to use a better, cheaper source of electrical energy than coal or natural gas IS a laudable goal, especially if that source happens to pollute less end-to-end or maybe release less CO2. Give people the flexibility to find their own way instead of picking out an industry favored by your cronies.

  • by FuzzMaster ( 596994 ) on Wednesday September 08, 2021 @08:18PM (#61777611)
    We need weather- and season-independent sources of power that don't emit carbon to make it through the winter. Solar and wind can't meet our needs when the wind isn't blowing and the sun isn't shining. If we don't fund and build more nuclear plants, we will have no choice but to burn fossil fuels for power in the winter.
    • by crow ( 16139 )

      That sounds logical, but have you really studied the data? Rooftop solar still produces a lot of power in the winter, even in New England. Wind power still works just fine in the winter. It would be trivial to have all new single-family (and probably up to four-family) homes in New England be net-zero with good energy efficiency and solar. Yes, some homes aren't solar candidates due to trees or other shading issues, but most are, and those could overproduce a bit to make the overall new production be ne

      • by MacMann ( 7518492 ) on Thursday September 09, 2021 @12:07AM (#61778109)

        That sounds logical, but have you really studied the data?

        I have.

        Rooftop solar still produces a lot of power in the winter, even in New England.

        Rooftop solar costs more than nuclear power.
        Sources:
        https://www.powermag.com/iea-n... [powermag.com]
        https://www.lazard.com/perspec... [lazard.com]

        What's missing now is adequate incentives for storage.

        I believe the issue is far too many incentives on intermittent power which is driving the need for storage. If the goal is lower CO2 emissions then all low CO2 energy sources should be incentivized. That means nuclear and hydro should be subsidized as much as wind and solar. The Biden administration made statements showing support for nuclear power before, why not mention support now?

  • Too exspensive! (Score:2, Insightful)

    by gabrieltss ( 64078 )
    We bought 3 LiOn batteries (amp hr each), a new converter/charger/inverter and solar panels for our 32ft motorhome and it cost over $3,000. Do that for a house and your talking $40K plus - we looked into it. The ONLY way it will happen for residential homes is for the prices to drop DRASTICALLY! That is the problem with this democrat wet dream of everyone going solar COST! BIden and his ilk need to get a F!ing clue! Solar right now costs way to much! I would LOVE to outfit my house with a nice sun tracking
    • Hydrogen is the way to go for vehicles not electric! I worked at a ULine warehouse were they converted ALL their electric forklifts to Hydrogen.

      That still doesn't make it the way to go. Most people aren't operating a warehouse. For most people, not having to drive to a filling station is a huge boon. And not having untrained users dealing with hydrogen is a good thing too, frankly. The street I live on has a bunch of kerbside charging points in lamp posts, since no one has off street parking and it's just n

    • by ras ( 84108 )

      The ONLY way it will happen for residential homes is for the prices to drop DRASTICALLY!

      True. Batteries for bulk energy storage aren't viable right now. Price would have to halve. The thing is, if past performance is any guide [transportenvironment.org] (see fig 11), that's will happen and then some this decade.

    • Hydrogen is only useful for niche applications. Its take tons of electricity to produce hydrogen, you'll need many plants to produce enough just for the niche applications, imagine how many you'll need if it was for passenger vehicles. And you'll still have monster trucks to transport it to the stations which have to have millions spent to install a hydrogen pump and storage
  • by maynard ( 3337 ) on Wednesday September 08, 2021 @08:50PM (#61777695) Journal

    China has deployed a one million volt DC electric grid transmission system which, is efficient at several thousand kilometers. They are deploying solar, wind, hydroelectric and nuclear as fast as they can. And not focusing on storage but instead a national transmission grid. Solar in the northwest where it's still light and transmitted to the south east where it's dark in summertime, especially for hvac cooling. Invert that for winter.

    https://spectrum.ieee.org/chin... [ieee.org]

    We could do the same thing. And in fact we desperately need to upgrade our electric grid anyway.

    • by AmiMoJo ( 196126 )

      It's odd that the US is so reluctant when it's one of the few countries that has enough geographic spread to make long distance transmission a major component of its clean energy stratergy.

      China also has district air conditioning. Basically they have a massive and efficient air conditioning unit that chills water and distributes it to businesses all over a city. It cuts energy use for cooling considerably. The early designs were more expensive than using small air conditioning units, but the newer ones comi

      • Mostly the old fucks scared of change. Look how angry they over things that other people do and have zero effect on them.

    • They're also building more coal power plants than everyone else combined.

      Your point, again?

  • by mamba-mamba ( 445365 ) on Wednesday September 08, 2021 @10:04PM (#61777865)

    I am sure the article goes into this. But there is little point in adding solar unless we also add storage at the same time. I know a lot of people understand this. But a surprising number of people I run into or talk to do not get it. In some sunny states, the grid is already over half solar during the day. In those locations, adding solar may be counter productive because it is starting to knock baseline generation off the grid and force us to use more natural gas peakers in the afternoon and evening.

    Of the two challenges, increasing solar and increasing storage, storage is by far the more difficult and more expensive of the two. It is not technically or physically impossible but it will be very challenging to do it in this time frame, and it is very likely that the grid will become less reliable and more expensive in the short and medium term. Especially if we also transition from ICE cars to electric cars and also transition heating and cooking to electric at the same time.

    It is not at all clear to me that this is the best way to go. I think the problem is that lithium batteries and solar technology (and wind) are the only ones mature enough at the moment to implement on a wide scale. Flow batteries and thermal storage types of solar power are promising but not mature enough yet to roll out. The sense of urgency surrounding climate change is not conducive to thinking things though carefully.

    • by AmiMoJo ( 196126 )

      Distributed smart storage can really help with this.

      With solar you get a peak during the day. A smart heat storage unit could turn itself on when there is excess energy available, and then use that energy later to heat water when the homeowner wants to take a shower. Such units already exist, ranging from basic hot water tanks with immersion heaters to ones that use phase changing materials to increase the heat storage density.

      Similarly with electric vehicles a lot of people can charge when electricity is c

  • Just like China, we need to make a special zone, near the US/Mexico border, with massive incentives for factories. Invite all of the solar panel and related factories in the world to setup shop there. Low taxes, zero import duties, allow immigrant worker visas and training for the hordes from Mexico and Central/South America. Incentives for high tech American workers and scientists, like reduced taxes. DO IT NOW, before western civilization completely turns into a Soviet Chinese state.

    • Yup - you could also plant the solar panels vertically in a long line along the border and achieve another useful effect...
  • by mevets ( 322601 ) on Wednesday September 08, 2021 @11:45PM (#61778069)

    " double the amount of solar energy installed every year over the next four years and then double it again by 2030 "
    so:
    2022 2x
    2023 2x
    2024 2x
    2025 2x
    2026 1.2x
    2027 1.2x ...
    2031 1.2x
    So, if we adopt this plan, within 4 years, our cumulative effort will start to substantially decline.
    Where do I sign up?

  • Makes no sense. We convert everyone to using electric cars, which will mostly be charged at night, and at the same time we convert 50% of supply to a form of power generation which only produces the power to charge them during the day.

    This is not even considering what powers the air conditioners during hot summer evenings.

    And when its all done, no-one has shown that this will in fact lower US CO2 emissions. Nor has anyone shown that lowering US CO2 emissions will lower global emissions.

    For that matter, no

    • As for batteries, there are not enough raw materials globally to make enough batteries to do it. There are probably not enough to convert all automobiles to EV, never mind when you get started on the much bigger task of installing grid level batteries which will supply power all evenings.

      Last I checked there wasn't a shortage in supply of sodium or sulphur, both of which make for perfectly fine grid scale batteries.

    • Makes no sense. We convert everyone to using electric cars, which will mostly be charged at night, and at the same time we convert 50% of supply to a form of power generation which only produces the power to charge them during the day.

      This is not even considering what powers the air conditioners during hot summer evenings.

      And when its all done, no-one has shown that this will in fact lower US CO2 emissions. Nor has anyone shown that lowering US CO2 emissions will lower global emissions.

      For that matter, no-one has shown that previous coolings were preceded by falls in atmospheric CO2. To buy into this you have to believe it works both ways, on the upside and the downside.

      It makes no sense however you look at it.

      I decided to step beyond this debate on CO2 emissions because no matter what anyone thinks on CO2 emissions there are many other problems on energy to worry about, and nearly all the solutions for those problems will lower CO2 emissions. If we are to reduce our dependence on foreign energy, as one example, we need to find alternatives to natural gas and petroleum. Those alternatives will be onshore wind, geothermal, hydro, nuclear fission, and synthesized fuels. Alternatives that have lower CO2 emissions

Keep up the good work! But please don't ask me to help.

Working...