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Government United States News

California Gives Final OK To Require Solar Panels On New Houses (npr.org) 563

Solar panels will be a required feature on new houses in California, after the state's Building Standards Commission gave final approval to a housing rule that's the first of its kind in the United States. From a report: Set to take effect in 2020, the new standard includes an exemption for houses that are often shaded from the sun. It also includes incentives for people to add a high-capacity battery to their home's electrical system, to store the sun's energy. "These provisions really are historic and will be a beacon of light for the rest of the country," said commissioner Kent Sasaki, according to The Mercury News. "[It's] the beginning of substantial improvement in how we produce energy and reduce the consumption of fossil fuels."

The rule marks a new phase in California's environmental policies, which have often set trends and established standards nationwide. The state has set the goal of drawing 100 percent of its electricity from renewable energy sources and sharply reducing greenhouse gas emissions. The solar panels rule was initially endorsed as part of the state's Green Building Standards Code by the California Energy Commission back in May.

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California Gives Final OK To Require Solar Panels On New Houses

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  • Building Design (Score:4, Interesting)

    by Camel Pilot ( 78781 ) on Friday December 07, 2018 @03:25PM (#57767206) Homepage Journal

    I am actually designing a house to build in California Desert. Good design and energy efficiency dictates sloping roof inclines in a northern direction. So how is this new requirement to place solar panels on a roof going to effect building design?

    • In a similar manner that the regulations after Enron fucked the state altered building design.

      New buildings will have to be significantly different than old buildings.

    • Maybe reconsider the design to take the solar panels into account.

      You say the roof "roof inclines in a northern direction" which makes it sound like it's already pitched to face south (inclines, meaning slopes up, as you go north). That's actually perfect for solar PV.

      If you means the roof slopes the other way - high at the south side and lower on the north side - what is the rationale that makes this design better?
      =Smidge=

    • by ljw1004 ( 764174 )

      I am actually designing a house to build in California Desert. Good design and energy efficiency dictates sloping roof inclines in a northern direction. So how is this new requirement to place solar panels on a roof going to effect building design?

      I'd love to know what are those good design and efficiency principles that dictate a north-facing roof. I spent ten minutes on google, but the only principle I found was traditional Vasthu from India. I'd love if you could point to something, please?

      I'm struck that in hot climates, buildings have typically had flat roofs. I don't know why.

      The roof/architecture style I'm familiar with for hot climates was to have huge overhangs on the roof, so the entirety of all walls are shaded during almost all the day. I

    • by dfghjk ( 711126 )

      If you don't already know the answer, then you aren't "actually designing a house to build in California Desert."

    • Re:Building Design (Score:4, Insightful)

      by AmiMoJo ( 196126 ) on Friday December 07, 2018 @05:44PM (#57768210) Homepage Journal

      Can you describe these requirements in detail? Seems like having solar on the roof (PV and hot water) would be the most efficient option.

  • by rsilvergun ( 571051 ) on Friday December 07, 2018 @03:29PM (#57767232)
    in 2020 I'd go to the coal miners (who are likely to swing the election) and offer them jobs in gov't run factories building solar panels. That's the kind of infrastructure spending and green jobs that would make a real difference.

    It's all well and good to see what California's doing, but getting onto renewables should be a national effort. Not just to Shave the Whales, but because I'm tired of my country being OPEC's whipping boy. And I'd like to breath cleaner air. My family is prone to lung cancer from smoking, and while I don't smoke I get a lung full of carcinogens every time I go outside.
    • In 2020 I would go to the coal miners and tell them how the RNC wants to have a giant coal bonfire in its national convention to celebrate the usefulness of coal and demonstrate how clean it is.

      Afterwards, the bonfire will be used for a huge book burning party. In the meantime, book publishers will be required to only produce books with a minimum rating of 4 on the Trump Book Flammability scale.
    • Comment removed (Score:4, Insightful)

      by account_deleted ( 4530225 ) on Friday December 07, 2018 @04:09PM (#57767548)
      Comment removed based on user account deletion
    • by Mashiki ( 184564 )

      in 2020 I'd go to the coal miners (who are likely to swing the election) and offer them jobs in gov't run factories building solar panels. That's the kind of infrastructure spending and green jobs that would make a real difference.

      Did you miss something? That's exactly what Obama did and none of the jobs materialized, and the solar panel factories shut down, if they simply didn't go bankrupt in hand. The Obama administration threw assloads of money at this and all you got nothing. Compared to the auto industry which had a least a near-to-full payout on money in several cases, minus the screw-up of selling the stocks held early.

      Hey this is the amount of of power that PV panel is making at the school schooI went to ~25 years ago. [enphaseenergy.com] F

    • by King_TJ ( 85913 )

      You'd probably also need to offer a lot of new jobs to railroad employees. The railroads, especially on the East coast of the U.S., transport coal as one of their primary customers. As coal is killed off, it also takes freight rail with it.

  • by froggyjojodaddy ( 5025059 ) on Friday December 07, 2018 @03:43PM (#57767358)
    I'm being serious. I had solar panels installed on half my roof a few years ago. They completely cover the shingles and when it rains, barely any rain/water ends up on the shingles. It just sheets away on the panel itself. Same for snow.

    I bet, in 30 years time when the shingles on the other side have to be replaced, the ones under the panels will be pristine. There's still a 2" gap between the shingle and panel so airflow can evaporate any moisture but the elements aren't beating down on them.

    The cost of replacing shingles should probably be factored into the overall cost of the panels - which are coming down in price year over year.
    • We have some people around us that have a large range of solar panels on the roof, like yours they cover most of the shingles... however I've always wondered if that many support struts being attached to the roof did not create a lot of opportunity for leaks over time.

      That's why I've been kind of waiting for true solar shingles, which would act like real shingles and be more durable also. They seem to be coming along really slowly though in terms of wider adoption, and it seems like they would probably be

    • by King_TJ ( 85913 )

      When I had my panels put up, I suspected they'd have that benefit too of prolonging the life of the shingles under them.

      Problem I ran into was, they didn't want to install panels that covered the entire roof, like you describe. I was told that building codes prohibited that, in fact -- and a gap had to be left between the panels and the edges of the roof.

  • by supernova87a ( 532540 ) <kepler1@@@hotmail...com> on Friday December 07, 2018 @03:49PM (#57767414)
    This kind of thing interests me in how and when a government needs to push their people to make a change for their own good? Take the example of mandating energy efficient appliances that cost more now but save people in the long term.

    The laissez-faire in me says that people should be allowed to do what they find most economically rational and desired, within the rules of the market and forecasts of costs that they believe.

    On the other hand, most / many people will not do something unless required to, and then later they get mad when energy costs (for example) suck 50% of their paycheck. cf. Paris riots right now.

    So what is a government to do? Act in its (society's) long-term interest and piss some people off who think it's not in their short-term interest? Or act in government's short-term interest to help people now, but face long-term costs that they didn't act deeply enough to address?

    I think in democratic govts, it ends up being the 2nd choice. That is one shortcoming of that way of governing I suppose...
  • by bobstreo ( 1320787 ) on Friday December 07, 2018 @04:03PM (#57767504)

    "Set to take effect in 2020, the new standard includes an exemption for houses that are often shaded from the sun."

    I'll be forming a company to plant full sized shade trees in new developments so they can be exempted. /s

    • If this causes new development to keep existing trees instead of clear-cutting for a new lot, it can only be win-win :D
  • by Fly Swatter ( 30498 ) on Friday December 07, 2018 @04:11PM (#57767560) Homepage
    Now require California to make and use it's own water...
  • by 140Mandak262Jamuna ( 970587 ) on Friday December 07, 2018 @04:12PM (#57767572) Journal
    Pretty soon it would not be needed. The economics are already favoring solar+wind+battery and such mandates might create scarcity and jack prices up.

    We are at the tipping point already. Solar is 1.25 $/watt installation cost at utility levels. Battery is 125 $/kWh at pack level already. We consume 11 Terra Watt hours a day. Making that much at in 8 hours of sunshine would need 1.4 TW of installed capacity, costing 1.75 trillion dollars. We need to store half that energy in battery for night use, so at 125 $/kWh we need 750 billion in battery. Works out to 2.5 trillion dollars. Interest on that investment would be 100 billion a year at 4%. This cost needs to be added to annual production 11 Twh /day * 365 days, 4 billion kwh, works out to 2.5 cents per kWh. Electricity retails for about 6 cents/kWh, not counting distribution. Fuel, the sunlight, is free. So only other cost is maintenance of equipment. It is far simpler to maintain solar panels than powerplants. So the economics will work out.

    The existing power plants all have life running into decades. But as they die off, replacement will be solar panels and batteries.

    It makes economic sense to use solar, wind and batteries. Whether or not you believe in climate change or environments, pure economics is going to drive this industry.

    Soon the traditional fossil fuel companies and powerplants will come with hats in hand begging for tax payer assistance.

  • Here we are a century and change later. People are apparently still confused about efficiency and economies of scale. Apparently way too hard to grasp increased efficiency and less environmental impact is achieved when done at scale rather than thru piecemeal generation.

    But this is California the land of bureaucratically imposed artificial scarcity whether energy or housing the state does its level best to fuck over its citizens for no reason.

  • by smoot123 ( 1027084 ) on Friday December 07, 2018 @04:35PM (#57767744)

    So, here's what's interesting. The new autocratic dictates...er...breakthrough regulations don't require you have the panels on your house. TFA mentions you can pool together and install the panels somewhere else if you'd like.

    What I don't know is how far away those panels can be. Can I put them 100 feet away? 100 meters? 100 miles? Because what I'd like to do is buy a 5 kW share of a solar farm in the middle of the Mojave desert. I expect that will be, by far, the cheapest way to install and maintain "my" panels, and keep them upgraded as solar technology improves.

    Of course, this begs the questions of why couldn't I buy a share of a wind farm instead but I guess the fine people on the building codes committee thought about that and realized there is no doubt that solar panels are and always will be the most economical and effective approach. Wow, I wish I was as smart as they are! I can't even tell what the price of eggs will be next week let alone the relative price of solar vs. wind 20 years from now.

  • by WindBourne ( 631190 ) on Friday December 07, 2018 @05:07PM (#57767958) Journal
    Rather than require a set size of solar, they need to instead require new homes to install enough UNSUBSIDIZED AE (likely solar) so that the energy => the energy used by HVAC. By doing this, it enables developers to figure out how best to build things. In addition, utilities that will fight solar, will not fight this. After all, they will technically have to buy the extra energy. This approach makes a winner of all.

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