Is solar green?

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  • Mike90250
    Moderator
    • May 2009
    • 16020

    #76
    Originally posted by jflorey2
    LA is almost certainly going to see blackouts this summer - but it isn't due to anyone cutting anyone off. They had a massive natural gas leak and they shut down one of LA's largest natural gas reservoirs. Thus, ironically, the problem won't be due to lack of generation (either baseload or peakers) but rather the lack of fuel to run that generation....
    That storage reservoir is useless now, after leaking for months, raw greenhouse gas leaking into the air, Would have been better to have lit it and burned it to Co2, which can be recycled.

    And the state of california is on the verge of bankrupt. (since 2011 the reports have been stacking up)
    google california state bankruptcy It's just that there is no legal way defined anywhere for a state to go bankrupt, so the checks keep getting written for now, and somebody else will deal with it. The State & Teachers retirement fund is underwater too,

    Powerfab top of pole PV mount (2) | Listeroid 6/1 w/st5 gen head | XW6048 inverter/chgr | Iota 48V/15A charger | Morningstar 60A MPPT | 48V, 800A NiFe Battery (in series)| 15, Evergreen 205w "12V" PV array on pole | Midnight ePanel | Grundfos 10 SO5-9 with 3 wire Franklin Electric motor (1/2hp 240V 1ph ) on a timer for 3 hr noontime run - Runs off PV ||
    || Midnight Classic 200 | 10, Evergreen 200w in a 160VOC array ||
    || VEC1093 12V Charger | Maha C401 aa/aaa Charger | SureSine | Sunsaver MPPT 15A

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    • SunEagle
      Super Moderator
      • Oct 2012
      • 15125

      #77
      Originally posted by jflorey2
      LA is almost certainly going to see blackouts this summer - but it isn't due to anyone cutting anyone off. They had a massive natural gas leak and they shut down one of LA's largest natural gas reservoirs. Thus, ironically, the problem won't be due to lack of generation (either baseload or peakers) but rather the lack of fuel to run that generation.

      (It _might_ affect us down here in the San Diego area, but it's unlikely - and we have backup anyway.)
      What exasperates the problem is reducing the number of different sources of fuel or types of power generation. Unless you have enough spare capacity (which is costly for the POCO to maintain) you always run the risk of not having enough should an issue (like your natural gas problem) crop up and bite you in the ass.

      That is what happened here in Florida. We had a large number of generating plants down for maintenance (usually not needed in the Winter because of lower peak load demand) and thought we had unlimited supply of power from Georgia. Freezing weather changed all that for both states.

      You know a big pile of coal will last a long time just sitting there and can be used in an emergency if needed.

      Comment

      • DanKegel
        Banned
        • Sep 2014
        • 2093

        #78
        http://www.energy.ca.gov/2016_energy...eles_Basin.pdf has a lot of details about the possibility of blackouts and the plan to avoid them.

        As for California going bankrupt - Gov Brown has run a tight financial ship. He's more fiscally responsible than the national GOP.

        Comment

        • jflorey2
          Solar Fanatic
          • Aug 2015
          • 2331

          #79
          Originally posted by Mike90250
          That storage reservoir is useless now, after leaking for months, raw greenhouse gas leaking into the air, Would have been better to have lit it and burned it to Co2, which can be recycled.
          One of the problems was that the utility really didn't want anyone to know how bad the leak was. Until a third party took an IR picture of the leak showing the plume, there wasn't a lot of public pressure to get it fixed. Thus I have a feeling that flaring the leak would have been out of the question for them. (Well, that and the fact that it was a few blocks from a suburb . . . .)

          Comment

          • DanKegel
            Banned
            • Sep 2014
            • 2093

            #80
            Iirc they did consider flaring it, but decided it was too dangerous.

            The field still has some gas in it, they left enough to get through the winter, even with it degraded.

            Comment

            • Wy_White_Wolf
              Solar Fanatic
              • Oct 2011
              • 1179

              #81


              Comment

              • SunEagle
                Super Moderator
                • Oct 2012
                • 15125

                #82
                Originally posted by Wy_White_Wolf
                Well that is surprising. While I always have indicated that using RE for 100% of our power source could never be able to replace all types of fossil & nuclear fuel generated power worldwide, I am still surprised of the energy losses calculated in that paper when you considered a soup to nuts approach. That makes me sad.

                Comment

                • DanKegel
                  Banned
                  • Sep 2014
                  • 2093

                  #83
                  That paper reads like an ad for the nuclear power industry. He assumes lifetime of solar panels is 25 years, but the lifetime of a nuclear plant is 60 years... weren't most current plants designed for 40 years?

                  http://www.solarbankability.org/file...V_projects.pdf quotes a study that gives the MTBF for solar panels in utility-scale installations of 6666 years (!); inverters, not panels, were the cause of most failures. Presumably as time goes on we'll get better at making reliable inverters.

                  I'll have to read it more carefully, but for the moment, it doesn't seem very credible.

                  Comment

                  • Sunking
                    Solar Fanatic
                    • Feb 2010
                    • 23301

                    #84
                    Originally posted by jflorey2
                    I generate more power than I use and pay an average of about $15 a month to use the utility as a big battery. Charge my EV with it too, so I don't have to pay this week's gas prices. If that makes me a SLAVE then I am glad to be one; I enjoy the freedom.
                    Whoopee. I pay 7-cents for all I want any time of day. If I use more than 2500 Kwh in a month the price goes down. I pay no income taxes. Top that.
                    MSEE, PE

                    Comment

                    • jflorey2
                      Solar Fanatic
                      • Aug 2015
                      • 2331

                      #85
                      Originally posted by Sunking
                      Whoopee. I pay 7-cents for all I want any time of day. If I use more than 2500 Kwh in a month the price goes down. I pay no income taxes. Top that.
                      I can go snowboarding in the morning, go surfing in the afternoon and then hit the best breweries in the world at night. Top that! (AND still pay $15 a month for all the power I need.)

                      Comment

                      • SunEagle
                        Super Moderator
                        • Oct 2012
                        • 15125

                        #86
                        Originally posted by jflorey2
                        I can go snowboarding in the morning, go surfing in the afternoon and then hit the best breweries in the world at night. Top that! (AND still pay $15 a month for all the power I need.)
                        Sounds like a great play land.

                        Now all you have to worry about is lack of rain or them pesky earthquakes.

                        Comment

                        • jflorey2
                          Solar Fanatic
                          • Aug 2015
                          • 2331

                          #87
                          Originally posted by SunEagle
                          Sounds like a great play land.
                          Now all you have to worry about is lack of rain or them pesky earthquakes.
                          And the brush fires, and the cost of housing, and the urban pseudopods that LA keeps extending in every direction . . .

                          Comment

                          • SunEagle
                            Super Moderator
                            • Oct 2012
                            • 15125

                            #88
                            Originally posted by jflorey2
                            And the brush fires, and the cost of housing, and the urban pseudopods that LA keeps extending in every direction . . .
                            If I was younger and had interest in snowboarding or surfing I would be jealous. But except for a few good things I can think of (like those breweries) I really wouldn't want to live in CA.

                            Comment

                            • easye
                              Member
                              • Jun 2014
                              • 87

                              #89
                              Based on my crappy research the best I can tell your carbon footprint remains level until about the time you break even on the cost of install. After that your footprint goes to zero as well as your electricity costs. As for batteries, I've not researched that, but I would imagine you would never get to even unless you had a battery that could provide all your needs for more that 15 years.

                              Comment

                              • SunEagle
                                Super Moderator
                                • Oct 2012
                                • 15125

                                #90
                                Originally posted by easye
                                Based on my crappy research the best I can tell your carbon footprint remains level until about the time you break even on the cost of install. After that your footprint goes to zero as well as your electricity costs. As for batteries, I've not researched that, but I would imagine you would never get to even unless you had a battery that could provide all your needs for more that 15 years.
                                You are almost correct. When you hit your ROI point of a solar pv system you then start to save more money then you spent. But if you figured in all of the carbon released to manufacture your pv system and install it your carbon footprint will not go to zero until years after your system pays for itself.

                                Now maybe someone will invent a new carbon free energy storage system that lasts more than 15 years. But as of today there isn't any battery chemistry that is carbon free or worse toxic waste free. I am more concerned about all them batteries people will throw away then the amount of C02 in the air.

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