Feeding back to a development grid

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  • TJ119189
    Junior Member
    • Feb 2024
    • 17

    Feeding back to a development grid

    Hello all,
    This question concerns a 'development grid'
    This is the scenario......
    A property developer has completed a residential development.
    He has his own transformer that is hooked up to the external electricity authorities HV (22KV) supply.
    Inside the development, every house has its own meter that is connected to the developers supply.
    If residents have their own solar systems that are feeding back into the developers supply, will this cause any problems for the developers transformer?
    (I'm thinking not a problem, but want to ask other people who may have experience of this).
  • Rade
    Solar Fanatic
    • Aug 2023
    • 106

    #2
    Wow! A whole community living off the grid! That's incredible!

    I would suspect that you would treat the developer's grid as the local power company and any home owner with their own solar service would be treated with net credit service. You don't mention if the developer has power storage (batteries) integral to the architecture.

    Rade Radosevich-Slay
    Tiverton, RI

    Comment

    • Mike 134
      Solar Fanatic
      • Jan 2022
      • 393

      #3
      Sounds like a typical development throughout the USA . Who do they pay for the electric? I'll guess the local utility. As to solar back feeding into the grid with a properly installed and permitted system, no issues.

      Comment

      • TJ119189
        Junior Member
        • Feb 2024
        • 17

        #4
        Originally posted by Rade
        Wow! A whole community living off the grid! That's incredible!

        I would suspect that you would treat the developer's grid as the local power company and any home owner with their own solar service would be treated with net credit service. You don't mention if the developer has power storage (batteries) integral to the architecture.
        That's right, the developer is essentially the local power company.
        The developer charges a rate/unit that is higher than the state electricity supplier.
        No batteries/power storage.....just a large transformer/small substation.

        Comment

        • TJ119189
          Junior Member
          • Feb 2024
          • 17

          #5
          Originally posted by Mike 134
          Sounds like a typical development throughout the USA . Who do they pay for the electric? I'll guess the local utility. As to solar back feeding into the grid with a properly installed and permitted system, no issues.
          They pay the developer for the electric.
          At his rate.....a rate that is higher than the local state electricity supplier.
          Thanks for the confirmation re-feeding back into his grid.

          Comment

          • Rade
            Solar Fanatic
            • Aug 2023
            • 106

            #6
            Originally posted by TJ119189

            They pay the developer for the electric.
            At his rate.....a rate that is higher than the local state electricity supplier.
            Thanks for the confirmation re-feeding back into his grid.
            Wow... that sucks! So then you are incentivized to install your personal solar! I would certainly invest in a storage system for your home.

            I have a 13.12kW solar system on our home with an 18kW battery back up here. The batteries serve as both for emergency power o dedicated circuits should the grid lose power and as supplemental power for the whole house. In "Self Supply" mode, especially this time of year (high Summer) we are drawing watts (not kilowatts) from the grid if at all. On the weekends when we're not up predawn, the batteries will have sustained the house overnight and the panels will generally have the batteries fully recharged by mid morning. During the weekdays, we bottom out the batteries sometime in the 5AM hour followed by minimal draw from the grid. On battery settings, you just learn to watch the weather forecasts and plan accordingly for storms and cloud cover.

            So food for thought. If you really like the housing development, location and region - it might be a worthy investment for the long term.

            Rade Radosevich-Slay
            Tiverton, RI

            Comment

            • TJ119189
              Junior Member
              • Feb 2024
              • 17

              #7
              Originally posted by Rade

              Wow... that sucks! So then you are incentivized to install your personal solar! I would certainly invest in a storage system for your home.

              I have a 13.12kW solar system on our home with an 18kW battery back up here. The batteries serve as both for emergency power o dedicated circuits should the grid lose power and as supplemental power for the whole house. In "Self Supply" mode, especially this time of year (high Summer) we are drawing watts (not kilowatts) from the grid if at all. On the weekends when we're not up predawn, the batteries will have sustained the house overnight and the panels will generally have the batteries fully recharged by mid morning. During the weekdays, we bottom out the batteries sometime in the 5AM hour followed by minimal draw from the grid. On battery settings, you just learn to watch the weather forecasts and plan accordingly for storms and cloud cover.

              So food for thought. If you really like the housing development, location and region - it might be a worthy investment for the long term.
              Many thanks for your reply.
              I'm much the same as you outline....wear a mourning armband if I draw anything from the grid: -).

              It was the effect of other residents feeding back into the developers grid supply that was perhaps a concern.
              I think I was concerned about nothing.

              Comment

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