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Hawaii gives us a glimpse of the future of what solar will look like in the US. They are the hottest solar market in the US due to having the highest electricit

by hohead 13y ago

Hawaii gives us a glimpse of the future of what solar will look like in the US. They are the hottest solar market in the US due to having the highest electricity rates combined with excellent conditions for solar. The primary utility in Hawaii (HECO), has started denying many permits to homeowners due to grid saturation on many circuits. Infrastructure investments must now be done by HECO to allow for increased solar adoption - something that may not be in the best interest for the utility.

thuuuomas 13y ago
I'm uninformed, "grid saturation" meaning what?
- simcop2387 13y ago
  I'm not positive, but I might imagine that it's that the solar power generated by that particular grid either equals or exceeds the amount used by it. If there's multiple grids it could be that the residential area is nearly self sustaining during the day, and they don't have the capability to move that generation successfully to the other places that need it because the grid interchanges weren't built with that in mind.
  - URSpider94 13y ago
    That's exactly what it is. See presentation here: http://www.heco.com/vcmcontent/StaticFiles/pdf/LVM/LVMMECOPublicNEW.pdf http://www.heco.com/vcmcontent/StaticFiles/pdf/LVM/LVMMECOPu... It appears that there are neighborhoods in Hawaii where the PV generation capacity is approaching the max load of the circuit.
toomuchtodo 13y ago
Can you simply disconnect from HECO and self-generate?
- hohead 13y ago
  You could, but you would need to purchase and setup batteries.
  - toomuchtodo 13y ago
    The other option is to grid-tie, but agree not to sell any power back to them (which can be configured in the inverter). You would then use utility power when you don't have enough solar output to meet your needs. Disclaimer: I have read WAY too much Home Power magazine over the last decade. I could design said system in about 20 minutes, part numbers and all. [http://www.homepower.com/ http://www.homepower.com/]
    - URSpider94 13y ago
      For most home solar installations, this would dramatically skew the financial break-even for solar installation.

by hohead 13y ago

thuuuomas 13y ago

I'm uninformed, "grid saturation" meaning what?

simcop2387 13y ago
I'm not positive, but I might imagine that it's that the solar power generated by that particular grid either equals or exceeds the amount used by it. If there's multiple grids it could be that the residential area is nearly self sustaining during the day, and they don't have the capability to move that generation successfully to the other places that need it because the grid interchanges weren't built with that in mind.
- URSpider94 13y ago
  That's exactly what it is. See presentation here: http://www.heco.com/vcmcontent/StaticFiles/pdf/LVM/LVMMECOPublicNEW.pdf http://www.heco.com/vcmcontent/StaticFiles/pdf/LVM/LVMMECOPu... It appears that there are neighborhoods in Hawaii where the PV generation capacity is approaching the max load of the circuit.

toomuchtodo 13y ago

Can you simply disconnect from HECO and self-generate?

hohead 13y ago
You could, but you would need to purchase and setup batteries.
- toomuchtodo 13y ago
  The other option is to grid-tie, but agree not to sell any power back to them (which can be configured in the inverter). You would then use utility power when you don't have enough solar output to meet your needs. Disclaimer: I have read WAY too much Home Power magazine over the last decade. I could design said system in about 20 minutes, part numbers and all. [http://www.homepower.com/ http://www.homepower.com/]
  - URSpider94 13y ago
    For most home solar installations, this would dramatically skew the financial break-even for solar installation.