941all-electric
New Member
Back in 2019, Jack Rickard argued that UL-1741 Supplemental Annex Phase 2 allowed utilities to use frequency modulation to taper the amount of homeowners' rooftop solar the grid absorbed. This was ostensibly to deal with the duck curve issue. But homeowners would have no idea this was happening. Utilities could treat rooftop solar as discretionary peaker plants. See starting at the 48min mark here, and stay with it after the cut 1-2 mins in:
Has anyone else looked into this? Would love for Will's take.
FWIW, people's perspectives on that will guide my purchasing decision:
Where I live, I still have 1:1 net metering (albeit with a $25 min bill), but outages are also an issue so a battery is a big part of the draw.
I'm quoted $35k-$40k for a grid-tie with a single Tesla Powerwall 3 (14kWh NMC chemistry!).
But for $20k, I could buy a 10kW split-phase victron system, 28kWh EG4 battery, 240V-200A Victron MPPT, and still have $15k-$20k left over for installation costs. Albeit, no ability to sell back to the grid.
Has anyone else looked into this? Would love for Will's take.
FWIW, people's perspectives on that will guide my purchasing decision:
Where I live, I still have 1:1 net metering (albeit with a $25 min bill), but outages are also an issue so a battery is a big part of the draw.
I'm quoted $35k-$40k for a grid-tie with a single Tesla Powerwall 3 (14kWh NMC chemistry!).
But for $20k, I could buy a 10kW split-phase victron system, 28kWh EG4 battery, 240V-200A Victron MPPT, and still have $15k-$20k left over for installation costs. Albeit, no ability to sell back to the grid.