I put down a deposit in October of 2020, the system is still not installed, but thats a different story. Tesla has been the delay not permitting. National Grid is currently reviewing everything for interconnection approval then we can schedule install.
The system is 39 340watt panels, (2) powerwall+ units and (2) powerwall 2's. Annual output should be right in line with my annual consumption. Originally the system was planned to have a 10kW SE inverter but Tesla has been phasing those out in favor of their own inverters or powerwall+ units. I would have qualified for the net metering cap exemption with the 10kW SE inverter but I do not with the new proposed system with an inverter size of 15.2kW. Also, the net metering allocation is full at the moment, MA ACA confirmed I would be on a waitlist if I applied.
Given that scenario, I understand it it will be considered a "Qualifying Facility" or QF (and the NG application says so). I will be selling any excess production at the "P-Rate" tariff which I think is tied to the hourly ISO-NE wholesale rate. I understand the wholesale rate is usually around 3 cent's per kWh, but it varies. For comparison the retail rate usually hovers around 25 cents and fixed for each season.
This publication leads me to believe the production or consumption is netted on an hourly basis and credited or billed as such. Monthly netting would be much more beneficial, but that doesn't seem to be the case.
Qualifying facilities and on-site generating facilities
That would mean I would really want to be using power as is it produced or charge the power walls for future consumption as selling to the grid is 10x less compensation as the rate to buy. Is my understanding correct?
Does the SMART compensation play into this at all? I know there is a line item subtracted for the "value of the energy", which when you are part of net metering it's the full retail rate. If you aren't part of net metering is the fairly low wholesale rate subtracted instead? This would mean a larger SMART compensation to offset to low wholesale p-rate tariff sell rate? I really haven't been able to get a clear explanation from anyone at Tesla or the MA ACA or SMART etc when I called them.
I want to be sure I'm understanding how everything is billed/credited so I can utilize my power walls and when we consume power to maximize the financial impact of the electricity produced.
The system is 39 340watt panels, (2) powerwall+ units and (2) powerwall 2's. Annual output should be right in line with my annual consumption. Originally the system was planned to have a 10kW SE inverter but Tesla has been phasing those out in favor of their own inverters or powerwall+ units. I would have qualified for the net metering cap exemption with the 10kW SE inverter but I do not with the new proposed system with an inverter size of 15.2kW. Also, the net metering allocation is full at the moment, MA ACA confirmed I would be on a waitlist if I applied.
Given that scenario, I understand it it will be considered a "Qualifying Facility" or QF (and the NG application says so). I will be selling any excess production at the "P-Rate" tariff which I think is tied to the hourly ISO-NE wholesale rate. I understand the wholesale rate is usually around 3 cent's per kWh, but it varies. For comparison the retail rate usually hovers around 25 cents and fixed for each season.
This publication leads me to believe the production or consumption is netted on an hourly basis and credited or billed as such. Monthly netting would be much more beneficial, but that doesn't seem to be the case.
Qualifying facilities and on-site generating facilities
That would mean I would really want to be using power as is it produced or charge the power walls for future consumption as selling to the grid is 10x less compensation as the rate to buy. Is my understanding correct?
Does the SMART compensation play into this at all? I know there is a line item subtracted for the "value of the energy", which when you are part of net metering it's the full retail rate. If you aren't part of net metering is the fairly low wholesale rate subtracted instead? This would mean a larger SMART compensation to offset to low wholesale p-rate tariff sell rate? I really haven't been able to get a clear explanation from anyone at Tesla or the MA ACA or SMART etc when I called them.
I want to be sure I'm understanding how everything is billed/credited so I can utilize my power walls and when we consume power to maximize the financial impact of the electricity produced.
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