Have the incentive levels for the batteries and the solar been finalized?

Yes. Incentive levels remained the same as originally proposed. $1.10/kWh for batteries and $3.10/watt for solar. See details below.

• Batteries – The $1.10/kWh incentive will cover 100% of a standard battery installation. That said, if major electrical improvements to the home are required (e.g., main service panel upgrades, trenching, etc.) this could result in minor out of pocket expenses for the client.

• Solar – The $3.10/kW incentive will cover between 50% - 90% of a standard solar installation. This was a significant change from our original program assumptions. This change was due to the fact that the CPUC decided that the rating of solar systems would be based not on the systems equipment rating, but rather, it would be based on their old CSI EPBB Rebate Calculator. This calculator derates the system sizing by applying derates based on the individual home’s roof pitch, tilt, azimuth and surrounding shading. Bottom line, the best incentive levels will be for moderately pitched roofs facing S or SW with limited to no shade. The further the roof is oriented away from S or SW and the more shade on the roof, the lower the incentive level will be.

Please note: We have run all possible combinations of roof pitch, tilt, azimuth and shading and determined that 90%+ of homes will receive rebate incentives that will cover between 50% - 90% of a solar system installation.

Will there be a sizing cap on the incentives for either solar or batteries?

It appears that PG&E will most likely set a cap for both solar and battery incentive levels. While we currently do not know what these caps will be, PG&E’s Program Administrators (PA’s) have discussed the following:

• Batteries – Similar SGIP programs in the past have set a 30kWh limit and they seem to be comfortable with this sizing per project. We do not currently think they are considering lowering this cap. A 30kWh battery system is two large Tesla or Franklin batteries. TBD.

• Solar – Similar SGIP programs in the past have set caps between 10kW – 15kW. Current loose discussion with PG&E PAs indicates that they may be considering setting the cap at this lower limit. Even if the cap was set to 10kW, this is still a big system. 10kW is approximately 22 panels and would cover 100% of most people’s annual electrical usage. TBD.

Will there be a sizing cap on the incentives if I am applying for both batteries and solar?

There has never been a combined solar + battery SGIP program and PG&E’s PA’s are unclear on whether they will set a total project limit for customers applying for both battery and solar incentives. The PA’s have openly discussed that a possible “per applicant” cap should be considered as the total $110 million fund is a fairly small budget, and that allowing individual applicants to take full advantage of both the battery and solar incentives could result in rapid depletion of the SGIP funds and would result in too few applicants being able to take advantage of the program. TBD.

Will this SGIP program allow solar system sizing up to 150% of last 12 mo.’s usage?

Yes. The final CPUC decision confirmed that we can size solar systems up to 150% of the client’s last 12 months of electrical usage. That said, as noted above, they are considering setting a per project cap on solar system sizing. This potential cap could limit our ability to size solar systems up to 150% of historical usage.