Virtual Net Energy Metering overview
Virtual Net Energy Metering (NEMV)
- There are various types of Virtual Net Energy Metering programs, including standard
- NEM2V, NEMV2MSH that works with the Multifamily Affordable Solar Housing (MASH) incentive program and the New Solar Homes Partnership incentive program; and
- NEM2VSOM that works with the SOMAH incentive. This page is focused on standard NEM2V.
NEM2V allows a "Property" with multiple accounts (Service Agreement IDs) that are individually metered to use the output from a renewable generator (e.g. solar panels) account to provide credits to offset the consumption and charges on other benefiting accounts, which are serving a tenant or common area with no other generating facility interconnected with PG&E on that account. . The generation account meter monitors the amount of total solar generation and should have no load other than that required by the renewable generator. The benefitting accounts are allocated based on a percentage of the solar-generated electricity as predetermined by the building owner or manager.
A Property is defined as:
A Property is defined as: A cluster of multi-tenant and multi-meter buildings, facilities or structures that are under the control of a single Owner or Operator built to serve a common function, such as a housing complex or a multi-tenant complex, on an integral parcel of land undivided, unless the division is a street, highway, or similar public thoroughfare, which is permissible provided no other unrelated Single Enterprises (defined as a separate business or other individual activity carried on by a customer but does not apply to associations or combinations of customers) break up the otherwise integral parcel and cluster of multi-tenant and multi-meter buildings, facilities or structures.
Qualifications
Criteria for NEMV includes:
- The generator needs to be sized to produce not more than the total annual energy consumption (kWh's) of all benefitting accounts.
- All benefiting meters must be on the same property as the renewable generating meter.
- The building must have service through PG&E, a CCA or and ESP.
- A customer can only have one generating account.
- The benefiting meter must not participate in another net energy metering program or the RES-BCT program.
- The generator has no load other than the renewable generating system.
- The Generating account and all the benefitting accounts have to be on an applicable TOU rate.
How to Apply
Prior to interconnecting generation projects to PG&E's distribution system, an interconnection application must be submitted, including some or all of the following documents:
| Item Requested | Purpose | |
|---|---|---|
|
Electric Rule 21 application provides PG&E with important customer, contractor and system equipment information about the project. |
||
|
Depending on the technology being interconnected, one of these forms must be attached to the Electric Rule 21 online application in order to process the Interconnection Request. |
||
|
Single-Line Diagram |
Single-line diagram shows applicable equipment (generating units, step-up transformers, auxiliary transformers, switches/disconnects and required protection devices/circuit breakers). |
|
|
Interconnection Proposal. Download a sample (PDF, 6.14 MB) Please review all four pages. |
Proposal tells PG&E exactly where a connection will be made in the existing service panel and where the metal socket will be installed. |
|
|
Meter Socket Spec Sheet |
Spec sheet provides the technical details of the meter socket. |
|
|
Form is used to provide the additional data fields required by California Public Utilities Commission (CPUC). |
||
|
Download Excel Spreadsheet NEMV Solar Allocation Form (PDF, 14 KB) (Supplement to appendix A of Form 79-1131) |
Document provides PG&E with the chosen solar percentage allocations for benefiting account meters. |
The customer is advised not to install the project until PG&E has reviewed the interconnection proposal and all other documents listed above. PG&E recommends waiting for notification of approval before moving forward with the installation.
The NEMV interconnection is governed by CPUC rules. The renewable generator must be approved in accordance with all applicable guidelines of Electric Rule 21 and the NEM tariff.
The timeline for approval of the interconnection application depends on the details of the system and the interconnection proposal. Once all documents have been received, a customer can expect approval or a request for more information within 10 business days.
Download generator interconnection process timeline (PDF, 154 KB).
Interconnection Requirements
The following items are required for PG&E to issue written permission to operate a generating facility. After receiving approval of interconnection paperwork and the project is installed, submit the following to NEMVGEN@pge.com:
| Item Requested | Purpose | |
|---|---|---|
|
Signed-Off Building Permit |
Completed permit indicates that the finished project has been inspected and approved by the local building authority. |
|
|
Meter Release/ Green Tag |
Tag indicates that the new meter socket installed has been approved by the local building department. |
Costs
The costs to apply to the NEMV program have to do with the type of meters being installed. For the generator account:
| Meter Type | Cost | |
|---|---|---|
|
Self-Contained Meter Installation (600V) |
$788.33 |
|
|
Transformer-Rated Meter Installation (600V) |
$1,712.89 |
|
|
Primary Transformer-Rated Meter Installation (5 kV) |
$6,800.25 |
|
|
Primary Transformer-Rated Meter Installation (15 kV) |
$7,410.16 |
|
|
Primary Transformer-Rated Meter Installation (25 kV) |
$12,799.41 |
It is important to note that potential upgrades to PG&E's grid may be necessary, and a customer may be required to pay for the system upgrade, depending on the type of upgrade, in accordance with Electric Rule 21.