Dominion Energy (SC)

Net metering & export

Net Metering Allowed

1

Post Solar Billing Method

Net Metering

Net Excess Generation Notes

Solar Choice is essentially just like Net Metering, except excess energy is credited back to the customer based on when that energy was generated (on-peak or off-peak). Below I have summarized the program. Let me know if you have any other questions.

• The customer will offset their electric bill for the energy they generate and use in their home. This is a 1 for 1 kWh credit on their bill for any on-peak or off-peak energy they generate.

• All excess energy will carry forward to the next month’s billing, and to the next, until it is used.

• Excess on-peak energy credits will be applied to on-peak kWh charges (energy received from DESC) in future months.

• Excess off-peak kWh credits will be applied to off-peak kWh charges (energy received from DESC) in future months.

• In November of every year, any excess kWh credits will be zero-out and the customer will receive a credit on their bill for the excess kWh at Avoided Cost, which is currently $0.03363/kWh.

• The basic facility charge for Solar Choice is $13.50/month, which is slightly higher than the normal residential basic facility charge of $9.00/month.

• Rate 5 has always existed, so solar and non-solar customers pay the same on-peak and off-peak rates. The Basic Facility Charge for non-solar customers is $13.00/month and for solar customers it is $13.50/month.

• The $1 charge is added as a line item on the customer’s bill as “Renewable Energy Resource”. If they are an existing customer, that charge is already on their bill and another would not be added.

Rebates Offered

0

Allows Standby

1

Interconnection & taps

Approval Req To Install

Yes

Interconnection Level

3

Supply Side Taps Allowed

1

Line Taps Allowed

1

Load Taps Allowed

1

Tap Criteria

Taps allowed in Meter Can, utility prefers piercing taps when doing so.

MPU Rules

When swapping or upgrading the meter, a main disconnect must be moved (or added) to the exterior.

Automatic Transformer Upgrade Size

0

Meter Aggregation Allowed

0

System size & offset

System Size Restrictions

20

System Size Restriction Type

AC kW

System Size Battery Included

0

System Size Includes Existing Systems

1

Offset Type

Combination

Offset Value

100

Offset Calculation Basis

Historical

Offset Calculation Period

12

Industry Standard Watts Sqft

2

System Offset Notes

Customers can offset up to 100% of their electrical usage without exceeding 20 kW for residential customers and 1,000 kW for non-residential customers. Dominion Energy uses a customer’s annual electric usage and a capacity factor of 1,589 to determine the amount of solar a customer can have. FORMULA: CUSTOMER USAGE (kWh) (365 DAYS * 24 HRS PER DAY * CAPACITY FACTOR * DC/AC CONVERSION) The "Residential Information Sheet" is required for any customer that has less than 7 months of electric usage.

If usage is under 6 months the nem residential info sheet in the files need to be filled out and uploaded to the projects page

Offset Calc Tool

Historical Usage

Metering & disconnect

Production Meter Required

Yes

Production Meter Position

Inv-PM-Disco-POI

Production Meter Labeling

Production Meter

AC Disconnect Required

Yes

AC Disconnect Labeling

Visible Lockable Labeled Disconnect

Allowed Meter Adapter

None

Plans & docs

Site Plan Reqs

• list the number of panels, pitch and azimuth of each mounting plane

SLD Reqs

Relay Meter Orientation = Under/Over

• Production Meter must be wired like this: Inv > bottom of PM > AC Disco > POI. (CHECK THIS FILE BEFORE PRINTING CAD - THIS MUST BE SHOWN CORRECTLY - "Dominion Production Meter TLD" in the Files section of this page.)
• Production Meter must be wired like this: Inv > bottom of PM > AC Disco > POI. (CHECK THIS FILE BEFORE PRINTING CAD - THIS MUST BE SHOWN CORRECTLY - "Dominion Production Meter TLD" in the Files section of this page.)

• Complete “Single Line Diagram” document in the Files section of this page. Follow instructions in the "Note" section. 1. If required, a Non-Utility Meter Socket may be installed between the PV Modules and the Co-Gen Meter Socket. 2. The PV Disconnect shall be load break rated and shall provide a visible air gap and be lockable in the off position. Locate immediately adjacent to the service meter. It must be accessible to the power company personnel 24/7. 3. Specify the point of common Coupling for the solar and existing house wiring. Check box if Main Service Panel is located indoors.
• Only one PV production meter allowed per home. If there is existing PV then need to use combiner load panel and use PV meter and disconnect

Energy Storage System

• A separate, visible, lockable AC Disconnect is required between the Tesla Gateway and Utility Meter
• NON BACKUP BATTEY (PRODUCTION METER BETWEEN JUNCTION BOX AND INVERTER OR CB
• For PW3, add AC Disconnect between meter and Gateway .

Electric Service Reqs

Please refer to Solar Equipment Requirements

• AC Disconnect Switch must be: Accessible to Dominion Energy personnel, = Installed in close and visible proximity to the main meter, Must provide a visible air gap and be lockable in the off position
• Generation Metering must be: Accessible to Dominion Energy personnel, Installed in close and visible proximity to the main meter

Install Reqs

Do not place system in Stand-by Mode. Leave Inverter on, and the turn the AC disconnect off.

This Utility's inspectors will test the system, and if they cannot remove Stand-by they will fail the Witness Test.

Rate Schedule Link

link

Website

link

Phone

(866) 660-3705

Other details

Restrict Inspection

0

Revision Required

0

Mod Swap Requires Planset

1

Address ID

149101

Express Planset Eligible

No