UNSE - UniSource Energy Service

Net metering & export

Net Metering Allowed

0

TOU Utility

1

Post Solar Billing Method

Export Rate

Solar Export Type

Fixed kWh

Solar Export Rate

0.0839

Solar Export Value Notes

Reviewed annually each October. Each customer's export rate will be applicable for 10 years from the time of their interconnection.

Net Excess Generation Notes

All kWh exported to the utility grid is paid at the RCP rate, currently $0.0839. Excess credits each month roll over to the next month. Any remaining credits over $10 in October of each year are paid out to the customer. The RCP rate is usually adjusted annually; customers are compensated for up to 10 years at the RCP export rate in place at the time they requested interconnection.

Rebates Offered

0

Deregulated

0

Allows Standby

0

Interconnection & taps

Approval Req To Install

Yes

Interconnection Level

3

Line Taps Allowed

1

Load Taps Allowed

1

Tap Criteria

• IF UTILITY METER IS IN A SEPARATE METER SOCKET AN APPROVED JUNCTION BOX MUST BE USED WITH LUG-TYPE CONNECTORS (MILBANK, CATALOG No. K4977-INT) JUNCTION BOX SHALL BE HOFFMAN CATALOG# A12R126 OR EQUAL. REVIEW SR-702 FOR MORE DETAILS ON LINE SIDE TAPS.
• 1-Line needs to list the specific connectors that will be used to complete the line side tap (manufacturer, model/serial number).

Automatic Transformer Upgrade Size

0

System size & offset

System Size Restrictions

0

System Size Restriction Type

No Restrictions

System Size Battery Included

0

System Size Includes Existing Systems

0

Offset Type

Percentage

Offset Value

125

Offset Calculation Basis

Historical

Offset Calculation Period

12

Industry Standard Watts Sqft

2

System Offset Notes

Up to 125%.

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

Meter Adapter Requirements

Meter adapters including Tesla Backup Switch are not allowed

Allowed Meter Adapter

None

Plans & docs

Site Plan Reqs

• AC Disconnect and dedicated PV meter to be within 10' of main service panel.
• UniSource requires an external main breaker, or means of disconnect, for all customer loads. If a customer has an external meter socket only, with an internal load center and main breaker, then an external main breaker will need to be installed as part of the solar project. 
• All plan sets submitted for approval will require an elevation view of the service and required dg equipment. Detail the height of the SES/main panel, DG (PV) meter, and the AC disconnect from the ground, and the distance between the equipment. The maximum height on equipment for Unisource customers in Mohave County is 72" and the minimum is 48" (See Elevation view Example in files section)

EXISTING SYSTEM:

• Need to remove the existing DG Meter from the design

SLD Reqs

All Jobs

• A single line diagram must be included in the plan set along with a three-line diagram otherwise the utility will reject it. INV > PM > Disco > POI The type of PM is the Milbank 5929. - EV Charger Inverter is not allowed

For Battery Jobs

• Utility Isolation Disconnect required between Main Panel and Gateway. See SR-710 for more details on interconnection requirements for AC coupled energy storage systems.
• Meter adapters including Tesla Backup Switch are not allowed

Install Reqs

UES Design Review and Approval

Prior to installation of customer interconnection facilities, customer shall submit a distributed generation interconnection application to UES review and written approval. Required documentation to be furnished with the application may include an electrical one-line diagram, an electrical three-line diagram, AC and DC control schematics, plant location diagram and site plan.

Technical Requirements

• See "Electric Service Requirements for Small Interconnected Distributed Generation Sources SR-1.22" in Files section of this page, or click this link to view online <https://www.uesaz.com/doc/renewable/SR-122.pdf)>
• All systems shall be installed with a horizontal tilt angle between 10 degrees and 60 degrees, and an azimuth angle of +/- 100 degrees of due south.
• A system must include a dedicated performance meter (on grid-tied systems, supplied by UES) to allow for monitoring of the amount of electricity produced.
• Photovoltaic modules must be covered by a manufacturer’s warranty of at least 20 years.
• All photovoltaic modules must be certified by a nationally recognized testing laboratory as meeting the requirements of UL Standard 1703.
• All other electrical components must be UL listed.
• The inverter must be certified as meeting the requirements of IEEE-1547 - Recommended Practice for Utility Interface of Photovoltaic Systems - and it must be UL 1741 certified.
• The utility meter, inverter, and utility disconnect will be installed in a location readily accessible by UES during normal business hours.
• PV Production meter sets and net meter exchanges will be delayed for any project that has not followed the Installer PowerClerk Process (https://www.uesaz.com/wp-content/uploads/2017/09/installer_powerclerk_process.pdf).

Meter Num Req SLD 3LD

0

ESID Num Req SLD 3LD

0

Site Plan Notes

. If the main service disconnect is currently located inside of the home, a separate external gang operated, lockable, knifeblade disconnect, must be installed outside of the home within the immediate vicinity of the Utility Revenue meter, or the customer will need to upgrade to an all-in-one main service panel installed outside the home.

Rate Schedule Link

link

Website

link

Phone

(866) 467-1229

Other details

Restrict Inspection

0

Address ID

112484

Express Planset Eligible

No