Keeping you informed: A meter-mounted device (MMD) is a customer-owned extension of the meter socket installed between the meter socket and the company’s meter and allows for the connection of emergency generation, solar generation, whole-house surge suppression, etc. The MMD form is included in the Customer Generation application and will need to be uploaded to be considered.
Customer Meter-Mounted Device List
Customer Meter-Mounted Devices FAQ
Keeping you informed: Effective June 1, 2024, all new inverter-based Customer Generation applications will be required to use UL 1741 SB certified inverters along with provided settings. These inverters will meet the IEEE 1547-2018 standard that updated the specifications and testing for the interconnection of distributed energy resources (DER).
Keeping you informed: To remain eligible for service under Schedule 135 or Schedule 136, a customer may increase the capacity of a grandfathered Eligible Generating Plant by no more than 15% of the originally installed nameplate capacity. This policy is applicable to systems > 10 kW. For systems below 10 kW, customers may increase their system size up to 10 kW.
Billing and tariff
- Utah Aggregation Form
- Utah Schedule 135 – Grandfathered Net Metering Program – closed to new applicants
- Utah Schedule 136 – Transition Program – closed to new applicants
- Utah Schedule 137 – Net Billing Program
- How to read your Schedule 135 net meter
- How to read your Schedule 136 transition program meter
- Understanding your Schedule 136 bill
Brochures and useful information
- Overview: Understanding Net Billing
- Connecting to Rocky Mountain Power's Energy System
- Key Components of a Solar Generation System
Technical resources
- Policy 138 - Distributed Energy Resource (DER) Interconnection Policy
- Effective Grounding for Customer Generation Facilities
- Frequently Asked Questions: Transient Overvoltage Management for Distributed Energy Resources
- Example Site Plan
- Example One-line Drawing
- Examples of Required Labeling
- Battery System Interconnections – Interim Technical Requirements
- Battery ESTOP and Solar Disconnect Example
