Tracking system: Midwest Renewable Energy Tracking System (M-RETS)
Mississippi's net metering rule, established at the end of 2015, does not credit solar customers the full retail rate, but the utility avoided cost and a distributed generation premium. Although the incentive is not as favorable as the full retail rate that most states offer, Mississippi does include all solar systems ≤2 MW in the program. Midmarket customers in the TVA service territory may be eligible for incentives.
Mississippi's net metering rules only allow instantaneous generation and use to be credited at retail rate. Customers' electricity contributions to the grid will only be credited at the utility's wholesale electricity rate plus an additional 2.5 cents per kWh premium.
System size limit: 20 kW for residential, 2 MW for non-residential
Aggregate cap: 3% of the utility's total system peak demand in the previous year
Credit: Customers are credited at the utility avoided cost plus DG adder of $0.025/kWh (total estimated 7 to 7.5 cents per kWh)
RECs: The customer retains ownership of RECs. If the customer receives benefits from the DG adder while selling electricity to the utility, then the RECs are transferred from the customer to the utility.
Meter aggregation: Not specified
In 2015, Mississippi approved its distributed generation interconnection standards for all electric utilities, including electric cooperatives. All distributed generation systems must be capable of being isolated from the electric utility. The rules provide three levels of review depending on system capacity.
|Eligible Systems||Type of Interconnection|
|Certified inverter-based systems ≤ 20 kW||Level 1: 15 days approval, no interconnection fee|
|Systems 2 MW||Level 2: 20 days approval, up to $50 plus $1/kW interconnection fee|
|All other systems||Level 3: detailed interconnection process, up to $100 plus $2/kW interconnection fee|
System size limit: 2 MW
Liability insurance: Not required
External disconnect switch: Required for Level 2 and Level 3 systems
Third Party Ownership
The status of third party ownership in Mississippi is unclear.
There are currently no statewide community solar policies in Mississippi. Utilities or developers may offer community solar programs.
State Incentive Programs
There are no state incentives programs in Mississippi for midscale solar.
Utility Incentive Programs
Prospective customers in the Tennessee Valley Authority (TVA) service territory may be eligible for TVA incentives. Systems <50 kW may qualify for TVA's Green Power Providers program, which buys 100% of system output for the first 10 years of operation at $0.02/kWh above the retail rate and an additional 10 years of output at the retail rate. Mid-sized projects (50 kW to 20 MW) may be eligible for TVA's Renewable Standard Offer program. The program buys mid-sized project output through 10-, 15-, or 20-year contracts at a rate that escalates 5% annually. In 2015, TVA began a pilot program titled the Solar Solutions Initiative that offers an additional $0.04/kWh for the first 10 years of solar projects. The program sets aside 4 MW of program-eligible capacity for projects between 50 and 200 kW.
The list below provides some resources for each type of policy or program. Please reference and contact relevant authorities and local utilities for the most up-to-date and accurate information on state and utility policies and incentive programs.
Net Metering and Interconnection
- Mississippi Public Service Commission: Net Metering Rule
- Mississippi Public Service Commission: Distributed Generator Interconnection Rule