How many battery storage projects are planned in Mississippi?

Developers have proposed 11 battery storage projects in Mississippi with 1.6 GW of capacity, according to the grid operators' interconnection queues. Most queue projects are never built.

What is the largest planned battery storage project in Mississippi?

TWINKLETOWN 230 KV in DeSoto County, Mississippi is the largest planned, at 250 MW. It is expected to come online in 2025.

Who is developing battery storage projects in Mississippi?

Interconnection queues list each project under a project company, not the developer behind it. Cleanview researches the developer of every project and has them on paid plans.

Planned battery storage projects in Mississippi

Developers have proposed 11 battery storage projects in Mississippi with 1.6 GW of capacity, in the grid operators' interconnection queues.

Planned11

See operating battery storage projects in Mississippi

Updated monthly. Last updated November 2026.

Under 50 MW50–249 MW250 MW and up

Updated monthly. Last updated November 2026.

More planned battery storage projects in Mississippi are expected online in 2028 than in any other year

2026’262027’272028’282029’292030’302031’312032’322033’33

Planned battery storage projects by the year they're expected online. Source: the grid operators' interconnection queues, compiled by Cleanview.

The 10 largest planned battery storage projects in Mississippi

Planned, by capacity

#	Battery storage project	County	Expected online	Capacity
1	TWINKLETOWN 230 KV	DeSoto County	2025	250 MW
2	Andes Substation	Madison County	2028	200 MW
3	GERALD ANDRUS SES SWYD - TINNIN ROAD 230.0kV	Washington County	2030	170 MW
4	Greer Energy Storage	Washington County	2027	150 MW
5	Purvis Bulk 161 - Hintonville 161 161.0kV	Perry County	2030	150 MW
6	TINNIN ROAD	Hinds County	2028	150 MW
7	Okolona Solar	Henderson County	2028	145 MW
8	J1347 TO Switchyard (115kV Entergy MS Switchyard)	Scott County	2030	100 MW
9	WEBB	Tallahatchie County	2027	100 MW
10	TWINKLETOWN	DeSoto County	2028	100 MW

Planned battery storage projects expected online soonest in Mississippi

In the next 18 months, soonest first

#	Battery storage project	County	Expected online	Capacity
1	WEBB	Tallahatchie County	2027	100 MW
2	Greer Energy Storage	Washington County	2027	150 MW
3	Wildwood Energy Storage	Tallahatchie County	2027	75 MW
4	TWINKLETOWN	DeSoto County	2028	100 MW

The developer behind each project is on paid plans. See plans

How Cleanview tracks battery storage projects

Operating battery storage projects come from the EIA's monthly survey of power plants. Planned projects come from the grid operators' interconnection queues. We research who is developing each one, since a queue lists a project company, not its owner.

Questions about battery storage projects in Mississippi

How many battery storage projects are planned in Mississippi?: Developers have proposed 11 battery storage projects in Mississippi with 1.6 GW of capacity, according to the grid operators' interconnection queues. Most queue projects are never built.
What is the largest planned battery storage project in Mississippi?: TWINKLETOWN 230 KV in DeSoto County, Mississippi is the largest planned, at 250 MW. It is expected to come online in 2025.
Who is developing battery storage projects in Mississippi?: Interconnection queues list each project under a project company, not the developer behind it. Cleanview researches the developer of every project and has them on paid plans.