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Interconnection queue status: third quarter 2026

Published October 9, 2026 · Data as of September 30, 2026 · Interconnection Planning

This quarterly update reports the number and capacity of active interconnection requests in the Midland Grid queue, and the average time from request to executed interconnection agreement for agreements signed in the past twelve months. Standalone battery storage is reported separately because it is now the largest resource type in the queue.

626active requests

127.0 GWrequested capacity in the queue

41.6 GWstandalone storage, 33% of queued capacity

34 monthsaverage wait to agreement, standalone storage

Queue by resource type

Table 1. Active requests and average wait to agreement, by resource type
Resource type	Requests	GW	Share	Signed, 12 mo.	Avg. wait, mo.
Battery storage (standalone)	214	41.6	33%	23	34
Solar	176	30.2	24%	17	36
Solar plus storage	138	27.9	22%	14	37
Wind	61	14.8	12%	5	39
Natural gas	22	9.4	7%	4	28
Other	15	3.1	2%	2	30
All resource types	626	127.0	100%	65	35

Requests: active requests, meaning valid requests without an executed interconnection agreement. GW: requested capacity. Signed, 12 mo.: agreements executed in the past twelve months. Average wait covers the 65 agreements executed between October 1, 2025 and September 30, 2026, measured from the date the request was deemed valid. “Other” includes hydro, geothermal and merchant transmission.

Standalone storage

Standalone storage requests in the queue rose to 214, with 41.6 GW of requested capacity, from 178 requests and 33.0 GW a year earlier. The 23 storage agreements executed in the past twelve months, covering 4.4 GW, waited an average of 34 months from request to agreement. Two years ago the comparable figure was 27 months.

Table 2. Standalone storage in the queue
As of	Requests	GW	Signed, 12 mo.	Withdrawn, 12 mo.	Avg. wait, mo.
Sep 30, 2024	141	24.3	15	22	27
Sep 30, 2025	178	33.0	19	27	31
Sep 30, 2026	214	41.6	23	31	34

Table 3. Standalone storage requests by study phase, September 30, 2026
Study phase	Requests	GW
Phase 1 cluster study	96	18.9
Phase 2 cluster study	61	12.2
Facilities study	38	7.1
Agreement in negotiation	19	3.4
Total	214	41.6

Withdrawn, 12 mo.: storage requests withdrawn in the prior twelve months. Capacity is requested injection capacity in GW. Midland Grid does not collect storage energy capacity (MWh) through the interconnection process.

Study process during the quarter

Phase 2 results for the 2025 cluster were issued in August. Withdrawals after Phase 1 triggered restudies for two subgroups of that cluster, and Midland Grid completed both restudies within the quarter. The 2026 cluster request window closed on June 30, 2026 with 58 new standalone storage requests totaling 11.4 GW. Phase 1 studies for that cluster are under way.

Network upgrades identified in studies remain the main driver of wait times. Requests at substations in the western part of the footprint, where solar and storage requests are concentrated, carry the highest upgrade cost allocations and the longest study times.

Definitions

Average wait to agreement: Mean time from the date a request was deemed valid to the date its interconnection agreement was executed, for agreements executed in the twelve months to the reporting date. It does not include time after the agreement for construction, network upgrades or energization.
Active request: A valid request that has not withdrawn and has not executed an interconnection agreement.
Requested capacity: The maximum injection capacity in the request, in GW. Solar plus storage requests are counted once at their combined injection limit.

Questions about this report: Interconnection Planning, interconnection@midlandgrid.example. Request-level queue data is available to registered stakeholders through the stakeholder portal.