Explainers

The study performed by a neighbouring transmission provider whose system is affected by an interconnection request made elsewhere.

3 min read

The rights, granted by some transmission providers, that permit a generator to be counted as capacity in the resource adequacy construct after passing a deliverability study.

3 min read

A single study covering all interconnection requests that entered the same window, replacing the request-by-request processing that FERC found produced repeated restudies.

4 min read

The date, fixed in the interconnection agreement, on which the generating facility is expected to begin commercial operation, and against which milestone obligations are measured.

3 min read

The lower of the two standard interconnection service levels, permitting a generator to inject energy on an as-available basis without a study demonstrating delivery to load.

3 min read

The final study stage, which engineers the interconnection facilities and network upgrades identified earlier and produces the cost estimates and schedule carried into the interconnection agreement.

3 min read

The ordered list of proposed generators and storage projects awaiting study for connection to the transmission system, and the procedural rules that govern position in it.

4 min read

The executed agreement among the interconnection customer, the transmission provider and, where applicable, the transmission owner, setting out construction obligations, cost responsibility, milestones and the terms of service.

4 min read

The higher of the two standard interconnection service levels, requiring a study showing the facility's output can be delivered to load, and generally a precondition for capacity recognition.

3 min read

The tariff rules that determine how the cost of a shared network upgrade is divided among the interconnection requests that made it necessary.

4 min read

Additions or modifications to the existing transmission system, at or beyond the point of interconnection, that are required to accommodate an interconnection request.

3 min read

Limited interconnection service allowing a project to operate, at a restricted level, before the network upgrades identified in its studies are complete.

3 min read

Documented legal control of the land on which a proposed project would be built, required to enter and remain in an interconnection queue.

3 min read

A process by which a new resource uses the unused portion of an existing interconnection customer's service at the same point of interconnection, without entering the general queue.

4 min read

The interconnection customer's tariff right to suspend construction work under an executed agreement for a limited period, subject to cost responsibility for the suspension.

3 min read

The engineering analysis that identifies what a proposed generator does to power flows, voltage, stability and short circuit duty, and what reinforcement is therefore required.

4 min read

The charge imposed on an interconnection customer that withdraws its request after a specified stage, introduced to deter speculative requests and fund the restudy burden they create.

3 min read

The FERC final rule reforming the pro forma interconnection procedures and agreement, adopting a first-ready, first-served cluster process with readiness requirements and study delay penalties.

5 min read

The standard procedures, filed in every open access transmission tariff, that govern how a generating facility larger than 20 MW requests and obtains interconnection.

3 min read

The filed tariff under which a transmission provider offers transmission and interconnection service on terms that do not favour its own generation.

3 min read