Connection Impact Assessment Form
Connection Impact Assessment Application
The “Connection Impact Assessment” form is a study prepared by the distributor to assess the impact of a proposed Distributed Energy Resource facility connection on its system. This assessment will specify the technical requirements for the connection.
The information requirements at this stage are more substantial than the information included in the preliminary consultation phase.
Depending on the size of the project and its location within the distribution system, an additional Connection Impact Assessment by a host distributor and/or transmitter (such as Hydro One Networks Inc.), and/or a System Impact Assessment by the Independent Electricity System Operator (IESO) may also be necessary to assess upstream system impacts.
Wellington North Power Inc. does not offer flexible hosting capacity agreements (i.e. arrangements to allow an electricity distributor to connect to distributed energy resources (DERs) that may, in aggregate, exceed feeder and/or substation technical limits on the distributor’s distribution system).
The table below outlines an anticipated number of additional studies required based on DER classification:
| DER Classification | Rating | Sample List of Studies |
|---|---|---|
| Micro | ≤ 10 kW | None |
| Small | a) ≤ 500 kW connected on distribution system voltage < 15 kV b) ≤ 1 MW connected on distribution system voltage ≥ 15 kV | 1- Distributor (or Embedded Distributor) 2- Host Distributor (if applicable) |
| Mid-Sized | a) ≤10 MW but > 500 kW connected on distribution system voltage < 15 kV b) > 1 MW but ≤ 10 MW connected on distribution system voltage ≥ 15 kV | 1- Distributor (or Embedded Distributor) 2- Host Distributor (if applicable) 3- Transmitter (if applicable) |
| Large | > 10 MW | 1- Distributor (or Embedded Distributor) 2- Host Distributor (if applicable) 3- Transmitter 4- IESO System Impact Assessment |
)The completion of a Connection Impact Assessment does not constitute approval of the protection philosophy and single line diagram (SLD) by the distributor. The protection philosophy and single-line diagram will be subject to distributor review after the Connection Impact Assessment has been issued.
The “Connection Impact Assessment – Screening Process” document below is a useful tool to confirm if the Connection Impact Assessment is complete:
Connection Impact Assessment – Screening Process document
The process and steps for connecting a Small-Embedded Generation facility are summarized in the document below:
Small-Embedded Generation Facility Connection Process document
The process and steps for connecting a Mid-Sized and Large-Sized-Embedded Generation facility are summarized in the document below:
Mid-Large Embedded Generation Facility Connection Process document
Responsibilities:
DER-applicant:
Complete and submit a “Request for Connection Impact Assessment (CIA) Application“ to the distributor using the form below:
Request for Connection Impact Assessment (CIA) Application
The distributor will send a “Connection Impact Assessment (CIA) Application”. (For reference, clicking the link below will display a copy of the “Connection Impact Assessment (CIA) Application”.)
Connection Impact Assessment (CIA) Application
Complete and submit a “Connection Impact Assessment (CIA) Application“ to the distributor.
Payment (in full) of the estimate must be made prior to the distributor commencing the studies. (Refer to Approximate Costs section for fees and charges)
Distributor:
Upon receiving a “Request for Connection Impact Assessment (CIA) Application“, the distributor will issue a “Connection Impact Assessment (CIA) Application“ to the DER-applicant.
Upon receiving the “Connection Impact Assessment (CIA) Application“ , the distributor will provide the DER-applicant with the technical requirements using the “Connection Impact Assessment” form for connection to the distributor’s electrical system.
The distributor will provide an estimate of the cost to facilitate the connection.
Note:
- Depending on the size of the project and its location within the distribution system, additional Connection Impact Assessments by a host distributor and/or transmitter, and/or a System Impact Assessment by the Independent Electricity System Operator may also be necessary to assess upstream system impacts.
- The distributor will reserve capacity on its own system for a minimum of 180 days pending a decision by the applicant on moving forward.
Questions:
Please call us 519-323-1710 or email generation@wellingtonnorthpower.com