Application for Interconnection

Applicant’s Legal Entity Name:*

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Applicant’s Full Street Address (include state and zip):*

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Name of Contact:*

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Title of Contact:*

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Office and Mobile Numbers:*

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Email:*

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Name of Alternate Contact:

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Alternate Contact Mailing Address (include state and zip):

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Alternate Contact Office and Mobile Numbers:

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Alternate Contact Email:

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Proposed Date for Commercial Operation*

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Name of Project or existing Generation Facility:*

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Fuel Type (one or more):*

Fuel Type (one or more):Solar/PVWindNatural GasBESSOther:

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Please Indicate

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Maximum Output Associated with the Interconnection Request. If the request is an increase the capacity of an existing Generating Facility, show the amount of the increase.

Generator: Summer*

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Storage Capacity: Summer*

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Inverter Capacity: Summer *

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Generator: Winter*

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Storage Capacity: Winter*

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Inverter Capacity: Winter*

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Requested total capacity of Interconnection Service injecting to Grid *

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(This is the combined maximum of generation and storage simultaneous discharge)

Name, Title, Company, Address, Phone and E-mail of Authorized Interconnecting Contractor/Representative – if applicable:*

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Type of Interconnection Requested (mark all that apply):*

Type of Interconnection Requested (mark all that apply):Transmission StationStation Breaker Bay Additions(s)Additional Delivery Points(s)General Tie-Line(s)Other

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Other (please Specify)

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This Interconnection Request is for (check one):*

This Interconnection Request is for (check one):A proposed new Generating FacilityAn increase in the generating capacity or a Material Modification of an existing Generating Facility.

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The type of Interconnection service requested (check one): If you wish to have your Generation Facility studied for both types of Interconnection Service, check both boxes.*

The type of Interconnection service requested (check one): If you wish to have your Generation Facility studied for both types of Interconnection Service, check both boxes.Energy Resource Interconnection Service (Please provide planned Point(s) of Delivery (POD).Network Resource Interconnection Service

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Specific location of the proposed new or existing Generating Facility site, if known:*

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Proposed Point of Interconnection – include references to relevant stations and/or transmission lines by name:*

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Are you planning or required to use the EFSEC (WA State Energy Facility Site Evaluation Council) process?*

Are you planning or required to use the EFSEC (WA State Energy Facility Site Evaluation Council) process?YesNo

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Evidence of Site Control as specified in the LGIP (check one):*

Evidence of Site Control as specified in the LGIP (check one):Is attached to this Interconnection request.Will be provided at a later date in accordance with the LGIP. (Will be billed by Grant PUD payable no later than Nov. 15, 2026)

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Summary of Project will be uploaded to FTP Site

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Additional Information. Please check each box below for information that is supplied separate from this application form.*

Additional Information. Please check each box below for information that is supplied separate from this application form.Single-line diagram(s) showing the proposed interconnection clearly indicating the Transmission Provider facility involved in the interconnection, including any relaying and metering facilitiesDrawing(s) indicating physical arrangements of existing and proposed facilities.Geographic location of the proposed interconnection, including maps showing land ownership and zoning - if available. If connecting to an existing transmission line, indicate adjacent structure numbers.Geographic location of the proposed road access routes to POI, including maps showing land ownership and zoning - if available.Description of the proposed routing, approximate lengths and conductor size of transmission line additions or modifications, and dimensions and configurations of new structures. Proposed transmission path(s) and service arrangements between resources and associated loads.Description of the generating resources or loads to be served by the interconnection and the proposed transmission path(s) and service arrangements between resources and associated loads, where applicable. The description should include the following:a) Maximum power output or load requirements, including 10-year projections, by delivery points, of winter and summer peaks for loads served or generation supplied through the point of interconnection; andb) Size, type and ratings of large equipment; andc) Reliability and special operation requirements; impedance, frequency, voltage, real and reactive power and protective relaying characteristics of the interconnecting resource or load.Description and ratings of proposed transformers, winding connections, impedances, circuit breakers, switches, metering, associated communications relaying and other equipment to the extent this information is not included in either Attachment A or Attachment B.Appropriate revenue and telemetering equipment specifications. The data should include load control boundary metering, current and potential transformer ratios and register and contact initiator ratios with multipliers.Copies of relevant planning and operational studies, proposed construction schedule.Copies of relevant environmental impact assessments, permits, cultural reviews, reports, projections, or description of anticipated scope of the environmental or cultural review.Curves showing the active and reactive power capabilities on a single plot for the anticipated operating range of the generation facility and the storage facility, if applicable.Include Attachment A for Technical Information for Solar Generation Facilities.Include Attachment B or Technical Information for Generation Facilities other than SolarInclude Information specified in Attachment C for all Non-Synchronous Generators

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Completing this application does not qualify the Applicant for interconnection to Transmission Provider or for the receipt of transmission service from Transmission Provider.

Applicant’s Signature:*

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Print Name:*

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Title:*

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Date*

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