Tunnel

72 Roosevelt Drive, Preston, CT 6365

Plant Summary Information

Tunnel is ranked #7 out of 13 hydroelectric power plants in Connecticut in terms of total annual net electricity generation.

Tunnel is comprised of 3 generators and generated 3.2 GWh during the 3-month period between September 2023 to December 2023.

Plant Name	Tunnel
Utility Name	FirstLight Power Resources Services LLC
Location	Southeastern Connecticut Planning Region, CT
Initial Operation Date	January 1919
Last Update	Dec 2023
Annual Generation	11.9 GWh
Annual Consumption	46.2 k MMBtu
Ranked #5,646 out of 11,852 Power Plants Nationwide
Ranked #911 out of 1,371 Water Power Plants Nationwide
Ranked #60 out of 156 Connecticut Power Plants
Ranked #7 out of 13 Connecticut Water Power Plants
Fuel Types	Water : 98.2% Jet Fuel : 1.8%

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Summary Information
Plant Name	Tunnel (557)
Plant Address	72 Roosevelt Drive, Preston, CT 6365
Utility	FirstLight Power Resources Services LLC (54895)
Latitude, Longitude	41.55543, -72.04183
Generation Dates on File	Jan 2001 to Dec 2023
Initial Operation Date	January 1919
Annual Generation	11.9 GWh
Fuel Types	Water : 98.2% Jet Fuel : 1.8%

Federal Energy Regulatory Commission (FERC) Information
FERC Cogeneration Status	No
FERC Small Power Producer Status	No
FERC Exempt Wholesale Generator Status	Yes
FERC Exempt Wholesale Generator Docket Number	00-94-000

Regulatory Information
Regulatory Status	Non-Regulated
NERC Region	NPCC
Balancing Authority	ISO New England Inc. (ISNE)
NAICS Code	Utilities (22)
Sector	IPP Non-CHP (2)
Water Source	Quinebaug
Ash Impoundment	No
Transmission / Distribution Owner	Connecticut Light & Power Co (4176) CT
Grid Voltage	23.00 kV
Energy Storage	No

* Data obtained from the 2023 EIA 860 Report

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Wholly Owned by Other Entity
Nameplate Capacity	1 MW
Nameplate Power Factor	0.85
Summer Capacity	0.8 MW
Winter Capacity	1.1 MW
Minimum Load	0.3 MW

Uprate/Derate Completed	No
Status	Operating
First Operation Date	January 1919
Combined Heat & Power	No
Sector Name	IPP Non-CHP (2)
Energy Source	Water
Time From Cold Shutdown To Full Load	1H
Multiple Fuels	No

Technology	Conventional Hydroelectric
Prime Mover	Hydroelectric Turbine
Ownership	Wholly Owned by Other Entity
Nameplate Capacity	1 MW
Nameplate Power Factor	0.85
Summer Capacity	0.8 MW
Winter Capacity	1.1 MW
Minimum Load	0.3 MW

Uprate/Derate Completed	No
Status	Operating
First Operation Date	January 1949
Combined Heat & Power	No
Sector Name	IPP Non-CHP (2)
Energy Source	Water
Time From Cold Shutdown To Full Load	1H
Multiple Fuels	No

Synchronized To Transmission Grid	Yes
First Operation Date	January 1969
Combined Heat & Power	No
Sector Name	IPP Non-CHP (2)
Energy Source	Jet Fuel
Time From Cold Shutdown To Full Load	1H
Multiple Fuels	No
Cofire Fuels	No
Switch Between Oil And Natural Gas	No

Owner Name	Address	Generator	Ownership
FirstLight Hydro Generating Company	143 West Street Ext. Suite E, New Milford, CT 6776	Generator 1	100.00%
FirstLight Hydro Generating Company	143 West Street Ext. Suite E, New Milford, CT 6776	Generator 10	100.00%
FirstLight Hydro Generating Company	143 West Street Ext. Suite E, New Milford, CT 6776	Generator 2	100.00%

Power plants with a similar annual net generation from Water.

Rank	Plant Name	Plant Location	Annual Generation
#901	Gorham	Gorham, NH	12.1 GWh
#902	Stillwater Hydro Station	Stillwater, ME	12.1 GWh
#903	Pine	Florence, WI	12.1 GWh
#904	Oakdale Power Station	West Boylston, MA	12.0 GWh
#905	Nacoochee	Lakemont, GA	12.0 GWh
#906	Cushaw	Warm Springs, VA	12.0 GWh
#907	Allegan Dam	Allegan, MI	11.9 GWh
#908	Clement Dam Hydro LLC	Tilton, NH	11.9 GWh
#909	Spillway	Pineville, SC	11.8 GWh
#910	Wappinger Falls Hydroelectric	Wappinger Falls, NY	11.8 GWh
#912	Orono Hydro Station	Orono, ME	11.6 GWh
#913	Deer Creek PH	Nevada City, CA	11.6 GWh
#914	Stillwater Hydro Electric Project	Stillwater, NY	11.6 GWh
#915	Upper Dawson	La Grange, CA	11.5 GWh
#916	Spanish Fork	Spanish Fork, UT	11.5 GWh
#917	Silvis	Ketchikan, AK	11.5 GWh
#918	Dayton Hydro	Ottawa, IL	11.4 GWh
#919	Dixon Hydroelectric Dam	Dixon, IL	11.4 GWh
#920	Lundy	Lee Vining, CA	11.3 GWh
#921	Fourth Branch Hydroelectric Facility	Waterford, NY	11.3 GWh

Below are closest 20 power plants surrounding Tunnel.

Plant Name	Plant Location	Annual Generation	Distance
Backus Microgrid Project	Norwich, CT	937.0 MWh	2.8 mi
Clinton Solar	Griswold, CT	1.6 GWh	7.5 mi
CMEEC - Bozrah	Bozrah, CT	3.1 GWh	6.1 mi
CMEEC - Norwich Stott St Solar Hybrid	Norwich, CT	2.4 GWh	3.6 mi
CMEEC - Rogers Rd Solar	Norwich, CT	1.6 GWh	4.3 mi
Conn Mun Electric Energy Coop	Norwich, CT	1.3 GWh	4.3 mi
Covanta Southeastern Connecticut Company	Preston, CT	116.0 GWh	5.7 mi
Fort Hill 1, 2, 3 & 4	Uncasville, CT	701.0 MWh	6.6 mi
Foxwoods CoGen	Mashantucket, CT	10.8 GWh	7.1 mi
Fusion Solar Center LLC	Baltic, CT	38.1 GWh	4.7 mi
Jackson Solar (CT)	Griswold, CT	1.6 GWh	7.4 mi
Jewett City 1	Jewett City, CT	198.0 MWh	4.6 mi
LNG 1 & 2	Norwich, CT	573.0 MWh	4 mi
North Main Street	Norwich, CT	138.5 MWh	2.3 mi
Norwich WWTP	Norwich, CT	1.0 MWh	3 mi
Rand Whitney CHP Plant	Montville, CT	133.7 GWh	8.6 mi
Sherman Solar	Griswold, CT	1.6 GWh	7.5 mi
Taftville	Taftville, CT	4.7 GWh	1.2 mi
Tenth Street	Norwich, CT	3.5 GWh	1.2 mi
Wheelabrator Lisbon	Lisbon, CT	99.7 GWh	2 mi