Query
Shepaug
Type
Entity Briefing
Entity
Shepaug
Generated
2026-10-18T01:11:07.230Z

Briefing on Shepaug

Entity Briefing
Generated Oct 18, 2026·Dataset freshness not reported
37 MW
Capacity
Operating
Current status
1955
Operating since
1
Generators
35.7%
Capacity factor
117 GWh
Annual generation
Briefing/plantOperating

Shepaug is a 37 MW Conventional Hydroelectric asset in ISO New England, currently Operating.

Shepaug is reported in Connecticut since 1955 under FirstLight Power Resources Services LLC. Available operating and financial measures include 35.7% capacity factor and 117 GWh annual generation; $2294/kW reported CapEx.

Location
New Haven, Connecticut
Technology
Conventional Hydroelectric
Owner / parent
FirstLight Power Resources Services LLC
Operator
FirstLight Power Resources Services LLC
Grid
ISO New England
Plant ID
552

What stands out

1

Shepaug is a 37 MW Conventional Hydroelectric asset in Connecticut with status Operating.

2

Latest annual operating measures report 35.7% capacity factor and 117 GWh annual generation.

3

Available financial measures include $2294/kW CapEx.

4

Latest linked story: “Shepaug Dam in Southbury opens bald eagle observatory for 38th season; Record 32 spotted in one day” (News-Times, 2023-12-23).

Market and operating context

ISO / market
ISO New England
Balancing authority
ISO New England Inc.
NERC region
NPCC
State rank
#1 of 14
National rank
#366 of 1,462

Why it matters

For this asset in ISO New England, operating status, generation, ownership, and linked events are the primary facts for performance and asset-level diligence. The exact chart and source-linked records below let the reader test those facts before moving to a deeper report.