Delaware City 10 — Plant Summary
- EIA Plant ID
- 592
- Capacity
- 18.5 MW
- Primary Fuel
- Oil
- Technology
- Petroleum Liquids
- Status
- Standby
- Location
- New Castle, DE
- Operating Since
- 1968
- Generators
- 1
- Operator
- Calpine Mid-Atlantic Generation LLC
- Parent Company
- Constellation Energy
- Annual Generation
- 0 MWh
- Capacity Factor
- 0.0%
- Balancing Authority
- PJM Interconnection, LLC
- ISO/RTO
- PJM
- NERC Region
- RFC
Delaware City 10
StandbyDistillate Oil
Ranked #3 of 4 Distillate Oil plants in DE#167 of 827 nationally
18.5 MW Distillate Oil standby in New Castle, DE — PJM Interconnection, LLC
EIAWD
18.5 MW
Nameplate Capacity
1
Generators
unit
Petroleum Liquids
Technology
1968
Operating Since
Location
Coordinates
39.6004, -75.6268
County
New Castle, DE
Nearby Plants
- Delaware City PlantOther Gas324 MW · 0.9 km
- Red Lion Energy CenterNatural Gas24.9 MW · 1.3 km
- AstraZeneca Newark SolarSolar3.2 MW · 8.6 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Calpine Mid-Atlantic Generation LLC | Calpine Mid-Atlantic Generation | — |
| Owner(s) | Calpine Mid-Atlantic Generation LLC | Constellation Energy | — |
| Status | Standby | — | — |
Ownership Chain
About
Delaware City 10 is a 18.5 MW power plant located in New Castle County, Delaware. The plant began operating in 1968 and is owned by Constellation Energy, with Calpine Mid-Atlantic Generation LLC as the operator. The primary fuel source is distillate fuel oil (DFO), and the plant utilizes petroleum liquid technology. It consists of a single generator.
The plant operates within the PJM Interconnection, LLC balancing authority and the RFC NERC region. Delaware City 10 is ranked as the 3rd largest of 4 power plants in Delaware, and nationally it holds a rank of 209 out of 886 plants. Recent news coverage includes 10 articles, with a focus on industry news (7 articles), regulatory matters (2 articles), and hazard-related incidents (1 article).
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
RFC
Balancing Authority
PJM Interconnection, LLC
Grid Voltage
13.8 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Generation
0 MWh
Latest Month
0 MWh
Annual Generation
0.0%
Capacity Factor
Jan 2022 – Dec 2024
Financial Data
No financial data available for this plant.
Pricing & Market Data
HIGH confidenceMarket Position
ISO/RTO Market
PJM
LMP Node
50524
Pricing Hub
WESTERN HUB
Node Source
EIA-860 direct report
News & Articles (10)Beta
Deals·m and a
Constellation to Sell 4.4 GW of PJM Gas Power Assets to LS Power for $5B in Regulatory Divestiture
Competitive generation giant Constellation Energy has agreed to sell approximately 4.4 GW of natural gas–fired generation capacity in PJM Interconnection to LS Power Equity Advisors for $5 billion, marking the largest single tranche of divestitures required to resolve antitrust and market-power c...
Constellation Energy (seller)LS Power (buyer)
POWER Magazine·1 weeks ago
Deals·m and a
Constellation to sell 4.4GW of PJM assets to LS Power for $5B as part of Calpine acquisition
Constellation Energy Corporation will sell a portfolio of generation assets in PJM to LS Power for $5 billion, fulfilling DOJ requirements from its Calpine acquisition.
Constellation Energy Corporation (seller)LS Power (buyer)
Power Engineering·1 weeks ago
Industry
Proposed Data Center Projects
We know the most about Project Washington, so there is a lot here about that project. Scroll down for information on other data center developments that...
Project Washington (other)
Sierra Club·4 weeks ago
Regulatory
Delaware City Refinery ordered to monitor emissions after delayed reporting
This story is part of the WHYY News Climate Desk, bringing you news and solutions for our changing region. From the Poconos to the Jersey...
Delaware City Refinery (operator)
WHYY·3 months ago
Last updated 2026-03-21
View all 10 articles