Tiverton Power Plant
Natural gas power plant in Newport County, Rhode Island. 274.5 MW of nameplate capacity across 2 generators, operated by Tiverton Power LLC.
Also known as EIA plant 55048
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 274.5 MWNameplate
- Generators
- 2 operatingEIA-860M, August 2026
- Operating since
- March 2000First generator online
- Operator
- Tiverton Power LLCEIA operator ID 55510
- Grid
- ISO-NEBalancing authority ISNE
- Price nodes
- 1 ISONE nodeResource nodes with prices
- Location
- Newport County, RI41.6422, −71.1706
- EIA plant ID
- 55048EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Tiverton produces
Free · EIA-923Net generation, 2025
1.50 TWh
1,500,777 MWh, final
Capacity factor, 2025
Not reported
2024: 65.3%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
1.1–1.7
TWh a year. Low 2022, high 2024
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 366,653 | Not reported | 12 of 12 |
| 2001 | 1,774,917 | Not reported | 12 of 12 |
| 2002 | 1,691,574 | Not reported | 12 of 12 |
| 2003 | 1,657,190 | Not reported | 12 of 12 |
| 2004 | 1,831,435 | Not reported | 12 of 12 |
| 2005 | 1,791,756 | Not reported | 12 of 12 |
| 2006 | 873,747 | Not reported | 12 of 12 |
| 2007 | 1,211,042 | Not reported | 12 of 12 |
| 2008 | 1,459,906 | Not reported | 12 of 12 |
| 2009 | 1,529,102 | Not reported | 12 of 12 |
| 2010 | 1,099,210 | 46.0% | 12 of 12 |
| 2011 | 1,578,676 | 66.1% | 12 of 12 |
| 2012 | 1,610,946 | 67.3% | 12 of 12 |
| 2013 | 1,220,404 | Not reported | 12 of 12 |
| 2014 | 1,453,759 | 60.9% | 12 of 12 |
| 2015 | 1,354,120 | 56.7% | 12 of 12 |
| 2016 | 1,135,799 | Not reported | 12 of 12 |
| 2017 | 1,302,320 | 54.6% | 12 of 12 |
| 2018 | 1,560,078 | 65.4% | 12 of 12 |
| 2019 | 1,140,160 | 47.8% | 12 of 12 |
| 2020 | 1,589,737 | 66.4% | 12 of 12 |
| 2021 | 1,510,957 | Not reported | 12 of 12 |
| 2022 | 1,062,072 | 44.5% | 12 of 12 |
| 2023 | 1,653,199 | Not reported | 12 of 12 |
| 2024 | 1,663,114 | 65.3% | 12 of 12 |
| 2025 | 1,500,777 | Not reported | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free account · ISONEEmissions
Free · EPA CAMPDCO₂, 2025
619,368
US short tons. 2024: 704,140
SO₂, 2025
3
US short tons
NOx, 2025
55
US short tons
CO₂ per MWh, calculated
0.41 t
About 825 lb per MWh
1 of 1 EPA units reported CO₂ in 2025 (1), matched to EIA plant 55048 through the EPA–EIA crosswalk. The per-MWh rate is EPA CO₂ divided by EIA-923 net generation. The two reporting boundaries can differ.
Water use
Free · EIA-923 cooling, USGSWithdrawal, 2024
Not reported
million gallons as reported; not used, see note
Consumption, 2024
Not reported
million gallons
Source
Not reported
Dry cooling
Watershed stress
Very low/none · 0.137
USGS SUI, HUC12 Sakonnet River
0 of 12 cooling months report withdrawal. Dry cooling with no reported withdrawal; not tested. Consumption is below 5% of a large reported withdrawal, so the withdrawal is not used. Blank volumes are unreported, not zero.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| UNT1 | Natural Gas Fired Combined Cycle | 179.4 | March 2000 |
| UNT2 | Natural Gas Fired Combined Cycle | 95.1 | June 2000 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Tiverton Power LLC as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Generation potential vs reported
Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.
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Questions about Tiverton
How much power does Tiverton Power Plant produce?
Tiverton Power Plant reported 1,500,777 MWh (1.50 TWh) of net generation in 2025.
Where is Tiverton Power Plant?
Tiverton Power Plant is in Newport County, Rhode Island, at 41.6422, −71.1706. It is in the ISO New England Inc. balancing area (ISNE).
Who operates Tiverton Power Plant?
EIA-860M for August 2026 lists Tiverton Power LLC as the operator (EIA operator ID 55510). The operator is not always the owner.
When did Tiverton Power Plant start operating?
Its first generator began operating in March 2000, according to EIA-860M.
Does InfraMap have power prices for Tiverton Power Plant?
Yes. InfraMap has ISONE day-ahead and real-time prices at 1 price node linked to Tiverton Power Plant, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- EPA CAMPD annual emissions through the EPA–EIA crosswalk, 1995 to 2025
- ISONE day-ahead and real-time prices; node and hub assignments as of 2026-10-05
- EIA-923 cooling water 2024 and the USGS surface water supply and use index, Water years 2010-2020 (Oct 2009 to Sep 2020), mean of monthly values
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page