How big is Nantucket Hybrid?

Nantucket Hybrid has a reported capacity of 22.4 MW. Source: EIA Form 860M.

What kind of plant is Nantucket Hybrid?

Nantucket Hybrid is a Petroleum Liquids, Batteries facility in Nantucket County, MA, participating in the ISO-NE market.

Where is Nantucket Hybrid located?

Nantucket Hybrid is in Nantucket County, MA, inside the ISO-NE balancing area.

Who operates Nantucket Hybrid?

Nantucket Hybrid is operated by Nantucket Electric Co according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.

How much electricity does Nantucket Hybrid generate?

Nantucket Hybrid reported -26 MWh over the twelve months to 2024-12. Figures are net generation as filed to EIA-923.

How does Nantucket Hybrid compare to other plants?

By capacity, Nantucket Hybrid ranks #201 of 705 operating plants of the same technology nationally. It ranks #7 of 16 in MA.

Ask the Grid

/

Nantucket Hybrid

New England Power Company - Nantucket County - ISONE

Nantucket Hybrid is a 22.4 MW operating hybrid power plant in Nantucket County, Massachusetts, combining petroleum-liquid generation with a 6 MW/48 MWh Tesla lithium-ion battery energy storage system at National Grid's Bunker Road substation and an on-island backup diesel generator. The facility provides contingency support for Nantucket's undersea transmission supply during peak demand and N-1 cable outages, deferring the need for a third submarine cable.

Website Open in grid

Loading map…

Nantucket Hybrid

ISO-NE · Asset profile

Ask about Nantucket Hybrid

Answers use this researched asset profile with live ISO-NE data. Ask about ownership, equipment, project history, or current grid context.

Try

Connect your own data

Live ISO-NE public data · answers can be wrong, verify against source data or the ISO.

Nantucket Hybrid — 22 MW oil plant, Nantucket County, MA · Ask the Grid

Overview

Nameplate capacity: 22.4 MW
Canonical EIA plant baseline.
Registry anchor: Plant 1615
plant-1615

Structured profile

Technology: Petroleum Liquids, Batteries
Operator: Nantucket Electric Company

Related assets

Similar plants ranked by technology, capacity, and distance.

Branford

Petroleum · 21.8 MW

New Haven County

Same typeComparable scale142 mi away

Compare with this plant

Schiller

Petroleum · 21.2 MW

Rockingham County

Same typeComparable scale133 mi away

Compare with this plant

Units and generators

Operating generator records and technology attributes reported through EIA-860.

Generator	Capacity	Technology	Operation	Status
18	15.4 MW 13.5 MW summer	Petroleum Liquids Disillate Fuel Oil · GT	Aug 2019	Operating
19	1 MW 1 MW summer	Petroleum Liquids Disillate Fuel Oil · IC	Aug 2019	Operating
20	6 MW 6 MW summer	Batteries Electricity used for energy storage · BA	Jul 2019	Operating

Performance

Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.

Peer context

Technology capacity: 16.4 MW
National rank: #201
MA rank: #7

Monthly generation

Download CSV

Latest 12 months

-26 MWh

Reported net generation

Latest report

Dec 2024

EIA-923 monthly filing

2024 capacity factor

—

Using current reported nameplate capacity

Grid and market context

Deterministic links to ERCOT market resources, price records, outage disclosures, queue records, and nearby infrastructure. Candidate joins remain labeled until corroborated.

Nearby substations

HIFLD infrastructure inventory

UNKNOWN133720

IN SERVICE · 115 kV

47.8 km

UNKNOWN133721

Commercial, land, and environmental record

Source-backed project transactions, agreements, land records, permits, and environmental disclosures. Portfolio and adjacent-project facts remain explicitly scoped.

Transactions and agreements

Planning Phase

Date not disclosed

National Grid developed an integrated plan, IslandReady, to upgrade Nantucket's electricity infrastructure, comprising the Bunker Road battery and backup generation system

National Grid

3blmedia.com

Construction Completion

Oct 2019

IslandReady records confirm that the new diesel generator replacing two aging generators and the new Bunker Road battery storage system were completed in Fall 2019

National Grid · State Electric

islandreadynantucket.com

Public Announcement

Oct 8, 2019

National Grid announced the 6 MW/48 MWh Tesla BESS, the new approximately 15 MW generator, and the associated power-control facilities; the broader IslandReady project cost was approximately $81 million

National Grid

3blmedia.com

Related parties and identifiers

Parties, market resources, and identifiers tied to this asset, with owner, operator, developer, EPC, compliance provider, and interconnecting entity roles kept separate.

Relationship graph

Drag organizations to explore the network. Select a node to pin its details and available page link.

AssetOwner / operatorEquipmentContractor

Timeline and sources

Project milestones and public references behind the asset profile.

Project timeline

Jul 2019
Jul 2019
Generator enters operationEIA-860
EIA-860 lists generator 20 with this operating date.
Aug 2019
Aug 2019
Generators enter operation

Nantucket Hybrid

Ask about Nantucket Hybrid

Nantucket Hybrid

Ask about Nantucket Hybrid

Overview

Structured profile

Related assets

Branford

Schiller

Units and generators

Performance

Peer context

Monthly generation

Grid and market context

Nearby substations

Commercial, land, and environmental record

Transactions and agreements

Related parties and identifiers

Relationship graph

Timeline and sources

Project timeline

Torrington

Franklin Drive

White Lake

Shrewsbury

Parties and identifiers

Reporting portfolio

Sources

Common questions about Nantucket Hybrid

How big is Nantucket Hybrid?

What kind of plant is Nantucket Hybrid?

Where is Nantucket Hybrid located?

Who operates Nantucket Hybrid?

How much electricity does Nantucket Hybrid generate?

How does Nantucket Hybrid compare to other plants?