# Hazle Spindle

PJM asset profile · https://askthegrid.com/assets/facilities/hazle-spindle

20 MW flywheel plant for PJM frequency regulation

Hazle Spindle is a 20 MW flywheel facility in Hazle Township, Pennsylvania. Its 200 Beacon Gen4 flywheels—100 kW/25 kWh each—provide PJM frequency regulation; Hazle Spindle LLC owns the project and Convergent Energy + Power operates it. The equipment rating totals 5 MWh, while EIA's June 2026 inventory reports 15 MWh.

## Profile

- **Published energy ratings:** The 200 flywheels at 25 kWh each total 5 MWh; EIA's June 2026 inventory reports 15 MWh.

## Metrics

- **Storage power:** 20 MW — Exact-project and June 2026 EIA records.
- **Equipment energy:** 5 MWh — Two hundred Beacon Gen4 flywheels at 25 kWh each.
- **EIA energy:** 15 MWh — June 2026 preliminary EIA inventory.

## Facts

- **EIA operator:** Convergent Energy and Power LP — June 2026 preliminary EIA inventory; status OP.
- **Location:** Hazle Township · Luzerne · PA
- **Technology:** Flywheel
- **Operating records:** 2013-09

## Related parties

- **Portfolio operator / current portfolio sponsor:** Convergent Energy + Power — Financing covers a portfolio that includes Hazle Spindle. ([source](https://convergentep.com/news/convergent-energy-power-acquires-40-mw-of-flywheel-projects))
- **original developer / flywheel manufacturer:** Beacon Power — Hazle Spindle 20 MW flywheel frequency-regulation plant ([source](https://www.energy.gov/oe/articles/arra-sgdp-hazle-spindle-20-mw-flywheel-frequency-regulation-plant-formerly-beacon-power))

## Sources

- [June 2026 EIA-860M generator inventory](https://www.eia.gov/electricity/data/eia860m/xls/june_generator2026.xlsx) — U.S. Energy Information Administration · authoritative — Current generator capacity, technology, operating status, operator, and service-date records.
- [Hazle Spindle 20 MW flywheel frequency-regulation plant](https://www.energy.gov/oe/articles/arra-sgdp-hazle-spindle-20-mw-flywheel-frequency-regulation-plant-formerly-beacon-power) — U.S. Department of Energy · authoritative — Hazle is a 20 MW/5 MWh plant with 200 Beacon Gen4 flywheels.
- [Convergent acquisition of Stephentown and Hazle flywheel projects](https://convergentep.com/news/convergent-energy-power-acquires-40-mw-of-flywheel-projects) — Convergent Energy and Power · authoritative — Convergent operates the acquired asset.

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Canonical page: https://askthegrid.com/assets/facilities/hazle-spindle
Website: [Hazle Spindle, LLC](https://www.convergentep.com/)

Source: Ask the Grid — https://askthegrid.com/