Peach Bottom nuclear power plant 1
Gross capacity
42MW
Peach Bottom nuclear power plant 1 is a high-temperature gas reactor unit at Peach Bottom nuclear power plant in United States rated at 42 MW gross. It is retired. Commercial operation began 1 Jun 1967.
Specification
| Reactor type | High-temperature gas reactor (HTGR) |
|---|---|
| Model | not disclosed |
| Size | Small300 MWe or less |
| Coolant | Helium |
| Moderator | Graphite |
| Gross capacity | 42MW |
| Net capacity (reference) | 40MW |
| Net capacity (design) | 40MW |
| Thermal output | 115MWt |
| NSSS vendor | not on record |
| Typical enrichment | 8–20% U-235, frequently HALEU |
Ownership & location
| Site | Peach Bottom nuclear power plant |
|---|---|
| Unit | 1 |
| Country | United States |
| Owner | Exelon Generation Co LLC100% |
| Operator | Exelon Generation |
| Coordinates | 39.7589, -76.2687 |
Fuel chain for this unit
Fuel form
TRISO-coated particle fuel in pebbles or compacts
Enrichment
8–20% U-235, frequently HALEU HALEU dependency
Who makes this assembly
- BWX Technologies TRISO particle fuel
- X-energy TRISO particle fuel, HALEU enrichment
Upstream
Enriched fuel means this unit sits downstream of five conversion plants and four enrichment operators holding 88% of world capacity between the top three.
This design needs HALEU, enrichment above 5%. Western production is currently measured in hundreds of kilograms a year.
Fabricator capability is recorded against reactor type and model line, not against named units,
utilities do not publish fuel contracts. See the fuel chain.
Timeline
- 1 Feb 1962Construction start
- 3 Mar 1966First criticality
- 27 Jan 1967Grid connection
- 1 Jun 1967Commercial operation
- 1 Nov 1974Permanent shutdown
Other units at Peach Bottom nuclear power plant
| Unit | Status | Gross MW |
|---|---|---|
| Peach Bottom nuclear power plant 2 | 1,412 | |
| Peach Bottom nuclear power plant 3 | 1,412 |
Sources
- Global Nuclear Power Tracker, Global Energy Monitor, August 2026 release , CC BY 4.0 · retrieved 2026-09-06 · this unit last researched by GEM on 2024-05-29
- GEM.wiki entry (further reading) , CC BY-SA 4.0, linked, not quoted
How these sources are used, including the corrections applied on top of them and what is deliberately left blank · download the underlying data