Davis Besse 1

Operable

Details

Reactor Type	Pressurised Water Reactor (or PWR)
Model	B&W; (R-loop)
Owner	Cleveland Electric Illuminating Co.
Operator	First Energy Nuclear Operating Co.

Timeline

Construction Start	Tuesday, 1 September 1970
First Criticality	Friday, 12 August 1977
First Grid Connection	Sunday, 28 August 1977
Commercial Operation	Monday, 31 July 1978

Specifications

Capacity Net	894 MWe
Capacity Gross	925 MWe
Thermal Capacity	2817 MWt
Design Net Capacity	906 MWe

Operational History

Electricity Supplied (GWh)

Energy Availability Factor (%)

Total Electricity Supplied (GWh)

Reactor History

Year	Reference Unit Power (MWe)	Annual Time Online (Hours)	Electricity Supplied (GWh)	Operation Factor (%)	Energy Availability Annual (%)	Energy Availability Cumulative (%)	Load Factor Annual (%)	Load Factor Cumulative (%)
1977	906	1452	709.40	-	-	-	-	-
1978	906	4263	2614.50	54.70	39.30	39.30	39.30	39.30
1979	906	4139	3129.10	47.20	39.40	39.40	39.40	39.40
1980	892	3171	2093.60	36.10	35.00	37.60	26.70	34.20
1981	888	5902	4363.40	67.40	67.40	46.20	56.10	40.50
1982	874	4508	3218.10	51.50	51.50	47.40	42.00	40.90
1983	874	6389	4883.30	72.90	72.30	51.90	63.80	45.00
1984	874	5486	4291.56	62.40	62.50	53.50	55.90	46.70
1985	860	2729	1942.92	31.20	30.90	50.60	25.70	43.90
1986	860	116	3.49	1.30	1.30	44.80	0.00	38.80
1987	860	7308	5063.98	83.40	82.80	48.80	67.20	41.80
1988	860	1891	1164.40	21.50	20.40	46.10	15.40	39.30
1989	860	8506	7322.11	97.10	97.10	50.50	96.00	44.20
1990	874	4867	4161.47	55.60	55.60	51.00	54.40	45.00
1991	874	6962	5843.86	79.50	78.60	53.00	76.30	47.40
1992	877	8742	7650.49	99.50	99.50	56.20	99.30	51.00
1993	868	7246	6083.40	82.70	82.70	58.00	79.70	52.80
1994	868	7667	6385.00	87.50	86.90	59.70	84.00	54.70
1995	871	8760	7670.57	100.00	100.00	62.00	100.80	57.40
1996	873	7452	6456.29	84.80	84.80	63.20	84.30	58.80
1997	873	8184	7183.36	93.40	93.40	64.80	93.90	60.60
1998	873	7181	6130.68	82.00	82.00	65.60	80.20	61.60
1999	873	8311	7369.99	94.90	94.90	67.00	96.40	63.20
2000	882	7633	6770.53	86.90	87.00	67.90	87.90	64.30
2001	882	8738	7690.85	99.80	99.80	69.30	99.50	65.80
2002	882	1081	929.02	12.30	12.40	66.90	12.00	63.60
2003	882	0	0.00	0.00	0.00	64.30	0.00	61.10
2004	882	6628	5778.43	75.50	75.60	64.70	74.60	61.60
2005	873	8125	7177.43	92.80	92.80	65.70	93.80	62.80
2006	891	7265	6375.42	82.90	82.90	66.30	81.70	63.40
2007	879	8712	7705.80	99.40	99.40	67.50	100.10	64.70
2008	894	7621	6829.44	86.80	86.60	68.10	88.00	65.50
2009	879	8361	7609.61	95.40	95.40	69.00	98.80	66.50
2010	894	5851	5188.16	66.80	67.40	68.90	66.20	66.50
2011	894	7012	6339.24	80.00	80.10	69.20	81.00	67.00
2012	894	7868	7101.70	89.60	89.60	69.90	90.40	67.60
2013	894	8451	7679.22	96.50	96.50	70.60	98.00	68.50
2014	894	6453	5972.42	73.70	73.70	70.70	76.30	68.70
2015	894	8684	7893.92	99.10	99.10	71.50	100.80	69.60
2016	894	7321	6394.93	83.30	83.40	71.80	81.40	69.90
2017	894	8760	7876.43	100.00	100.00	72.50	100.60	70.70
2018	894	8169	7380.27	93.20	93.20	73.00	94.20	71.30
2019	894	8632	7839.46	98.50	98.60	73.70	100.10	72.00
2020	894	8130	7228.06	92.60	92.60	74.10	92.00	72.50
2021	894	8682	7827.04	99.10	99.10	74.70	99.90	73.10
2022	894	7310	6486.64	83.40	83.50	74.90	82.80	73.40
2023	894	8760	7985.73	100.00	100.00	75.50	102.00	74.00