Electric Utility Industry -- Capability, Peak Load, and Capacity Margin statistics


		Capability at the time of-					Non-coincident			Capacity margin
							peak load
Year		Summer peak load (1,000 kW)		Winter peak load (1,000 kW)					Summer		Winter
	(1,000 kW)			(1,000 kW)

		Change from			Change from				Amount	Percent of	Amount	Percent of
	Amount	prior year		Amount	prior year		Summer	Winter	(1,000 kW)	capability	(1,000 kW)	capability

1970	326,900	26,600		339,050	27,600		274,650	248,550	52,250	16.0	90,500	26.7
1971	353,250	26,350		366,700	27,650		292,100	261,650	61,150	17.3	105,050	28.6
1972	381,700	28,450		394,050	27,350		319,150	290,950	62,550	16.4	103,100	26.2
1973	415,500	33,800		433,150	39,100		343,900	295,150	71,600	17.2	138,050	31.9
1974	444,400	28,900		467,400	34,250		349,250	302,500	95,150	21.4	164,900	35.3
1975	479,300	34,900		492,450	25,050		356,800	331,100	122,500	25.6	161,350	32.8
1976	498,750	19,450		511,000	18,550		370,900	349,850	127,850	25.6	161,150	31.5
1977	516,000	17,250		537,600	26,600		396,350	360,200	119,650	23.2	177,400	33.0
1978	545,700	29,700		561,550	23,950		408,050	383,100	137,650	25.2	178,450	31.8
1979 ²	544,506	(X)		554,525	(X)		398,424	368,876	146,082	26.8	185,649	33.5
1980	558,237	13,731		572,195	17,670		427,058	384,567	131,179	23.5	187,628	32.8
1981	572,219	13,982		586,569	14,374		429,349	397,800	142,870	25.0	188,769	32.2
1982	586,142	13,923		598,066	11,497		415,618	373,985	170,524	29.1	224,081	37.5
1983	596,449	10,307		612,453	14,387		447,526	410,779	148,923	25.0	201,674	32.9
1984	604,240	7,791		622,125	9,672		451,150	436,374	153,090	25.3	185,751	29.9
1985	621,597	17,357		636,475	14,350		460,503	423,660	161,094	25.9	212,815	33.4
1986	633,291	11,694		646,721	10,246		476,320	422,857	156,971	24.8	223,864	34.6
1987	648,118	14,827		662,977	16,256		496,185	448,277	151,933	23.4	214,700	32.4
1988	661,580	13,462		676,940	13,963		529,460	466,533	132,120	20.0	210,407	31.1
1989	673,316	11,736		685,249	8,309		523,432	496,378	149,884	22.3	188,871	27.6
1990	685,091	11,775		696,757	11,508		545,537	484,014	139,554	20.4	212,743	30.5
1991	690,915	5,824	__________	703,212	6,455	__________	551,320	485,435	139,595	20.2	217,777	31.0
1992	695,436	4,521	__________	707,752	4,540	__________	548,707	492,983	146,729	21.1	214,769	30.3
1993	694,250	1,186		711,957	4,205		575,356	521,733	118,894	17.1	190,224	26.7
1994	702,985	8,735		715,090	3,133		585,320	518,253	117,665	16.7	196,837	27.5
1995	714,222	11,237		727,679	12,589		620,249	544,684	93,973	13.2	182,995	25.1
1996	723,571	9,349		740,526	12,847		615,529	545,061	108,042	14.9	195,465	26.4
1997	729,079	5,508		743,774	3,248		631,355	560,228	97,724	13.4	183,546	24.7
1998	727,242	-1,837		742,391	-1,383		648,694	573,107	78,548	10.8	169,284	22.8

https://allcountries.org/uscensus/963_electric_utility_industry_capability_peak_load.html

These tables are based on figures supplied by the United States Census Bureau, U.S. Department of Commerce and are subject to revision by the Census Bureau.

Copyright � 2019 Photius Coutsoukis and Information Technology Associates, all rights reserved.

963. Electric Utility Industry -- Capability, Peak Load, and Capacity Margin