Primary Energy Consumption by Energy Source

Sources:
Washington State University Extension Energy Program
Washington State Department of Community, Trade and Economic Development Energy Program

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PRIMARY ENERGY CONSUMPTION BY ENERGY SOURCE¹ Billions of BTUs
Calendar Year	Total	Coal	Natural Gas	Petroleum	Hydro- electricity	Nuclear Electricity	Biomass	Other Renew²
1988	1,328,777	99,099	150,595	654,762	233,309	63,616	127,395	-
1989	1,355,150	96,650	167,988	673,834	243,288	64,745	108,226	418
1990	1,380,631	85,575	167,617	675,297	297,501	60,762	93,429	449
1991	1,364,907	89,085	179,395	673,781	303,942	44,346	73,889	468
1992	1,413,681	106,087	180,769	738,971	232,378	59,605	95,374	497
1993	1,412,175	97,804	229,616	683,828	229,001	74,946	96,463	518
1994	1,467,403	106,884	263,176	707,072	222,995	70,444	96,294	537
1995	1,502,311	69,790	264,474	723,885	280,535	72,938	90,131	557
1996	1,582,100	90,901	283,909	723,069	335,270	58,691	89,664	596
1997	1,604,127	80,465	268,141	740,804	354,420	65,526	94,158	612
1998	1,533,323	103,476	303,308	694,672	271,515	72,556	87,123	672
1999	1,589,463	96,875	302,262	706,714	329,911	63,598	89,417	687
2000	1,583,939	106,240	297,569	726,674	273,508	89,744	89,553	650
2001	1,503,654	99,441	322,413	714,427	186,548	86,200	93,994	630
2002	1,479,089	100,832	238,157	685,789	266,098	94,457	88,894	4,861
2003	1,476,050	118,207	255,092	675,014	244,647	79,353	96,873	6,864

¹Totals differ from sector totals due to exports/imports of electricity and system/generation losses.
²This value includes solar thermal, solar PV, wind, and geothermal energy sources.

British Thermal Unit (BTU): The quantity of heat required to raise the temperature of one pound of water by one degree Fahrenheit.

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