Where it is available, private homeowners, businesses, industrial complexes and power utilities use Alaska's natural gas, most of which comes from Cook Inlet.
Demand from those consumer sectors is expected to increase by varying amounts over the next 20 years, according to the study conducted by the Department of Natural Resources. (See related story, page A-1.)
Here is a quick look at how that demand is expected to change:
By 2020, residential gas use in Alaska will have increased by 7.9 billion cubic feet from the 2000 baseline of 17.5 billion cubic feet, while commercial use will have risen by 6.3 billion cubic feet from the baseline of 28.6 billion cubic feet.
Meanwhile, industrial use is expected to show a nearly flat growth line of just a half percent per year. Demand by industry will increase by nearly 7.95 billion cubic feet by 2020 from the 2000 total of 73.2 billion cubic feet, a figure that excludes LNG plant gas use. A separate category is set aside for gas use by electrical utilities.
By 2020, utility gas demand is expected to jump to 40.8 billion cubic feet, up by just over 5.1 billion cubic feet over the 2000 level.
During the last five years, 1995 through 1999, industrial users burned about two-thirds of the total gas taken from the Cook Inlet basin, while residential and commercial users accounted for the other third, the study said.
The amount of gas sold in the Cook Inlet region is about 200 billion cubic feet a year. Another 20 billion cubic feet is used in production facilities and is not actually available to the market.
In the whole state, roughly 233 billion cubic feet of gas are consumed each year. About 11 billion cubic feet come from beyond the Cook Inlet basin.
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