Cook Inlet Gas Watch
A daily numeric record of Southcentral Alaska's gas position. Measured storage, modeled demand, and the supply nobody publishes. Read November 4th, 92 days on record.
What you are looking at
The reserve
Southcentral Alaska keeps gas in an underground field near Kenai, run by CINGSA. Utilities fill it in summer and draw on it in winter. The level is published once a day and never archived, so this page reads it and keeps the history.
The demand
How much gas the region burns is not published at all. We estimate it from the Anchorage forecast. The model and its error history are included in the raw data linked below.
The gap
Subtract what came out of storage from what the region likely burned, and what is left came from somewhere nobody reports daily. That residual is the number no other source publishes.
This page will never tell you whether the lights stay on
Measured storage, modeled demand, and missing data offer no verdict on reliability. Equipment failures can disrupt supply despite reassuring figures. Supply side deliverability is not public, so these numbers can't predict whether the lights stay on.
Day by day
CINGSA keeps no archive, so this series exists only because it is collected daily and committed. It begins August 5th. Storage is measured. The peak is model output, shown on its own scale because the two quantities are different in kind and sharing one axis would imply a relationship the data does not claim.
What is not measured by anyone
Subtract measured storage withdrawals from modeled demand to estimate non CINGSA supply. On November 3rd, the result was 189.4 MMcf per day against modeled demand of 177, or 107.0 percent. Storage filling explains the excess over demand. This includes field production and Hilcorp storage movement, which public data can't separate.
Current Power Costs
The average retail price of electricity in Alaska, measured by the US Energy Information Administration and published monthly. It is one number for the whole state, so it shows which way prices are moving and not what any one utility charges.
EIA's latest household reading is August 2026. The chart shows monthly prices since July 2016. Drag a finger along it to inspect a month.Point along it or use Tab and arrow keys to inspect a month. These are observed prices only; the data doesn't explain why they changed.
What each utility charged in 2025
These 10 utilities reported annual household prices and the boroughs they serve. Each price divides annual revenue by electricity sold, giving an average billed price, not a tariff. Your own utility bill is the authority on your rate.
| Utility and the boroughs it serves | Households | Cents per kilowatthour |
|---|---|---|
| Chugach Electric Assn Inc Anchorage, Kenai Peninsula | 97,742 | 22.97 |
| Matanuska Electric Assn Inc Anchorage, Matanuska Susitna | 65,371 | 24.54 |
| Golden Valley Elec Assn Inc Denali, Fairbanks North Star, Southeast Fairbanks, Yukon Koyukuk | 40,931 | 31.47 |
| Homer Electric Assn Inc Kenai Peninsula | 30,143 | 31.51 |
| Alaska Electric Light & Power Co. Juneau | 15,516 | 13.73 |
| Alaska Village Elec Coop, Inc Bethel, Dillingham, Kodiak Island, Kusilvak, Nome, Northwest Arctic, Yakutat, Yukon Koyukuk | 7,853 | 65.93 |
| Ketchikan Public Utilities Ketchikan Gateway | 6,608 | 13.88 |
| Alaska Power and Telephone Co Haines, Prince of Wales Ketchikan, Skagway Hoonah Angoon, Yukon Koyukuk | 5,798 | 41.78 |
| Kodiak Electric Assn Inc Kodiak Island | 4,676 | 19.47 |
| Kotzebue Electric Assn Inc Northwest Arctic | 1,217 | 52.23 |
A household paid 13.73 cents on Alaska Electric Light & Power Co. and 65.93 cents on Alaska Village Elec Coop, Inc. That spread is the reason the single state figure above answers almost nobody, and it is why this page shows both.
The decisions behind Alaska's grid are tracked on the Alaska AI Docket.
How to cite it
The whole series is one JSON document at /gas-watch.json, licensed CC BY 4.0 (license text). It carries the schema version, the model block with its full history, and one object per day with the provenance of every external fetch behind it. Storage is measured, demand is modeled, and each record says which is which. Version 1.1. The related tracked decision is Enstar's Cook Inlet gas storage plan.