![]() Earlier this year (April 15–April 29, 2020) SoCalGas scheduled another temporary Aliso Canyon closure, which disallowed injections and withdrawals as part of a low-inventory maintenance event. As part of its overall system, SoCalGas operates three other storage fields (Honor Rancho, La Goleta, and Playa del Rey), but these fields will be unaffected by this announcement. The Southern California Gas Company (SoCalGas)-the owner and operator of the Aliso Canyon natural gas storage field (Aliso Canyon)-announced on July 20, 2020, that it will restrict injections and withdrawals of natural gas from July 22 to August 6, 2020, as part of a high-inventory shut-in maintenance event. JAliso Canyon natural gas storage use suspended until early August Daily Southern California Gas Company storage inventories, Jan 2017 – May 2021 SoCalGas reported withdrawing natural gas from Aliso Canyon on 14 occasions during March 2021 in its Monthly Aliso Canyon Withdrawal Report on April 5, 2021. SoCalGas’s overall natural gas inventories were about 63.6 Bcf or about 75% full on May 11, the highest stocks during this part of the injection cycle since at least 2017 and almost 6 Bcf more than one year ago. Aliso Canyon, located in Los Angeles, California, has a current allowable working natural gas capacity of 34 billion cubic feet (Bcf). The Southern California Gas Company (SoCalGas) announced on May 7, 2021, that it would temporarily halt natural gas storage injection and withdrawal activity at the Aliso Canyon Natural Gas Storage Facility (Aliso Canyon) from May 9 to May 24 to complete field testing as part of its Storage Integrity Management Plan. Southern California Gas Company temporarily halts operations at the Aliso Canyon Natural Gas Storage Facility for planned maintenance See EIA's Southern California Daily Energy Report for market updates. Several factors that are contributing to higher year-over-year working natural gas stocks in Southern California include higher renewable energy generation in CAISO, reduced cumulative curtailments of renewable generation in CAISO following several years of increases, higher working gas stocks at the start of summer compared with a year ago, and increased deliveries of natural gas into California from interstate natural gas pipelines. In addition, the daily natural gas spot price at the SoCal Citygate this summer (April 1–August 10) is up 150% over last summer and has averaged about $4.62 per million British thermal units. Thermal (mostly natural gas) generation in the California Independent System Operator (CAISO) market has increased 42% so far this summer, according to data reported on Form EIA-930, Hourly and Daily Balancing Authority Operations Report. Average daily natural gas demand on the SoCalGas system, sometimes referred to as sendout, has averaged about 2.3 billion cubic feet per day (Bcf/d) since April 1, up 10% from sendout a year ago. ![]() Natural gas stocks in California are robust despite higher natural gas loads and prices this summer. Current underground natural stocks at the SoCalGas Aliso Canyon Storage Facility are 33.5 Bcf, nearly peaking at the current maximum capacity of 34 Bcf. ![]() SoCalGas inventories are up 34% since April 1, the start of summer. ![]() Note: The five-year range includes the period from January 1, 2016, through December 31, 2020. Energy Information Administration, based on data from Sempra Energy’s ENVOY electronic bulletin board system, as of August 9, 2021
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