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The US power and natgas price turn negative in Texas, California and other states due to mild weather

U.S. spot electricity and natural gas prices in Texas, California and other states traded in the negative territory on Tuesday due to mild weather that kept both heating and cooling usage low. This allowed for more energy demand from 'hydro' and other renewable sources.

Negative gas prices can be a sign of too much gas or power being produced, forcing some companies to reduce their output or pay other firms to buy the gas or power. Gas prices in West Texas at the Waha hub are average cash prices. The econometric index remained negative for 47 consecutive days, a record. Pipeline constraints continue to trap the gas produced by oil in the Permian region, the country's largest oil-producing shale area.

Analysts have said for years that negative gas prices are a sign the Permian Region, which spans West Texas, and eastern New Mexico, requires more pipelines.

There will be more pipes later this year but not enough to deal with the current amount of gas coming from the ground.

Daily Waha prices averaged for the first time below zero in 2019. According to LSEG's pricing data, this happened 17 times between 2019 and 2020, six times each in 2023, once in 2024, 49 times each in 2024, and 39 times during 2025. It has also happened 56 times since the beginning of this year.

Waha prices are currently averaging a negative $1.53 for every million British thermal unit (mmBtu). This is compared to a $1.15 positive price in 2025, and $2.88 positive over the last five years.

Electric Reliability Council of Texas regions such as West and Panhandle also had negative power prices for several hours.

TOO MUCH POWER IS CALIFORNIA

In California, the electric prices have also fallen.

Spot power at South Path 15 (SP-15 Hub) The price of electricity fell below zero on Tuesday for the first since March 2025. It was a negative 72 cents a megawatt-hour (MWh), down from $1.88, a positive amount, for Monday.

This compares to a negative average of $16.85 in May 2024 and a positive average of $19.80 in 2026. In 2025 the average was $28.44 and in the last five years, it was $53.02. SP-15 prices were in the negative two times each in 2025, and 18 times in 2024.

Gas prices are low at the PG&E citygate because there is little demand for electricity. The price of mmBtu in Northern California dropped to a new record low for the second day in a?row, falling to $1.21 on Tuesday. This compares to averages of $3.42 per mmBtu in 2025 and $1.95 in 2026.

Power traders have noted that power prices often turn negative in western areas of the U.S. during the spring, when warmer temperatures melt snow in the mountains and increase the amount of water available to hydropower.

The U.S. Northwest River Forecast Center, which tracks water flow in the Pacific Northwest region, predicted that the amount of water in the Dalles Dam along the Columbia River between Washington State and Oregon in 2026 would be 103% more than normal.

This is well above the levels of 80% in fiscal 2025. 77% in 2024. and 76% in Fiscal 2023.

The Dalles Dam is the second-to-last on the lower Columbia River. It's a critical point for measuring the amount of water that can be used to generate electricity in the Northwest. Reporting by Scott DiSavino, New York; Tim McLaughlin, Boston; Editing by Louise Heavens

(source: Reuters)