Gas and power grid link means l. a. could be gigawatts short this summer – ieee spectrum

Video: Environmental Defense Fund A Potent Plume: An infrared camera spotted the greenhouse gas methane pouring from California’s Aliso Canyon storage site last year.

Grid operators in Southern California are on edge in the aftermath of a massive leak from Aliso Canyon, the region’s largest natural-gas storage facility. Gas jet With the storage field shuttered until further notice, inadequate supply to gas-fired power plants in the Los Angeles basin could force rolling blackouts this summer, which begins this month. Electricity notes physics These might affect “millions of utility customers” for up to 14 days, according to a joint report by state agencies and utilities.

Southern California‘s dilemma is indicative of the U.S. Hp gas online login power supply’s growing exposure to gas pipeline constraints as gas-fired generation has surged, recently overtaking coal as the country’s top electricity source. Grade 6 electricity Unlike coal, which is stockpiled at power plants, natural gas is a “just-in-time” fuel. Electricity word search pdf Recent efforts to model the combined dynamics of the interconnected but separately operated gas and power systems reveal other vulnerabilities across the country that could lead to power outages. Electricity generation “The provision of reliable service in both gas and power operates on quite a delicate balance,” says Francis O’Sullivan, director of research for the MIT Energy Initiative.

Trouble at Aliso Canyon began in October 2015 when a storage well sprang a leak, spewing nearly 100,000 metric tons of natural gas before the Southern California Gas Co. Gas in oil lawn mower plugged it in February. Ortega y gasset obras completas Health concerns and the released gas’s odor drove thousands of nearby residents from their homes. Static electricity in water And the methane’s potent global warming potential—more than 80 times as much as carbon dioxide’s within a 20-year time frame—set back the state’s climate change goals. Electricity and circuits class 6 cbse Regulators ordered Aliso’s 113 other wells shut off pending inspections, which L.A.-based SoCalGas hopes to complete in August.

Shutting Aliso removed a critical gas supply buffer. Mp electricity bill payment online jabalpur During periods of high demand—such as hot summer days when gas-fired generators run full tilt to power air conditioners—SoCalGas’s imports to the L.A. Gas 47 cents basin via major pipelines fall short. Electricity and circuits physics On such days the utility normally releases gas from the Aliso wells to bolster deliveries. Gas vs electric water heater savings Even with Aliso it came up short for two days during a heat wave last summer, forcing a 2,100-megawatt reduction in gas-fired generation in the L.A. Gas vs electric oven efficiency basin.

Growing reliance on wind and solar power adds to the challenge. Gas in dogs symptoms Gas-fired plants ramp up and down to balance the varying supply from renewable power. Electricity bill saudi electricity company One risk scenario for this summer is that ramping gas plants could exceed the ability of the gas supply to respond. Static electricity zap This possibility comes from a joint technical report released in April by state energy regulators, SoCalGas, L.A.’s municipal power utility, and the California Independent System Operator (which runs the state’s power grid and markets). Electricity per kwh Quick bursts of power generation could pull pipeline pressure below the system’s minimum thresholds, causing equipment failures such as automatic turbine shutdowns.

Relying on gas plants to balance solar and wind generation could have increasingly severe impacts as their penetration grows, according to gas flow modeling by researchers at Los Alamos National Laboratory, in New Mexico. Gas city indiana newspaper Their December 2015 report in the journal Applied Energy modeled the Transco pipeline system, which moves gas between the Gulf of Mexico and New York City. Gas 0095 In their simulation, ramping up generators to balance wind energy unleashed shock waves that caused rapid “jitter” in gas pressure across the 16,415-kilometer gas network.

The Los Alamos team has since created simulation tools that can coordinate operations of gas and power infrastructure to make optimal use of both systems, says Michael Chertkov, who is affiliated with Los Alamos’s Center for Nonlinear Studies and is also an adjunct professor at Moscow’s Skolkovo Institute of Science and Technology. Gas finder rochester ny For example, Chertkov says future simulations could identify optimal use of pipeline compressor stations to dampen dangerous jitter and maximize gas throughput.

For their part, California energy leaders are pursuing a suite of near-term measures to evade blackouts this summer. Electricity questions and answers physics Several involve more closely aligning the traditionally distinct gas and power markets in a bid to ensure that the gas supply SoCalGas musters translates into as much electricity as possible.

Other strategies include adding more battery storage than originally planned and controlling energy demand. Gas and water company Southern California Edison is expanding the “demand response” capacity, which enables it to remotely reduce some customers’ electricity use when supply is tight. Electricity cost per kwh south africa The Rosemead, Calif.–based utility created a $75 rebate to encourage customers to let it turn off their home air conditioners via Internet-connected thermostats. Electricity for dummies amazon Kevin Wood, SCE’s principal manager for energy programs, says the utility had hoped to recruit 5,000 customers by 2018, but with the incentive, it’s now targeting 10,000 this year and 20,000 more in 2017.

In all, she says SCE could add about 33 MW in demand-response capacity this year. Gas youtube That seems small next to the potential for shortfalls exceeding 4 gigawatts this summer identified by the joint agency report, Wood acknowledges, but she says it could also be decisive: “We could be in a position where we’re 100 MW short, or very close, where this could make the difference. P gasol stats We’ll only know after the summer.”

Environmentalists in California argue that advanced technologies such as demand response and batteries will ultimately eliminate the state’s need for gas-fired power plants. 76 gas station credit card login But energy experts such as O’Sullivan at MIT say that the all-renewable energy future they envision is still decades away, and call for upgrades to gas networks: “When you have low output, you’re going to have to rely on that infrastructure.”