As California Air Resources Board staff seeks feedback on reporting requirements for a new policy framework designed to support and accelerate production of zero-emission medium- and heavy-duty trucks, it is clear, based on the wide-ranging variety of questions posed by those in attendance a…

California's transportation sector represents its largest share of greenhouse gas emissions, but an executive order from Gov. Gavin Newsom aims to change that while also creating opportunities for economic growth and manufacturing in the Golden State.

The California Public Utilities Commission on Sept. 24 unanimously approved construction of an overhead power line through a high-fire-risk area in San Diego County for reliability purposes, despite opposition from hundreds of local residents and organizations, who asked the commission to pl…

The California Public Utilities Commission is proposing a building-electrification program for people who lost their homes in wildfires or other natural disasters and are trying to rebuild.

The California Air Resources Board is considering new regulations that would standardize electric-vehicle charging port designs for all 2026 and subsequent model year EVs.

A dairy farm in Buttonwillow is supplying about 8.3 million kWh of renewable electricity each year to Northern California's power grid, but the future of biogas in the state's clean generation mix is uncertain.

Investor-owned electric utilities in California more effectively deployed public-safety power shut-offs across the state this week compared with last year's PSPS events, utility officials told the California Public Utilities Commission Sept. 9.

The California Energy Commission on Sept. 9 postponed its decision to provide a small-power-plant exemption for 54 large diesel generators near an elementary school in Santa Clara, because of "recent energy emergencies" in the state, Commissioner Karen Douglas said at the CEC's board meeting.

State water officials on Sept. 1 issued a controversial decision that will keep four natural gas-fired power plants operating for up to three years after they were scheduled to be retired to comply with once-through-cooling regulations.

California's electricity-generation future includes adding record amounts of solar generation and battery storage each year over the next 25 years while keeping the majority of natural gas generation resources in use through 2045, state agencies said.

California air officials Aug. 27 approved what they say are "groundbreaking" regulations aimed at reducing harmful emissions from vessels at berth in state ports, and a separate package of rules designed to reduce emissions from heavy-duty truck engines by 2024.

The California Public Utilities Commission on Aug. 27 approved a batch of power-purchase agreements between utilities and natural gas power plants and battery energy storage facilities, including about 1,430 MW of resource-adequacy capacity from the Moss Landing natural gas-fired plant in Mo…

The California Public Utilities Commission is asking investor-owned utilities to evaluate their aging infrastructure "in a time of worsening climate impacts," specifically in the state's poorest and most polluted neighborhoods, according to a CPUC decision approved this week.

The California Public Utilities Commission is searching for emergency power generation resources, other than diesel fuel, to energize substations during planned grid outages, but acknowledges the state might need to rely on other fossil fuels, such as natural gas, in the coming years.

The leaders of California's energy regulatory bodies this week promised an investigation into the root causes of the state's rolling blackouts that occurred during a long heat wave and a global pandemic.

Electricity loads in California—a topic of national interest this week—could increase by up to 90 percent from today's totals, if the state is to reach its carbon-neutrality requirement by 2045, according to a draft report presented to the California Air Resources Board this week.

The California Energy Commission this week granted a small power plant exemption for more than 30 large diesel generators at a data center in Santa Clara, but chose not to analyze the greenhouse gas emissions impacts of the generators when they are fired up during a grid outage.

Pacific Gas & Electric's felony probation judge has imposed three additional probation conditions on the investor-owned utility, saying PG&E is not in full compliance with its wildfire mitigation plan.

California’s grid operator is facing tougher federal scrutiny of its long-running practice of making out-of-market payments to generation units otherwise set to retire, which has been controversial since they are often natural gas-fired power plants.

Energy regulators in California are searching for ways to install more microgrids across the state, but at the same time are trying to determine what the word “microgrid” really means.

The California Public Utilities Commission on Aug. 6 decided that solar energy providers in the state must use a set of standardized energy savings assumptions when presenting potential electricity bill savings to customers.

The California Public Utilities Commission is proposing a microgrid pilot program that would increase reliability at critical public facilities during grid outages in the next five years, and could include fossil-fuel generation resources, according to the commission.

Several simulations of the Southern California natural gas infrastructure system indicate Aliso Canyon might still be needed to ensure system reliability and keep costs low in extreme operational conditions that occur once every decade, although the system might be able to get by without sup…

Pacific Gas & Electric has resumed installation of electric-vehicle charging ports at workplaces and multi-unit dwellings after about a three-month delay due to the COVID-19 pandemic.

The California Energy Commission is offering $3 million for planning blueprints that identify actions and milestones needed to implement medium- and heavy-duty zero-emission vehicles and related electric charging or hydrogen fueling infrastructure.

Energy and aeronautical researchers in California have identified 564 strong methane point sources in the state, according to California Energy Commission study released July 23. The large methane sources accounted for more than a third of the state's total methane inventory in 2016, the stu…

The California Air Resources Board on July 23 approved two research projects to study the relationship between poor air quality in California and COVID-19 death rates in the state.

The California Public Utilities Commission on July 16 approved a set of utility affordability metrics, and did so in the "nick of time," CPUC President Marybel Batjer said. Tens of thousands of people have enrolled in utility bill support programs over the past year, while COVID-19 continues…

The California Coastal Commission on July 16 approved Southern California Edison's inspection and maintenance program for the Holtec UMAX spent nuclear fuel storage facility at the San Onofre Nuclear Generating Station. The independent spent-fuel storage installation was licensed by the U.S.…

Diesel generators of many sizes are spreading across communities and businesses in California, raising alarm from residents, health experts and energy regulators—including California Public Utilities Commission President Marybel Batjer, who at a public workshop on July 7 said she is "concern…

The California Energy Commission on July 8 approved the allocation of about $22 million for energy storage projects that use non-lithium-ion technology and Title 24-compliant energy storage methods.

The California Air Resources Board is considering expanding emissions controls for oceangoing vessels at berth in the state's ports, a proposal designed to protect nearby communities from pollution emanating from port activities.

The majority of accidental methane emissions from commercial buildings in California occur in a small percentage of those buildings, according to a June report from the California Energy Commission.

The federal Bureau of Ocean Energy Management at a public workshop on July 1 presented images of towering wind turbines in the ocean near Morro Bay and Big Sur, trying to address concerns from local residents and business owners who say the spinning structures could detract from the aestheti…

The California Air Resources Board at its June 25 meeting adopted a new policy designed to support and speed up the production of zero-emission medium- and heavy-duty trucks.

The California Public Utilities Commission on June 25 approved a slew of new and revised resource-adequacy rules in order to solve "really difficult issues as the market tightens," Commissioner Liane Randolph said.

California wildfire safety officials and advisors hope utilities will build on lessons learned as they develop their annual wildfire mitigation plans with a "utility maturity model" in mind.

Biomethane can be safely used in California, but exposure to the substance could damage DNA more than petroleum natural gas, according to a May report published by the California Energy Commission.