Energy is a major area of theeconomy of California. California is the state with the largest population and the largest economy in theUnited States. It is second in energy consumption[2] afterTexas.[3] As of 2018[update], per capita consumption was the fourth-lowest in the United States partially because of the mild climate andenergy efficiency programs.[4]
Energy consumption inCalifornia is dominated by transportation, due to the high number of motor vehicles and long commutes. California also is responsible for about 20% of total jet fuel consumption in the United States. The second largest energy sector is industry. Energy consumption of the state's residential sector per capita is lower than that of any other state except Hawaii thanks to a relatively mild climate.[5]
California has large energy resources, being among the top producers of oil, hydroelectricity, solar, biomass, and geothermal energy in the United States.
Natural gas-firedpower plants typically account for almost one-half of in-stateelectricity generation. California is one of the largesthydroelectric power producers in the United States, and with adequate rainfall, hydroelectric power typically accounts for close to one-fifth of State electricity generation. Due to strict emission laws, only one coal-fired power plant remains operating in California, the 63-megawattArgus Cogeneration Plant inTrona (San Bernardino County).[6]
California's peakelectricity demand of 52,061megawatts occurred on September 6, 2022, during one of the longest and hottest Septemberheatwaves on record, which encompassed multiple Western states.[7][8] Widespreadrolling blackouts were narrowly avoided due to conservation efforts, though several thousand customers inPalo Alto andAlameda had their power cut when theCalifornia Independent System Operator told those cities' municipal power companies to shed load.[7][8] The CEO of CAISO stated that the 3,300 megawatts ofgrid storage batteries added since the August 2020 rolling blackouts were definitely helpful during this event.[7] The previous peak was on July 24, 2006, at 2:44 pm, with 50,270 MW. After the 2006 record, measures to reducepeak load resulted in decreased peak demand, even as the state's population continued to grow.[9] On September 1, 2017, the peak load was 50,116 MW.[10]
Although California's population increased by 13% during the 1990s, the state did not build any new major power plants during that time, although existing in-state power plants were expanded and power output was increased nearly 30% from 1990 to 2001. However, between 2000 and 2015, California built nearly 500 new power plants to supplement the 700 operating in 2000, boosting power supplies by 43%.[11]
In 2016, California Public Utilities Commission (CPUC) announced new rules for connecting coming generation sources to grid. Connection costs must be estimated by the utility, and the developer is limited to paying within ±25% change of the estimate. CPUC expects the rules to lower overall costs for ratepayers.[12][13][14] California requires 1.3 GW of utility storage[15] and studies long duration bulk energy storage. The state allocated US$83 million per year during 2017-2019 for behind-the-meter storage.[16] The plan was amended in 2020 to a combined $613 million by 2024.[17]
California's electricity rates are among the highest in the United States as a result of the changing energy mix within the state, including aggressive construction of new natural gas power plants.[11] As of 2021[update] California's electricity costs were 19.7 cents per kWh.[18] Due to high electricity demand, and lack of local power plants, California imports more electricity than any other state,[19] (32% of its consumption in 2018[1]) primarily wind and hydroelectric power from states in the Pacific Northwest (viaPath 15 andPath 66) and nuclear, coal, and natural gas-fired production from the desert Southwest viaPath 46.[20] Imported coal-fired electricity is expected to decline as power agreements expire and the city of Los Angeles phases out its use of such electricity by 2025.[21][22] In 2018,curtailment was 460 GWh, or 0.2% of generation,[23] but has increased since.[24][25]
Major blackouts in California include:
In August 2020, during a heat wave which affected the entire West coast, air conditioning usage caused the peak load to hit 47 GW, and CAISO issuedrolling blackouts to avoid a larger system shutdown. The state did not have enough generation ready to fulfill demand, and it was unable to import sufficient electricity from neighboring states who had no surplus themselves.[26][27] A 4 GWdemand reduction alleviated the grid shortfall in the days after the blackouts.[28][29] State agencies identified three main causes: inadequate preparation for heat waves made worse by climate change, insufficient power in the early evening due to sequencing errors in the shift to renewable energy, and market mechanisms that allowed power to be exported during the shortage.[30]
Theelectric grid is made of upelectric transmission andelectric distribution, with electric production by itself averaging about 44% of the cost nationally.[31] As of 2019, transmission costs are the fastest-growing part of the bill, and Transmission Access Charges (TAC) are applied regardless of how far electricity travels across the grid.[32]
California is part of theWestern Interconnection, with transmission lines connecting to the Pacific Northwest including theCalifornia Oregon Intertie (with a capacity of almost 5 GW) as well as thePacific DC Intertie, aHVDC line with a capacity of 3.1 GW which brings (predominantly hydroelectric) power from the Pacific Northwest to the Los Angeles area. From Utah, a 2.4 GW HVDC line,Path 27, provides coal generated electricity to Los Angeles. From the Southeast,Path 46 brings up to 10.6 GW of electricity from sources including hydroelectric,fossil fuels, nuclear, and solar from generating stations in Nevada and Arizona.
Transmission lines under construction as of 2019 include theTransWest Express, which would connect Wyoming to Nevada, which is already connected to Southern California viaPath 46.
While experts have stated that more grid connections to other states would allow California to export its excess solar and wind generated electricity to other states during sunny times of the day, and to import wind generated electricity when wind is blowing in other Western states but not in California, the legislature has resisted allowing more connections for fear of losing sovereignty over the state's electricity supply.[33][34][35]
As of 2018[update], California had 80 GW of installed generation capacity encompassing more than 1,500 power plants; with 41 GW of natural gas, 26.5 GW of renewable (12 GW solar, 6 GW wind), 12 GW large hydroelectric, and 2.4 GW nuclear.[1]: 1
In 2006, the California legislature passed theGlobal Warming Solutions Act of 2006 which set a goal for 33% of electricity consumption in California to be generated by renewable sources by 2020.[36]
In 2015, SB350 mandated that electric utilities purchase 50% of their electricity from renewable sources by 2030.[37]
Then in 2018, Senate Bill 100 was passed which increased the renewables requirement for electric utilities to 50% by 2026, 60% by 2030, and 100% by 2045.[38]
As of 2019[update],California natural gas plants supplied a third of the state's total demand for electricity, (almost half of the state's in-state generation[1]) and supply the state with 41,000 megawatts of installed capacity.[39] Because renewables cannot generate power 24/7, and it is cost prohibitive to install enough solar panels, wind turbines and batteries to supply sufficient electricity to ensureresource adequacy during extended cloudy or windless periods, researchers have estimated that the state will still need between 17 and 35 GW of natural gas fueled capacity in 2050.[40][39]: 1 [41]
California leads the nation in electricity generation from non-hydroelectricrenewable energy sources, includinggeothermal power,wind power, andsolar power. California has some of the most aggressive renewable energy goals in the United States.[42] The state is required to obtain at least 33% of its electricity from renewable resources by 2020, and 50% by 2030, excluding large hydro.[43][44] On May 13, 2017, theCalifornia Independent System Operator (ISO) reported that the state had broken a new instantaneous renewable energy record, with non-hydro renewables providing 67.2% of the total electricity on the ISO's grid, with another 13.5% being provided by hydro.[45] Intermittent solar power has led to a peak demand and peak production imbalance creating a "duck curve", where traditional power plants produce little generation at noon, ramping fast to high generation at dusk.[23]
Solar Energy Generating Systems (SEGS) is the name given to ninesolar power plants in theMojave Desert which were built in the 1980s. These plants have a combined capacity of 354megawatts (MW) making them at one time the largestsolar power installation in the world.[46] Other large solar plants in the Mojave Desert include the 392 MWIvanpah Solar Power Facility,[47] opened in 2014, and the 550 MWDesert Sunlight Solar Farm and 579 MWSolar Star, both completed in 2015. TheBeacon Solar Project, which generates 250 MW for theLADWP, was completed in 2017 in the northwesternMojave Desert.[48]
TheAlta Wind Energy Center in theTehachapi Mountains is the largest wind power plant in the United States with 1,548 MW installed capacity.[49] A facility known as "The Geysers," located in theMayacamas Mountains north of San Francisco, is the largest group of geothermal power plants in the world, with more than 750 MW of installed capacity. California'shydroelectric power potential ranks second in the United States (behindWashington State), and substantialgeothermal andwind power resources are found along the coastal mountain ranges and the eastern border withNevada. Highsolar power potential is found in southeastern California'sdeserts.
California hasseveral largepumped-storage hydroelectric powerplants.
Assembly Bill 2514 directed the California Public Utilities Commission (CPUC) to adopt an energy storage program and procurement target.[50] As a result, the CPUC established an energy storage target of 1,325 MW by 2020.[51] In 2014,Southern California Edison commissioned the 8MW/32MWhTehachapi Energy Storage Project, which was the largestlithium-ion battery system operating inNorth America and one of the largest in the world at the time of commissioning.[52][53] The 1-hour 230 MWGateway Energy Storage project near San Diego became thebiggest Lithium-ion grid storage in 2020,[54] and several more are under construction, such asthe two at Moss Landing.
California used to have multiplenuclear power plants, including theRancho Seco Nuclear Generating Station, theSan Onofre Nuclear Generating Station, theVallecitos Nuclear Center,[55] and theHumboldt Bay Nuclear Power Plant,[56] in addition to various other smaller experimental or prototype reactors which intermittently supplied power to the grid, such as theSodium Reactor Experiment. All of these reactors have been shut down due to both economic and social factors.[57][58] California's single remaining operational facility is theDiablo Canyon Power Plant. The owner,Pacific Gas & Electric, had previously agreed to shut down the two reactors at the site in 2025, but California State Lawmakers have since passed Senate Bill 856 on September 1, 2022, to extend Diablo Canyon operations through 2030.[59][60] The plant produces about 18 TWh per year.[61] and accounts for 9% of total in-state generation.
The 3937 MWPalo Verde Nuclear Generating Station inTonopah,Arizona exports power to California viaPath 46 and is over 27% owned by California utility companies.
TheCalifornia Energy Commission is the primary energy policy and planning agency. As of 2017, California is a deregulated electricity market.[63] It has a number of electricload-serving entities, including as of 2015 six investor-owned utilities (IOU), 46 publicly owned utilities, 4 electric cooperatives, 3community choice aggregators, and 22 electric service providers.[63] Major investor-owned utilities, regulated by theCalifornia Public Utilities Commission, includeSouthern California Edison,Pacific Gas & Electric, andSan Diego Gas & Electric.[64] The remaining 3 IOUs arePacificorp,Bear Valley Electric, andLiberty Utilities.[65]
California has aregional transmission organization calledCAISO covering its state, but is not merged with the rest of theWestern United States; merging has been a major policy discussion with proposals considered in 2017 and 2018.[66]
California's investor-owned utilities were transitioning totime-of-use pricing, with SD&E slated to roll it out in 2019 and the others rolling it out in 2020.[67]
As of 2021[update], 30.1% of electricity was imported (11.7% from Northwest and 18.4% from Southwest) out of which 22.6% was of unspecified origin and 30.9% were renewables. This compares with 33.6% of in-state generated electricity which comes from renewables.
| Year | Natural gas | Total Renewables | Solar | Wind | Small hydro | Geothermal | Biomass | Large hydro | Coal | Nuclear | Unspecified | Imported | References |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2009 | 42.0% | 12.0% | 0.3% | 3.1% | 1.7% | 4.6% | 2.3% | 9.1% | 8.1% | 13.1% | 15.7% | ||
| 2010 | 41.9% | 13.9% | 0.3% | 4.7% | 1.9% | 4.6% | 2.4% | 10.5% | 7.7% | 13.9% | 12.0% | ||
| 2011 | 35.3% | 14.1% | 0.4% | 5.0% | 2.1% | 4.5% | 2.1% | 13.0% | 8.2% | 15.2% | 14.2% | ||
| 2012 | 43.4% | 15.4% | 0.9% | 6.3% | 1.5% | 4.4% | 2.3% | 8.3% | 7.5% | 9.0% | 16.4% | ||
| 2013 | 44.3% | 18.8% | 1.8% | 8.6% | 1.3% | 4.5% | 2.7% | 7.8% | 7.8% | 8.8% | 12.5% | ||
| 2014 | 44.5% | 20.1% | 4.2% | 8.1% | 1.0% | 4.4% | 2.5% | 5.4% | 6.4% | 8.5% | 15.0% | 32.9% | [68] |
| 2015 | 44.0% | 21.9% | 6.0% | 8.2% | 0.9% | 4.4% | 2.6% | 5.4% | 6.0% | 9.2% | 13.5% | 33.6% | [69] |
| 2016 | 36.5% | 25.5% | 8.1% | 9.1% | 1.7% | 4.4% | 2.3% | 10.2% | 4.1% | 9.2% | 14.4% | 31.8% | [70] |
| 2017 | 33.7% | 29.0% | 10.2% | 9.4% | 2.7% | 4.4% | 2.4% | 14.7% | 4.1% | 9.1% | 9.3% | 29.3% | [71] |
| 2018 | 34.9% | 31.4% | 11.4% | 11.5% | 1.6% | 4.5% | 2.4% | 10.7% | 3.3% | 9.1% | 10.5% | 31.8% | [72] |
| 2019 | 34.2% | 31.7% | 12.3% | 10.2% | 2.0% | 4.8% | 2.4% | 14.6% | 3.0% | 9.0% | 7.3% | 27.8% | [73] |
| 2020 | 37.1% | 33.1% | 13.2% | 11.1% | 1.4% | 4.9% | 2.4% | 12.2% | 2.7% | 9.3% | 5.4% | 30.0% | [74] |
| 2021 | 37.9% | 33.6% | 14.2% | 11.4% | 1.0% | 4.8% | 2.3% | 9.2% | 3.0% | 9.3% | 6.8% | 30.1% | [75] |
| 2022 | 36.4% | 35.8% | 17.0% | 10.8% | 1.1% | 4.7% | 2.2% | 9.2% | 2.2% | 9.2% | 7.1% | 29.2% | [76] |
| 2023 | 36.6% | 36.9% | 17.0% | 11.2% | 1.8% | 4.8% | 2.1% | 11.7% | 1.8% | 9.3% | 3.7% | 23,3% | [77] |
| Year | Wind | Solar | Small hydro | Geothermal | Biomass | Large hydro | Coal | Nuclear | Natural gas | Renewable |
|---|---|---|---|---|---|---|---|---|---|---|
| 2009 | 3.0% | 0.4% | 2.0% | 6.2% | 2.9% | 12.1% | 1.8% | 15.2% | 56.3% | 14.5% |
| 2010 | 3.0% | 0.4% | 2.4% | 6.2% | 2.8% | 14.3% | 1.7% | 15.7% | 53.4% | 14.9% |
| 2011 | 3.8% | 0.5% | 3.1% | 6.3% | 2.9% | 18.2% | 1.6% | 18.2% | 45.4% | 16.6% |
| 2012 | 4.6% | 0.9% | 2.1% | 6.4% | 3.0% | 11.7% | 0.8% | 9.3% | 61.1% | 17.1% |
| 2013 | 6.4% | 2.2% | 1.7% | 6.3% | 3.2% | 10.4% | 0.5% | 9.0% | 60.5% | 19.6% |
| 2014 | 6.5% | 5.3% | 1.2% | 6.1% | 3.4% | 7.1% | 0.5% | 8.6% | 61.3% | 22.8% |
| 2015 | 6.2% | 7.7% | 1.2% | 6.1% | 3.2% | 5.9% | 0.3% | 9.5% | 59.9% | 24.5% |
| 2016 | 6.8% | 10.0% | 2.3% | 5.8% | 3.0% | 12.3% | 0.2% | 9.6% | 49.9% | 27.9% |
| 2017 | 6.2% | 11.8% | 3.1% | 5.7% | 2.8% | 17.9% | 0.2% | 8.7% | 43.4% | 29.7% |
| 2018 | 7.2% | 14% | 2.1% | 5.9% | 3.0% | 11.3% | 0.15% | 9.4% | 46.5% | 32.3% |
| 2019 | 6.8% | 14.2% | 2.7% | 5.5% | 2.9% | 16.5% | 0.1% | 8.1% | 43.0% | 32.1% |
| 2020 | 7.2% | 15.4% | 1.8% | 5.9% | 3.0% | 9.4% | 0.2% | 8.5% | 48.4% | 33.4% |
| 2021 | 7.8% | 17.1% | 1.3% | 5.7% | 2.8% | 6.2% | 0.2% | 8.5% | 50.2% | 34.8% |
| 2022 | 6.9% | 19.9% | 1.5% | 5.5% | 2.6% | 7.2% | 0.1% | 8.7% | 47.5% | 36.4% |
| 2023 | 6.5% | 19.2% | 2.3% | 5.1% | 2.3% | 12.6% | 0.1% | 8.2% | 43.7% | 35,3% |
| Year | Wind | Solar | Small hydro | Geothermal | Biomass | Large hydro | Coal | Nuclear | Natural gas | Total |
|---|---|---|---|---|---|---|---|---|---|---|
| 2002 | 3.5 | 0.9 | 4.4 | 13.9 | 7.1 | 26.9 | 27.6 | 34.4 | 90.9 | 209.7 |
| 2003 | 3.5 | 0.8 | 5.1 | 13.8 | 5.6 | 30.9 | 27.2 | 35.6 | 92.4 | 214.8 |
| 2004 | 4.3 | 0.7 | 4.7 | 14.0 | 5.9 | 29.7 | 28.6 | 30.2 | 105.0 | 223.1 |
| 2005 | 4.4 | 0.7 | 5.4 | 14.4 | 6.0 | 34.5 | 28.1 | 36.2 | 96.1 | 225.8 |
| 2006 | 4.9 | 0.6 | 5.8 | 13.5 | 5.7 | 43.1 | 17.6 | 32.0 | 107.0 | 230.1 |
| 2007 | 5.7 | 0.7 | 3.7 | 13.0 | 5.4 | 23.3 | 4.2 | 35.7 | 118.3 | 209.9 |
| 2008 | 5.7 | 0.7 | 3.7 | 12.9 | 5.7 | 21.0 | 4.0 | 32.5 | 122.2 | 208.5 |
| 2009 | 6.3 | 0.9 | 4.0 | 12.9 | 5.9 | 25.1 | 3.7 | 31.5 | 116.7 | 207.2 |
| 2010 | 6.2 | 0.9 | 5.0 | 12.7 | 5.8 | 29.3 | 3.4 | 32.2 | 109.8 | 205.4 |
| 2011 | 7.6 | 1.1 | 6.1 | 12.7 | 5.8 | 36.6 | 3.1 | 36.7 | 91.2 | 200.9 |
| 2012 | 9.2 | 1.8 | 4.3 | 12.7 | 6.0 | 23.2 | 1.6 | 18.5 | 121.7 | 199.1 |
| 2013 | 12.7 | 4.3 | 3.3 | 12.5 | 6.4 | 20.8 | 1.0 | 17.9 | 120.9 | 199.8 |
| 2014 | 13.1 | 10.6 | 2.7 | 12.2 | 6.8 | 13.7 | 1.0 | 17.0 | 122.0 | 199.2 |
| 2015 | 12.2 | 15.0 | 2.4 | 12.0 | 6.4 | 11.6 | 0.5 | 18.5 | 117.5 | 196.5 |
| 2016 | 13.5 | 19.8 | 4.6 | 11.6 | 5.9 | 24.2 | 0.3 | 18.9 | 98.8 | 198.2 |
| 2017 | 12.9 | 24.3 | 6.4 | 11.7 | 5.8 | 36.9 | 0.3 | 17.9 | 89.6 | 206.3 |
| 2018 | 14.0 | 27.3 | 4.2 | 11.5 | 5.9 | 22.1 | 0.3 | 18.3 | 90.7 | 194.8 |
| 2019 | 13.7 | 28.5 | 5.3 | 10.9 | 5.9 | 33.1 | 0.3 | 16.1 | 86.1 | 200.5 |
| 2020 | 13.7 | 29.5 | 3.5 | 11.3 | 5.7 | 17.9 | 0.3 | 16.3 | 92.3 | 190.9 |
| 2021 | 15.2 | 33.3 | 2.5 | 11.1 | 5.4 | 12.0 | 0.3 | 16.5 | 97.4 | 194.1 |
| 2022 | 14.0 | 40.5 | 3.0 | 11.1 | 5.4 | 14.6 | 0.3 | 17.6 | 96.5 | 203.3 |
| 2023 | 13.9 | 41.3 | 4.9 | 11.0 | 5.0 | 27.1 | 0.3 | 17.7 | 94.2 | 215.6 |
Peak Loads for each year in Megawatts[79]
California's total plan to decarbonize its economy by 2045 would require up to 70% more electricity consumption compared to 2022, in order to decarbonize parts of the economy reliant on fossil fuels, like the transportation sector and residential heating.[80]
| Year | Gallons | m3 | Change |
|---|---|---|---|
| 2000 | 14,544,627,116 | 55.1×10 | |
| 2005 | 15,937,855,020 | 60.3×10 | |
| 2010 | 14,868,892,787 | 56.3×10 | |
| 2015 | 15,105,348,840 | 57.2×10 | |
| 2016 | 15,487,956,872 | 58.6×10 | +2.5% |
| 2017 | 15,579,525,920 | 59.0×10 | +0.6% |
| 2018 | 15,517,383,271 | 58.7×10 | −0.4% |
| 2019 | 15,428,040,813 | 58.4×10 | −0.6% |
| 2020 | 12,497,552,636 | 47.3×10 | −19.0% |
| 2021 | 13,822,186,081 | 52.3×10 | +10.6% |
| 2022 | 13,629,998,406 | 51.6×10 | −1.4% |
California'scrude oil andnatural gas deposits are located in six geological basins in theCentral Valley and along the coast. California has more than a dozen of the United States' largestoil fields, including theMidway-Sunset Oil Field, the second largest oil field in the contiguous United States.
As of 2022, California'scrude oil output accounted for about 3% of total U.S. production.[84] Drilling operations are concentrated primarily inKern County and theLos Angeles basin.[85] With twenty seven platforms along the coast as of 2020[update], there is substantialoffshore oil and gas production.[86] There is a permanent moratorium on new offshore oil and gas leasing in California waters and a deferral of leasing in Federal waters.[citation needed]
California ranks third in the United States in petroleumrefining capacity, behind Texas and Louisiana, and accounts for about 11% of total U.S. capacity, as of 2012.[85] In addition to oil from California, California's refineries process crude oil fromAlaska and foreign suppliers. The refineries are configured to produce cleanerfuels, including reformulated motorgasoline and low-sulfurdiesel, to meet strict Federal and Stateenvironmental regulations. As of 2017, California has 18 refineries with a capacity to process nearly 2,000,000 US barrels (240,000 m3) per day.[87][88]
Transportation is a major use of energy, driven in part by long commuting distances.[89] In 2017, transportation accounted for 40% of total energy use,[90] and in 2015, transportation was estimated to be the largest source of greenhouse gas emissions.[91]
Gasoline consumption fluctuates with economic conditions and gas prices, but has generally remained flat since 2000, despite increasing population.[92] In 2017, Texas surpassed California in gasoline consumption, despite California having 6 million more vehicles.[93] Most California motorists are required to use a special motor gasoline blend called California Clean Burning Gasoline (CA CBG).[94] By 2004, California completed a transition from methyl tertiary butyl-ether (MTBE) to ethanol as a gasoline oxygenate additive, making California the largest ethanol fuel market in the United States.[citation needed] There are four ethanol production plants in central and southern California, but most of California's ethanol supply is transported from other states or abroad.
As of 2018, California is a leader in the United States inelectric vehicles.[95] California has thesecond highest rate of plug-in cars in the world, trailing behind Norway, and making up half of the electric car market in the US. The Alternative and Renewable Fuel and Vehicle Technology Program,[96] also called the Clean Transportation Program, arose out of 2007 law and is intended to drive growth in electric vehicles.[97] California faces a potential shortage in charging stations,[98] and setup California Electric Vehicle Infrastructure Project (CALeVIP) program to build more chargers.[99] In September 2020, California Gov.Gavin Newsom issued an executive order requiring all passenger cars and trucks (not delivery, long-haul, or construction vehicles) sold after 2035 be fully electric.[100] Experts have estimated that this will increase California's consumption of electric energy by 25%.[101] California operatesVehicle-to-grid (V2G) programs to let electric vehicles supply power to the grid when feasible, and to increase consumption when supply is ample. As of 2020[update], California's EVs have a combined charging capacity of 4.67 GW.[102][26][103]
Buildings use energy for lighting,heating, ventilation, and air conditioning (HVAC) systems, escalators, elevators andwater heating. In addition, municipalities pump water which requires energy; by one estimate, about 19% of electricity is used to treat, pump, and discharge water.[104] About 2/3 of California's home heating is supplied by natural gas, and most new homes are constructed with both natural gas and electric heating.[105]
TheCalifornia Building Standards Code has targeted residential energy efficiency since 1978;[106] Part 11 of the code is theCalifornia Green Building Standards Code.
Californianatural gas production typically is less than 2 percent of total annual U.S. production and satisfies less than one-sixth of state demand.[107][108] California receives most of its natural gas bypipeline from production regions in theRocky Mountains, the Southwest, andwestern Canada.[108] Some of this is seasonally stored in theAliso Canyon Oil Field, and its2015 leak caused California to installgrid batteries to compensate.[109]
California has led the United States from 2010 to 2017 with itssustainable energy plans (also known as "clean energy"), withClean Edge's Clean Energy Index for 2017 rating it at 92.0, with the second ranked state being Massachusetts, at 77.8, and North Dakota the lowest at 8.0. California is the only state with extensive deployment of wind, solar, and geothermal energy. California'sventure capital investments in sustainable energy are greater than the other 49 states combined, at $2.2 billion in 2012.[110] In August 2018, California's legislature passed legislation that mandates completely carbon-free electricity generation by 2045.[111][112]
In September 2019, theEnergy Department announced the reversal of a 2014 regulation that would have taken effect on January 1, 2020 and implemented the last round of energy-saving light bulb regulations outlined by theEnergy Independence and Security Act of 2007.[113][114] The ruling would allow some types ofincandescent bulbs to remain in service. California, along with Colorado, Nevada, Washington, and Vermont, adopted its own energy standards.[115] The California regulations were challenged in court by light bulb manufacturers but a judge ruled it was proper under the congressional exemption previously granted.[116]
Total system electric generation is the sum of all utility-scale in-state generation plus net electricity imports. In 2023, total generation for California was 281,140 gigawatt-hours (GWh), down 2.1 percent (6,080 GWh) from 2022. ... Data reporting requirements for total system electric generation are limited to those projects with a nameplate capacity of 1 MW and larger. As most solar PV systems installed on residential homes and commercial buildings are rated less than 1 MW in capacity, they are typically considered to be distributed generation (also called behind-the-meter generation) and are not required to report to the Energy Commission.
California's total energy consumption is second-highest in the nation, but, in 2018, the state's per capita energy consumption was the fourth-lowest, due in part to its mild climate and its energy efficiency programs.
Widespread blackouts didn't happen Tuesday. But it was close. And on a day when the Bay Area hit all-time heat records across the regions, the drumbeat of power warnings kept residents on edge. At one point, PG&E began notifying 525,000 customers that the blackouts were imminent. ... Palo Alto and Alameda, both of which have their own municipal utilities, were hit with rolling outages Tuesday night. The cities were directed by the ISO to reduce their electrical load. Power was shut off to 1,700 customers in Palo Alto and an unspecified number of customers in Alameda.
{{cite web}}: CS1 maint: archived copy as title (link)From 2013 to 2017, Pennsylvania was the largest net exporter of electricity, sending an annual average of 58 million megawatthours (MWh) outside the state. California was the largest net importer, receiving an average of 89 million MWh annually.
In most cases, it simply does not make economic sense to build all the infrastructure (e.g. transmission lines or energy storage) that would be required to utilize every last drop of renewable electricity
"experts say the rare confluence of circumstances that caused those outages don't have anything to do with" {EV expansion}. The outages the California ISO ordered during a heat wave Aug. 14 and 15 were the product of an unusual combination of circumstances. These included the unexpected shutdown of a natural gas-fueled generating plant, an unexpected delay in returning a second plant to service, smoke from wildfires that reduced the generating capacity of solar units, and the regional nature of the heat wave, which increased air conditioner use in states that ordinarily would be exporting electricity to California.
heat storm, inadequate resource planning targets, as well as some aspects of the day-ahead energy market contributed to the rolling blackouts
Almost a week after the blackouts began, neither the grid operator nor state energy regulators have offered a clear and detailed explanation of why California was so short of power even though peak demand was lower than it had been during other hot days in recent years. They have broadly attributed the energy shortage on their inability to secure more electricity from other states and sources. ... When utilities cut power to their customers, the peak demand had reached 47,000 megawatts on Friday and 45,000 on Saturday. Those were far below the highest day — 50,270 on July 24, 2006 — or the 50,116 clocked three years ago.
Rothleder said overbuilding and curtailment are no substitute for the types of steps California will eventually need to take to fully replace fossil fuels with clean energy, such as investing in big energy storage projects, sharing more solar and wind power with neighboring states, ... Last year, for instance, the Legislature once again rejected then-Gov. Jerry Brown's plan for greater sharing of renewable energy across the West. The proposal would have unified the region's disparate power grids, reducing [solar] curtailment by allowing greater sharing of renewable energy across state lines, but lawmakers feared California could lose its sovereignty over its energy supply.
In addition, Senate leader Kevin de León and Assembly Speaker Anthony Rendon said they did not want California to lose authority to regulate the utility industry. ... Supporters of grid expansion say that a more regional approach to electricity will help manage the variable nature of solar and wind.
Critics, including the Sierra Club and labor unions, have argued the "big grid" concept would give red-state politicians too much sway over California's energy supply and could lead to jobs building solar and wind farms getting shipped out of state. Supporters counter that a coordinated regional grid would reduce the costs of phasing out fossil fuels, partly by giving California easier access to powerful winds that blow across the plains of New Mexico and Wyoming. A single western grid might also make it easier for power managers across the region to coordinate supplies during a heat wave like the one this week, without having to scramble to find available resources.
Electricity and Energy (imported included): Improved appliance efficiency standards and other aggressive energy efficiency measures; 33% renewables by 2020;
Under the legislation, which builds upon standards already on the books, California will need to generate half of its electricity from renewable sources such as solar and wind by 2030. ... Even though the goal of reducing gasoline use was not included in the final legislation, SB 350, Brown plans to use his executive power to keep working on the issue.
Senate Bill 100 by state Sen. Kevin de León (D-Los Angeles) requires the state to obtain all of its electricity from clean sources — such as solar, wind and hydropower — by 2045. The bill also requires electric utilities and other service providers to generate 60% of their power from renewable sources by 2030, up from the 50% goal previously set for that date.
But natural gas, a planet-warming fossil fuel, still generates one-third of the state's power ... The consulting firm released a study in June finding California might still need between 17,000 and 35,000 megawatts of gas capacity in 2050. At the high end, that's not far from the 41,000 megawatts of gas installed today.
Some form of firm generation capacity is needed to ensure reliable electric load service on a deeply decarbonized electricity system. ... Natural gas generation capacity is currently the most economic source of firm capacity. The least-cost electricity portfolio to meet the 2050 economy-wide GHG goals for California includes 17-35 GW of natural gas generation capacity for reliability. This firm capacity is needed even while adding very large quantities of solar and electric energy storage. ... It would be extremely costly and impractical to replace all natural gas generation capacity with solar, wind and storage, due to the very large quantities of these resources that would be required.
{{cite web}}: CS1 maint: archived copy as title (link)In 2014, total system power for California was 293,268 gigawatt-hours (GWh), about 1 percent lower than 2013. California's in-state electricity production remained virtually unchanged from 2013 levels at 198,908 GWh, a difference of less than 1 percent compared to the year before.
In 2015, total system electric generation for California was 295,405 gigawatt-hours (GWh), down about 0.5 percent from 2014's total system electric generation of 297,062 GWh1. California's in-state electricity production was down by 1.5 percent at 196,195 GWh compared to 199,193 GWh.
In 2016, total system electric generation for California was 290,567 gigawatt-hours (GWh), ... While California's in-state electric generation was up by 1.0 percent at 198,227 GWh compared to 196,195 GWh in 2015, net imports were down by 6,869 GWh to 92,341 GWh
In 2017, total system electric generation for California was 292,039 gigawatt-hours (GWh), ... California's in-state electric generation was up by 4 percent to 206,336 GWh compared to 198,227 GWh in 2016 while net imports were down by 7 percent or 6,638 GWh to 85,703 GWh.
In 2018, total generation for California was 285,488 gigawatt-hours (GWh), ... in-state generation dropped by 6 percent (11,494 GWh) to 194,842 GWh. ... Net imports increased by 6 percent (4,944 GWh) to 90,648 GWh
Total system electric generation is the sum of all utility-scale in-state generation plus net electricity imports. In 2019, total generation for California was 277,704 gigawatt-hours (GWh), ... decrease in net imports to 77,229 GWh
Total system electric generation is the sum of all utility-scale in-state generation plus net electricity imports. Total generation for California was 272,576 gigawatt-hours (GWh), down 2 percent, or 5,356 GWh, from 2019.
Total system electric generation is the sum of all utility-scale in-state generation plus net electricity imports. Total generation for California was 277,764 gigawatt-hours (GWh), up 2 percent, or 5,188 GWh, from 2020.
Total system electric generation is the sum of all utility-scale in-state generation plus net electricity imports. Total generation for California was 287,220 gigawatt-hours (GWh), up 3.4 percent, or 9,456 GWh, from 2021.
California's sweeping climate plan would increase electricity consumption by as much as 68% by 2045 — which would put an immense strain on the power grid unless hefty private and public investments are made in clean energy, state air quality officials said Thursday. ... The far-reaching strategy would transform the state, scaling back the use of fossil fuels by 91% by 2045 and scaling up electric cars and use of renewable energy, such as wind and solar. The plan aims to fulfill state mandates to reduce planet-warming emissions 40% below 1990 levels by 2030 and achieve carbon neutrality by 2045. ... To achieve the plan's goals, air board officials project that California will need about 30 times more electric vehicles on the road, six times more electric appliances in homes to replace gas appliances, 60 times more hydrogen supply and four times more wind and solar generation capacity.
California Gov. Gavin Newsom signed an order Wednesday that aims to end the sale of new gasoline and diesel-powered passenger cars in the state by 2035. ... The order also says that, "where feasible," medium- and heavy-duty vehicles such as trucks and construction equipment should be zero-emission by 2045.
Energy consultants and academics say converting all passenger cars and trucks to run on electricity in California could raise power demand by as much as 25%.