Sub-station

cost of power inverter As solar floods California grid, challenges loom

by:KEBO      2019-11-14
Some of the 749,088 solar panels at the California Valley Solar Farm near Santa Marita Tower, California.On Friday, in Obispo County, St. Louis.August 28, 2015.Some of the 749,088 solar panels at the California Valley Solar Farm near Santa Marita Tower, California.On Friday, in Obispo County, St. Louis.August 28, 2015.The same fine and sunny weather is raging in most parts of California.triple-This week's heat has also helped record-setting solar power plants in the state, briefly providing enough power to more than 6 million households.Just after 1 p.m.On Tuesday, large solar power plants distributed across California generated a record 8,030 MW of electricity, according to data from California's independent system operators, which manages most of the state's power grids.This is almost double the amount of solar power generated in California two years ago.It doesn't even count the power generated by thousands of small rooftop solar arrays across the state.But given that the sun does not shine at night, the wind is also intermittent, and the effort to increase renewable energy is complicated.The production of the steering update solar power plant peaked at noon, remained close to that level for a few hours, and then dropped sharply later in the afternoon.From late afternoon to late evening, California's wind farm generated most of the electricity.At the same time, demand for electricity tends to peak daily at around 6 p.m.—Just as solar energy is disappearing and the wind is still accelerating.To fill this gap, the state relies on power plants that burn natural gas, as well as power plants that can quickly increase production.Utilities such as Pacific Gas and PowerIt also provides customers with incentives to use less power through measures such as turning off lights at critical afternoon hours.On Friday, for example, PG & E asked some customers to turn off equipment between 2 and 7 p.m.Steve Berberich said that reversing the plan "we are changing our model from traditional resources that are mainly increased by renewable energy to traditional resources based on increased renewable energy, mainly natural gas, "The CEO of the independent system operator, in a recent interview."Our goal is to make the gas element as small as possible."As part of the fight against global warming, California law requires utilities to get 33% of their electricity from the sun, wind and other renewable sources by 2020 and 50% by 2030.When demand for electricity peaked at 5: 54 on Tuesdaym.According to independent system operators, nearly 29% of electricity on the internet comes from renewable energy sources.According to operators, renewable energy accounted for 56% of the power grid in the short period of May 16.These figures do not include electricity generated by more than 537,000 rooftop solar arrays for California homes and businesses.Together, these arrays can generate up to 4,211 MW of electricity.Megawatt is a snapshot number that is about the equivalent of the amount of electricity used by 750 typical households at one point.Tony Earley, CEO of PG & E, California's largest utility, said last month that 30% of the company's current electricity comes from renewable energy and could reach 33% by the end of this year.PG & E also owns a number of large hydropower dams, but they are not included in California's renewable energy targets under state law.The company estimates that California's use of solar and wind energy will increase by 1-2% per year.However, renewable energy prices are falling rapidly as more solar and wind projects go live.Falling prices and rising renewable energy and falling prices have led PG & E to decide recently to close the last nuclear power plant in California, Diablo Canyon, in 2025.PG & E has promised to replace the plant with a power source that does not emit greenhouse gases into the atmosphere, so that the utility will receive 55% of its electricity from renewable sources by 2031."Every time we go out and bid, renewable energy prices are falling, especially photovoltaic (solar), and there is no reason for us to believe that this will not continue," Earley said .".Paradoxically, California has added solar power plants so quickly that the grid does not always have room for all power.On Tuesday, for example, grid operators had to cut solar power by 292 MW hours, equivalent to 292 MW in an hour.Therefore, independent system operators are exploring the possibility of launching a unified electricity market covering most Western countries, so that California's solar power plants and wind power plants can sell excess power to customers outside the state."I think there is no social or economic significance in closing zero --carbon, zero-Edge cost capabilities are so frequent, "Berberich discussed more this week.state market."The opportunity to sell this power outside the government...Allow renewable energy to flourish in California.
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