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How California's ambitious new climate plan could help speed energy transformation around the world

  • Written by Daniel Sperling, Distinguished Blue Planet Prize Professor of Civil and Environmental Engineering and Founding Director, Institute of Transportation Studies, University of California, Davis
How California's ambitious new climate plan could help speed energy transformation around the world

California is embarking on an audacious new climate plan[1] that aims to eliminate the state’s greenhouse gas footprint by 2045, and in the process, slash emissions far beyond its borders. The blueprint calls for massive transformations in industry, energy and transportation, as well as changes in institutions and human behaviors.

These transformations won’t be easy. Two years of developing the plan have exposed myriad challenges and tensions, including environmental justice, affordability and local rule.

For example, the San Francisco Fire Commission had prohibited batteries[2] with more than 20 kilowatt-hours of power storage in homes, severely limiting the ability to store solar electricity from rooftop solar panels for all those times when the sun isn’t shining. More broadly, local opposition to new transmission lines, large-scale solar and wind facilities[3], substations for truck charging, and oil refinery conversions to produce renewable diesel will slow the transition.

I had a front row seat while the plan was prepared and vetted as a longtime board member[4] of the California Air Resources Board, the state agency that oversees air pollution and climate control. And my chief contributor to this article, Rajinder Sahota[5], is deputy executive officer of the board, responsible for preparing the plan and navigating political land mines.

We believe California has a chance of succeeding, and in the process, showing the way for the rest of the world[6]. In fact, most of the needed policies are already in place.

What happens in California has global reach

What California does matters far beyond state lines.

California is close to being the world’s fourth-largest economy[7] and has a history of adopting environmental requirements that are imitated across the United States and the world. California has the most ambitious zero-emission requirements[8] in the world for cars[9], trucks[10] and buses[11]; the most ambitious[12] low-carbon fuel requirements[13]; one of the largest carbon cap-and-trade programs[14]; and the most aggressive requirements for renewable electricity.

In the U.S., through peculiarities in national air pollution law[15], other states[16] have replicated many of California’s regulations and programs so they can race ahead of national policies. States can either follow federal vehicle emissions standards or California’s stricter rules. There is no third option. An increasing number of states now follow California.

So, even though California contributes less than 1%[17] of global greenhouse gas emissions, if it sets a high bar, its many technical, institutional and behavioral innovations will likely spread and be transformative.

What’s in the California blueprint

The new Scoping Plan[18] lays out in considerable detail how California intends to reduce greenhouse gas emissions 48% below 1990 levels by 2030 and then achieve carbon neutrality by 2045.

It calls for a 94% reduction in petroleum use between 2022 and 2045 and an 86% reduction in total fossil fuel use. Overall, it would cut greenhouse gas emissions by 85% by 2045 relative to 1990 levels. The remaining 15% reduction would come from capturing carbon[19] from the air and fossil fuel plants, and sequestering it below ground or in forests, vegetation and soils.

To achieve these goals, the plan calls for a 37-fold increase in on-road zero-emission vehicles, a sixfold increase in electrical appliances in residences, a fourfold increase in installed wind and solar generation capacity, and doubling total electricity generation to run it all. It also calls for ramping up hydrogen power[20] and altering agriculture and forest management to reduce wildfires, sequester carbon dioxide and reduce fertilizer demand.

This is a massive undertaking, and it implies a massive transformation of many industries and activities.

Transportation: California’s No. 1 emitter

Transportation accounts for about half[21] of the state’s greenhouse gas emissions, including upstream oil refinery emissions. This is where the path forward is perhaps most settled.

The state has already adopted regulations requiring almost all new cars, trucks and buses to have zero emissions – new transit buses by 2029[22] and most truck sales[23] and light-duty vehicle sales by 2035[24].

In addition, California’s Low Carbon Fuel Standard[25] requires oil companies to steadily reduce the carbon intensity of transportation fuels. This regulation aims to ensure that the liquid fuels needed for legacy cars and trucks still on the road after 2045 will be low-carbon biofuels.

Two electric truck cabs are parked on either side of a charger with a sign reading '2 hour charging limit'.
The Port of Long Beach opened the nation’s first publicly accessible charging station for heavy-duty electric trucks in November 2022. Brittany Murray/MediaNews Group/Long Beach Press-Telegram via Getty Images[26]

But regulations can be modified and even rescinded if opposition swells. If battery costs[27] do not resume their downward slide, if electric utilities and others lag in providing charging infrastructure[28], and if local opposition blocks new charging sites and grid upgrades, the state could be forced to slow its zero-emission vehicle requirements.

The plan also relies on changes in human behavior. For example, it calls for a 25% reduction in vehicle miles traveled in 2030 compared with 2019, which has far dimmer prospects. The only strategies[29] likely to significantly reduce vehicle use are steep charges for road use and parking, a move few politicians or voters in the U.S. would support, and a massive increase in shared-ride automated vehicles[30], which are not likely to scale up for at least another 10 years. Additional charges for driving and parking raise concerns about affordability for low-income commuters[31].

Electricity and electrifying buildings

The key to cutting emissions in almost every sector is electricity powered by renewable energy.

Electrifying most everything means not just replacing most of the state’s natural gas power plants, but also expanding total electricity production[32] – in this case doubling total generation and quadrupling renewable generation, in just 22 years.

That amount of expansion and investment is mind-boggling – and it is the single most important change for reaching net zero, since electric vehicles and appliances depend on the availability of renewable electricity to count as zero emissions.

Electrification of buildings is in the early stages in California, with requirements in place[33] for new homes to have rooftop solar, and incentives and regulations adopted to replace natural gas use with heat pumps and electric appliances.

A man and woman stand beside a power box on a home.
Two microgrid communities being developed in Menifee, Calif., feature all-electric homes equipped with solar panels, heat pumps and batteries. Watchara Phomicinda/MediaNews Group/The Press-Enterprise via Getty Images[34]

The biggest and most important challenge is accelerating renewable electricity generation – mostly wind and utility-scale solar. The state has laws in place requiring electricity[35] to be 100% zero emissions by 2045[36] – up from 52% in 2021[37].

The plan to get there includes offshore wind power, which will require new technology – floating wind turbines. The federal government in December 2022 leased the first Pacific sites for offshore wind[38] farms, with plans to power over 1.5 million homes. However, years of technical and regulatory work are still ahead.

For solar power, the plan focuses on large solar farms[39], which can scale up faster and at less cost than rooftop solar. The same week the new scoping plan was announced, California’s Public Utility Commission voted to significantly scale back[40] how much homeowners are reimbursed for solar power they send to the grid, a policy known as net metering. The Public Utility Commission argues that because of how electricity rates are set, generous rooftop solar reimbursements[41] have primarily benefited wealthier households while imposing higher electricity bills[42] on others. It believes this new policy will be more equitable and create a more sustainable model.

Industry and the carbon capture challenge

Industry plays a smaller role, and the policies and strategies here are less refined.

The state’s carbon cap-and-trade program[43], designed to ratchet down total emissions while allowing individual companies some flexibility, will tighten its emissions limits.

But while cap-and-trade has been effective to date[44], in part by generating billions of dollars for programs and incentives to reduce emissions, its role may change as energy efficiency improves and additional rules and regulations are put in place to replace fossil fuels.

One of the greatest controversies throughout the Scoping Plan process is its reliance on carbon capture and sequestration, or CCS. The controversy is rooted in concern that CCS[45] allows fossil fuel facilities to continue releasing pollution while only capturing the carbon dioxide emissions. These facilities are often in or near disadvantaged communities.

California’s chances of success

Will California make it? The state has a track record of exceeding its goals[46], but getting to net zero by 2045 requires a sharper downward trajectory than even California has seen before, and there are still many hurdles.

Environmental justice concerns about carbon capture and new industrial facilities, coupled with NIMBYism, could block many needed investments. And the possibility of sluggish economic growth could led to spending cuts[47] and might exacerbate concerns about economic disruption and affordability.

There are also questions about prices and geopolitics. Will the upturn in battery costs[48] in 2022 – due to geopolitical flare-ups, a lag in expanding the supply of critical materials, and the war in Ukraine – turn out to be a hiccup or a trend? Will electric utilities move fast enough in building the infrastructure and grid capacity needed to accommodate the projected growth in zero-emission cars and trucks?

It is encouraging that the state has already created just about all the needed policy infrastructure. Additional tightening of emissions limits and targets will be needed, but the framework and policy mechanisms are largely in place.

Rajinder Sahota, deputy executive officer of the California Air Resources Board, contributed to this article.

References

  1. ^ new climate plan (ww2.arb.ca.gov)
  2. ^ prohibited batteries (www.sfchronicle.com)
  3. ^ large-scale solar and wind facilities (www.latimes.com)
  4. ^ longtime board member (scholar.google.com)
  5. ^ Rajinder Sahota (ww2.arb.ca.gov)
  6. ^ the rest of the world (about.bnef.com)
  7. ^ world’s fourth-largest economy (www.bloomberg.com)
  8. ^ zero-emission requirements (ww2.arb.ca.gov)
  9. ^ cars (www.forbes.com)
  10. ^ trucks (theconversation.com)
  11. ^ buses (ww2.arb.ca.gov)
  12. ^ most ambitious (www.forbes.com)
  13. ^ low-carbon fuel requirements (dx.doi.org)
  14. ^ carbon cap-and-trade programs (www.c2es.org)
  15. ^ peculiarities in national air pollution law (eelp.law.harvard.edu)
  16. ^ other states (ww2.arb.ca.gov)
  17. ^ less than 1% (ww2.arb.ca.gov)
  18. ^ Scoping Plan (ww2.arb.ca.gov)
  19. ^ capturing carbon (ww2.arb.ca.gov)
  20. ^ hydrogen power (www.greentechmedia.com)
  21. ^ about half (www.energy.ca.gov)
  22. ^ transit buses by 2029 (ww2.arb.ca.gov)
  23. ^ truck sales (calmatters.org)
  24. ^ sales by 2035 (ww2.arb.ca.gov)
  25. ^ Low Carbon Fuel Standard (www.forbes.com)
  26. ^ Brittany Murray/MediaNews Group/Long Beach Press-Telegram via Getty Images (www.gettyimages.com)
  27. ^ battery costs (www.energy-storage.news)
  28. ^ charging infrastructure (www.energy.ca.gov)
  29. ^ only strategies (onlinepubs.trb.org)
  30. ^ shared-ride automated vehicles (escholarship.org)
  31. ^ affordability for low-income commuters (escholarship.org)
  32. ^ total electricity production (www.energy.ca.gov)
  33. ^ requirements in place (www.energy.ca.gov)
  34. ^ Watchara Phomicinda/MediaNews Group/The Press-Enterprise via Getty Images (www.gettyimages.com)
  35. ^ electricity (trackbill.com)
  36. ^ zero emissions by 2045 (www.energy.ca.gov)
  37. ^ 52% in 2021 (www.energy.ca.gov)
  38. ^ first Pacific sites for offshore wind (theconversation.com)
  39. ^ large solar farms (ww2.energy.ca.gov)
  40. ^ significantly scale back (www.cpuc.ca.gov)
  41. ^ generous rooftop solar reimbursements (haas.berkeley.edu)
  42. ^ higher electricity bills (haas.berkeley.edu)
  43. ^ cap-and-trade program (ww2.arb.ca.gov)
  44. ^ effective to date (energyathaas.wordpress.com)
  45. ^ concern that CCS (biologicaldiversity.org)
  46. ^ exceeding its goals (www.latimes.com)
  47. ^ could led to spending cuts (calmatters.org)
  48. ^ upturn in battery costs (www.energy-storage.news)

Read more https://theconversation.com/how-californias-ambitious-new-climate-plan-could-help-speed-energy-transformation-around-the-world-197094

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