Renewables alone won’t satisfy California’s clean energy ambitions

At-a-Glance:

Carbon capture and storage (CCS) would provide California with 15 percent of the emissions reductions necessary to meet its goal of a carbon-neutral economy in 2045, and it would save the state $750 million in costs for solar generation and grid-scale batteries, according to a new study. The report was released in October by the non-profit Energy Futures Initiative (EFI) and Stanford University. According to the report, 20 million tons of carbon dioxide emitted by 76 large industrial and power-generating emitters in California, could be extracted and stored underground at a profit. To learn more, read “Renewables alone won’t satisfy California’s clean energy ambitions.”

Key Takeaways:

  • Clean firm power available whenever needed and most likely to come from natural gas, is necessary to smooth out the peaks and valleys that are inherent to wind, solar, and hydroelectric generation, according to EFI.
  • Transportation accounts for 40 percent of California’s greenhouse gas emissions. The need for clean firm power will surge in concert with the growth of electric vehicles as the state moves to phase out gasoline-fueled cars by 2035.
  • Industry in California is a larger source of emissions than the power sector today, and it has few options available to reduce CO2 apart from CCS. Cement production, for example, requires high temperatures, but only 40 percent of its emissions are from combustion; a larger fraction is process related.
  • A federal tax credit known as 45Q offers $22 per ton of CO2 that is captured and used for enhanced oil recovery or other end uses, increasing to $35 in 2026 and adjusted for inflation thereafter. The credit is $34 per ton, increasing to $50, for CO2 that is captured and injected to geologic storage.
  • The research found that ethanol plants, hydrogen producers, and refineries in the state could capture and store CO2 profitably with existing incentives.

Path to 100% Perspective:

The record breaking heat wave that swept across the western part of the country and caused a series of blackouts in the Golden State this summer, offered additional modelling opportunities to demonstrate the most effective mix of energy to accommodate any extreme weather situation and meet clean power mandates. The big challenge facing California and the rest of the world is how to integrate renewables into the grid while building security of supply and a sustainable power system with an affordable plan for everyone involved. The “Optimal Path“ includes using power-to-gas (PtG) along with existing and future renewable energy.

 

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Why ‘Carbon Neutral’ Is the New Climate Change Mantra

At-a-Glance:

Becoming carbon neutral — also known as climate-neutral or net zero — is now a legal requirement in some countries, while European authorities are adopting legislation to become the first net zero continent. Even oil companies are getting in on the act. Buildings, airlines and events have also made the pledge, while investments groups managing almost $5 trillion of assets have committed to having carbon-neutral portfolios by 2050.To learn more, read Why ‘Carbon Neutral’ Is the New Climate Change Mantra.” Reading this article may require a subscription.

Key Takeaways:

  • What is carbon neutral? It means cutting emissions to the very limit and compensating for what can’t be eliminated.
  • What are carbon offset credits? Developed by the United Nations and non-profit groups, these let the buyers emit a specified amount of greenhouse gas, which is offset by using the money raised to fund carbon-reduction projects such as reforestation.
  • Who’s trying to be carbon neutral? Dozens of countries have committed to go net zero, or at least outperform carbon-reduction targets set out in the landmark 2015 Paris Agreement on climate change.
  • What’s driving this? CO2 pollution is still rising — 2019 was another record — and is unlikely to peak before 2040, driven by growing use of fossil fuels, says the International Energy Agency.
  • How will the goals be reached? To get anywhere close to net zero by 2050, the world must invest $2.4 trillion in clean energy every year through 2035, according to the UN’s Intergovernmental Panel on Climate Change. Much will ride on technologies that on the grand scale required are as yet unproven, including carbon capture, using hydrogen as fuel and removing carbon dioxide from the atmosphere.

Path to 100% Perspective:

Understanding the evolving terminology is useful, but embracing a plan that is possible, practical and affordable will combine knowledge with measurable results. As organizations add renewable energy to their net zero goals, it is important to develop a power system with flexibility, reliability and sustainability in mind. Renewable energy can actually generate renewable fuels that can be used to create a sustainable grid with a path to faster decarbonization.

 

Photo by Science in HD on Unsplash