Feb 22, 2014

Geothermal potential in California untapped

Admin
2 min
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The leading geothermal industry group, Geothermal Energy Association, has issued a status report on the state’s geothermal resources that says they are still largely untapped just as the California Air Resources Board is examining their new scoping plan for implementing the state’s climate law.

Geothermal power is “a viable, cost effective, and plentiful renewable energy option to meet California’s climate goals,” GEA told CARB. Utilizing the Golden State’s geothermal resources can help achieve “carbon reductions with the least total cost and highest power system reliability,” GEA reports.

In brief, the status report shows that:

– Geothermal power generated 4.4 percent of total system power in California in 2012, but could have generated substantially more;

– geothermal power produces some of the lowest life-cycle emissions when compared to almost every other energy technology and even some renewables;

– depending on the resource characteristics and plant design, geothermal power plants can be engineered to provide firm and/or flexible power;

– even with high upfront capital costs, geothermal power is a competitive renewable energy source;

– about half of California’s identified geothermal resources are still untapped, and significant resources may remain undiscovered;

– geothermal power is key to achieving an expanded renewable power portfolio at the lowest total cost;

– new technology will reduce geothermal power risks and can expand the supply curve to make more resources commercially available;

– the Salton Sea Known Geothermal Resource Area (SSKGRA) is considered by many to be the best opportunity for growth in California in the near term;

– distributed generation geothermal power and heating projects have potential in a number of areas, but are not eligible for the type of support provided other distributed generation projects;

– challenges to growth of utility scale plants include weak demand, inadequate transmission, permitting delays, and a lack of coordinated policies.

 The Geothermal Energy Association is a trade association comprised of U.S. companies that support the expanded use of geothermal energy and are developing geothermal resources worldwide for electrical power generation and direct-heat uses. 

Read more about geothermal:

Enhanced Geothermal Systems Powering Up

Top Ten: Geothermal Energy Locations

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Apr 23, 2021

Drax advances biomass strategy with Pinnacle acquisition

Drax
Biomass
Sustainability
BECCS
Dominic Ellis
2 min
Drax is advancing biomass following Pinnacle acquisition it reported in a trading update

Drax' recently completed acquisition of Pinnacle more than doubles its sustainable biomass production capacity and significantly reduces its cost of production, it reported in a trading update.

The Group’s enlarged supply chain will have access to 4.9 million tonnes of operational capacity from 2022. Of this total, 2.9 million tonnes are available for Drax’s self-supply requirements in 2022, which will rise to 3.4 million tonnes in 2027.

The £424 million acquisition of the Canadian biomass pellet producer supports Drax' ambition to be carbon negative by 2030, using bioenergy with carbon capture and storage (BECCS) and will make a "significant contribution" in the UK cutting emissions by 78% by 2035 (click here).

Drax CEO Will Gardiner said its Q1 performance had been "robust", supported by the sale of Drax Generation Enterprise, which holds four CCGT power stations, to VPI Generation.

This summer Drax will undertake maintenance on its CfD(2) biomass unit, including a high-pressure turbine upgrade to reduce maintenance costs and improve thermal efficiency, contributing to lower generation costs for Drax Power Station.

In March, Drax secured Capacity Market agreements for its hydro and pumped storage assets worth around £10 million for delivery October 2024-September 2025.

The limitations on BECCS are not technology but supply, with every gigatonne of CO2 stored per year requiring approximately 30-40 million hectares of BECCS feedstock, according to the Global CCS Institute. Nonetheless, BECCS should be seen as an essential complement to the required, wide-scale deployment of CCS to meet climate change targets, it concludes.

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