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04/04/2012

Replacing Coal with Renewable Energy

 
Replacing coal with renewable energy could have considerable benefits.

One possible scenario for the electricity system in the Western US in 2026-29. Pie charts show the proportion of different types of energy sources generating power and flowing between load areas if there were a carbon tax of $70 per ton. According to the SWITCH model, such a tax could allow the West to reach a goal of 54% of 1990 emissions by 2030. Credit: Daniel Kammen lab, UC Berkeley

According to a new study by University of California, Berkeley the least expensive way for the Western U.S. to reduce greenhouse gas emissions enough to help prevent the worst consequences of global warming is to replace coal with renewable and other sources of energy that may include nuclear power.

The experts reached this conclusion using SWITCH, a highly detailed computer model of the electric power grid, to study generation, transmission and storage options for the states west of the Kansas/Colorado border. The model will be an important tool for utilities and government planners.

"Decarbonization of the electric power sector is critical to achieving greenhouse gas reductions that are needed for a sustainable future," says Daniel Kammen, Distinguished Professor of Energy in UC Berkeley's Energy and Resources Group. "To meet these carbon goals, coal has to go away from the region."

While some previous studies have emphasized the high cost of carbon taxes or caps, the new study shows that replacing coal with more gas generation, as well as renewable sources like wind, solar and geothermal energy, would result in only a moderate increase to consumers in the cost of electric power – at most, 20%. They estimate a lower ratepayer cost, Kammen said, because the evolution of the electrical grid over the next 20 years – with coordinated construction of new power plants and transmission lines – would substantially reduce the actual consumer cost of meeting carbon emission targets.

Burning coal, a non-renewable resource, produces around 20%  of the world's greenhouse gases, but also releases harmful chemicals into the environment such as mercury, sulfur dioxide, nitrogen oxides and sulfuric acid, responsible in some areas for acid rain and respiratory illness.

California has few coal-fired power plants, but gets about 20% of its electricity from coal-burning plants in neighboring states. About 46% of the state's power comes from gas-burning plants, 11% from hydroelectric, 14% from nuclear and 11% from other renewables: geothermal energy, wind and solar.

The study, published in the April issue of the journal Energy Policy, highlights an analysis using the SWITCH electricity planning model. SWITCH, which stands for Solar, Wind, Hydro and Conventional generation and Transmission Investment, uses unprecedented detail that includes generation, transmission and storage of electricity. The model was developed by Matthias Fripp to study California's renewable energy options while he was a Ph.D. student at UC Berkeley. Kammen and his group extended the model's capabilities and used it to study Western North America.

"We use the SWITCH model to identify low-carbon supply options for the West, and to see how intermittent generation may be deployed in the future," says first author James Nelson, a UC Berkeley graduate student. "We show that it is possible to reach our goals of reducing carbon emissions using many possible mixes of power, whether natural gas, nuclear, solar, wind, biomass or geothermal."

"Models like this are eagerly anticipated by many of the agencies involved in planning," Kammen said, noting that SWITCH is a power-system model that can be fine-tuned for many different types of studies.

 


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Wood construction is both cost and energy efficient. Check out Morton Buildings and our designBUILD team online today to discover all the benefits of post-frame construction.


When choosing a metal-clad building for your next construction project, consider Morton Buildings, Inc., and their designBUILD team, we’ll make your dream a reality.

We Can Help You Reduce Energy by 30%

Our mission is to help our customers manage their buildings' energy costs, improve reliability, and enhance performance while having a positive impact on the environment.
CLICK HERE to find out how.

 

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Tennant Company is a recognized leader in designing, manufacturing and marketing solutions that help create a cleaner, safer, healthier world. With thousands of satisfied customers already using award winning ec-H2O technology, why not see what you're missing? Test ec-H2O on your soils in your facility. Get a free demo.

 

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Bluebeam® Revu® simplifies digital facilities document management from design review to leveraging as-builts, maintenance manuals and O&Ms submittals.


Visit our website today to learn about the design flexibility of a Morton building and the endless possibilities of partnering with our designBUILD team.


Wood construction is both cost and energy efficient. Check out Morton Buildings and our designBUILD team online today to discover all the benefits of post-frame construction.


When choosing a metal-clad building for your next construction project, consider Morton Buildings, Inc., and their designBUILD team, we’ll make your dream a reality.

We Can Help You Reduce Energy by 30%

Our mission is to help our customers manage their buildings' energy costs, improve reliability, and enhance performance while having a positive impact on the environment.
CLICK HERE to find out how.

 

Add highly responsive multi-zone comfort to any building project, in any climate. Our CITY MULTI H2i R2- and Y-Series VRF systems give you flexibility to fit the needs of any building. Enjoy 100% heating capacity at 0°F outdoor ambient, and 85% heating capacity at -13°F outdoor ambient.  For more information, log on to www.mitsubishipro.com

 


Tennant Company is a recognized leader in designing, manufacturing and marketing solutions that help create a cleaner, safer, healthier world. With thousands of satisfied customers already using award winning ec-H2O technology, why not see what you're missing? Test ec-H2O on your soils in your facility. Get a free demo.


Tennant Company is a recognized leader in designing, manufacturing and marketing solutions that help create a cleaner, safer, healthier world. With thousands of satisfied customers already using award winning ec-H2O technology, why not see what you're missing? Test ec-H2O on your soils in your facility. Get a free demo.

 

Replace core drilling with Connectrac In-Carpet and On-Floor Wireways, the proven connectivity solution in open interior spaces of all kinds. These elegant low-profile wireways are great for AV / telecom connectivity wherever it’s needed.

Bluebeam® Revu® simplifies digital facilities document management from design review to leveraging as-builts, maintenance manuals and O&Ms submittals.


 
10/01/2014

Photovoltaic installations serve nearly 2.7 million students

09/30/2014

Incidence of fires and property loss down from 2012

09/29/2014

Academic achievement tied to responsible reporting habits

09/26/2014

Survey shows people more careful, less satisfied in public washrooms.

09/25/2014

A new study shows that switching natural gas for coal will not significantly reduce the amount of CO2 emissions being produced. 

09/24/2014

A new study shows the carbon emission reduction policies individual states have adopted are yielding results.

09/23/2014

A recent survey of industry professionals indicates that investment in energy efficiency projects will increase over the next year.

09/22/2014

Fort Carson in Colorado is well on its way to reaching the goal of net-zero energy by 2020. 

09/19/2014

New regulations from the DOE would improve commercial air conditioner efficiency by as much as 30%. 

09/18/2014

A new study suggests that the installed cost of photovoltaic solar power continues to drop in the U.S.

09/17/2014

A new technology developed at Rice University effectively deices glass surfaces while remaining transparent for radio frequency transmission.

09/16/2014

The USGBC and American Chemistry Council have put aside their differences to work together on new improvements to the LEED certification system. 

09/15/2014

Researchers have developed a new process to help cloud computing systems use less energy while continuing to provide high levels of data services.

09/12/2014

Researchers have found the main factors that influence the amount and type of building damage caused by various types of salts. 

09/11/2014

A new study has demonstrated that proactive ergonomic training can decrease worker discomfort and increase productivity. 

09/10/2014

The University of Utah has upgraded its historic Dumke Health Professions Education building to save an impressive 40% on energy costs.

09/09/2014

Hoping to build on LEED's success, PEER evaulates the performance and modernization of electric grids. 

09/08/2014

The USGBC has developed a new tool to help streamline the LEED certification process. 

09/05/2014

Researchers have developed a fluorescent lamp that emits Wi-Fi signals to allow connectivity throughout buildings.

09/04/2014

Tests show effective measures for reducing earthquake damage to computer servers. 

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