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 January 27, 2016 - 6:17 PM EST
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New Renewable Energy Study Results from Columbia University Described (A stochastic model for a macroscale hybrid renewable energy system)

By a News Reporter-Staff News Editor at Energy Weekly News -- New research on Renewable Energy is the subject of a report. According to news reporting out of

New York City
New York
, by VerticalNews editors, research stated, "The current supply for electricity generation mostly relies on fossil fuels, which are finite and pose a great threat to the environment. Therefore, energy models that involve clean and renewable energy sources are necessary to ease the concerns about the electricity generation needed to meet the projected demand."

Our news journalists obtained a quote from the research from Columbia University, "Here, we mathematically model a hybrid energy generation and allocation system where the intermittent solar generation is supported by conventional hydropower stations and diesel generation and time variability of the sources are balanced using the water stored in the reservoirs. We develop a two-stage stochastic model to capture the effect of streamflows which present significant inter-annual variability and uncertainty. Using sample case studies from

, we determine the required hydropower generation capacity and storage along with the minimal diesel usage to support 1 GW(peak) solar power generation. We compare isolated systems with the connected systems (through inter-regional transmission) to see the effects of geographic diversity on the infrastructure sizing and quantify the benefits of resource-sharing. We develop the optimal sizing relationship between solar and hydropower generation capacities given realistic cost parameters and real data and examine how this relationship would differ as the contribution of diesel is reduced."

According to the news editors, the research concluded: "We also show that if the output of the solar power stations can be controlled (i.e. spill is allowed in our setting), operating them below their maximum energy generation levels may reduce the unit cost of the system."

For more information on this research see: A stochastic model for a macroscale hybrid renewable energy system. Renewable & Sustainable Energy Reviews, 2016;54():688-703. Renewable & Sustainable Energy Reviews can be contacted at: Pergamon-Elsevier Science Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB,

. (Elsevier -; Renewable & Sustainable Energy Reviews -

Our news journalists report that additional information may be obtained by contacting A.S. Kocaman, Columbia University, Earth Inst,

New York, NY
United States
. Additional authors for this research include C. Abad, T.J. Troy, W.T. Huh and V. Modi.

Keywords for this news article include: Oil & Gas, Hydropower, Electronics, Solar Power,

New York City
United States
, Renewable Energy, Energy Generation, Electricity Generation, North and
Central America

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Source: News (January 27, 2016 - 6:17 PM EST)

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