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D. The National Energy Modeling System

Narrator: This is Science Today. The Lawrence Berkeley National Laboratory has released a study suggesting that renewable energy and energy efficiency can help keep the nation's natural gas prices in check. Scientist Ryan Wiser, who led the study, says their work focused exclusively on the impact of renewable energy sources on natural gas prices and bills.

Wiser: Most of the analysis that has been shown that renewables have the potential to reduce natural gas prices have been based on a series of national energy models. And we have the capability to run one of those national energy models called the National Energy Modeling System, or NEMS.

Narrator: NEMS is the model used by the Department of Energy for national energy forecasts, often used as the default national governmental forecast for the nation's energy future.

Wiser: It forecasts how much energy is going to be used, natural gas, oil, electricity, coal. It forecasts the prices of those sources over time, it forecasts how much of which kinds of energy sources is going to be used.

Narrator: For Science Today, I'm Larissa Branin.