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Abandoned Mines Hold Potential to Capture Wind Energy

By Guest PostDecember 19, 2011Environmentabandoned open pit mines, al rudeck, don fosnacht, electricity demand, energy providers, Europe, great river energy, iron range, minnesota, minnesota power, power supply, pump water, pumped hydro storage, pumped hydro storage process, renewable energy sources, renewable energy technology, reservoirs, rick lancaster, university of minnesota, wind, wind energy

MINNEAPOLIS / ST. PAUL — Minnesota’s Iron Range is pocked with ponds – abandoned open pit mines – that could help energy providers more efficiently use intermittent renewable energy sources, such as wind, to meet state renewable energy mandates. A study released Friday by the University of Minnesota Duluth’s Natural Resources Research Institute shows that the water-laden pits have the potential to store wind energy using a process developed in Europe in the late 1800s.

The pumped-hydro storage process would use excess late-night wind energy to pump water uphill from the pits to a higher-elevation holding pond. Then, when electricity demand goes up during the day, the process reverses the flow and captures the energy in hydro turbines. For every 100 megawatts used to pump the water upward, the plant generates nearly 80 megawatts through the turbines. (more…)

Are You Alarmed or Dismissive? Americans’ Latest Views on Climate Change Fall Into One of ‘Six Americas’

By Guest PostJuly 1, 2011Environmentalarmed and concerned, americans, anthony leiserowitz, climate and energy policies, climate change, dismissive, doubtful, global warming, renewable energy sources, research, six americas, solar power, united states, wind, yale project on climate change communication, yale university project on climate change communication

In a new report, researchers have found that Americans have a wide range of attitudes and beliefs when it comes to climate change, yet also show some surprising similarities. The report, which is the latest in a series from the Yale University Project on Climate Change Communication, demonstrates how Americans fall into one of six categories called the “Global Warming’s Six Americas,” each reflecting different attitudes and behaviors when it comes to climate change. (more…)

Aggressive Efficiency and Electrification Needed to Cut California Emissions

By Guest PostMay 27, 2011Environmentbehavioral changes, berkeley lab, california, california energy future¬¬, carbon capture and sequestration, CCS, demand for energy, domestic cooking, electrification, energy future, Europe, greenhouse gas emissions, jeff greenblatt, jim mcmahon, max wie, nobel prizes, nuclear energy, population, renewable, renewable energy sources, scientific innovation, university of california, water heating

*Berkeley Lab joint report offers a variety of scenarios to reduce emissions to 80% below 1990 levels.*

Berkeley, CA — In the next 40 years, California’s population is expected to surge from 37 million to 55 million and the demand for energy is expected to double. Given those daunting numbers, can California really reduce its greenhouse gas emissions to 80 percent below 1990 levels by 2050, as required by an executive order? Scientists from Lawrence Berkeley National Laboratory who co-wrote a new report on California’s energy future are optimistic that the target can be achieved, though not without bold policy and behavioral changes as well as some scientific innovation.

The report, titled “California’s Energy Future—The View to 2050,” draws a series of energy system “portraits” showing how California can meet its ambitious emissions targets using a combination of measures and energy sources that may include electrification, enhanced efficiency, nuclear energy, renewable energy sources, grid modernization, and carbon capture and sequestration (CCS). (more…)

Tag Archives: renewable energy sources

Abandoned Mines Hold Potential to Capture Wind Energy

Are You Alarmed or Dismissive? Americans’ Latest Views on Climate Change Fall Into One of ‘Six Americas’

Aggressive Efficiency and Electrification Needed to Cut California Emissions