The best of EcoWatch, right in your inbox. Sign up for our email newsletter!
New Research Confirms Wind Energy Decreases Emissions and Electricity Costs
By Michael Goggin
New research released by an independent grid operator confirms that wind energy is drastically decreasing both the price of electricity and emissions of harmful pollutants. The study was led by PJM, the independent grid operator for all or parts of 13 Mid-Atlantic and Great Lakes states (Delaware, Illinois, Indiana, Kentucky, Maryland, Michigan, New Jersey, North Carolina, Ohio, Pennsylvania, Tennessee, Virginia, and West Virginia) and DC. The results are posted here.
PJM, the independent grid operator for all or parts of 13 states, released a study this week showing that wind energy is decreasing electricity costs and emissions. Photo courtesy of Shutterstock
Highlights of the study:
- Wind energy produces massive reductions in electricity production costs and wholesale prices. Obtaining 20 percent of PJM’s electricity from wind energy reduces the cost of producing electricity by $9 billion annually (about 25 percent of overall production costs of $37 billion), while 30 percent wind reduces production costs by $13 billion (about 35 percent) each year. Wholesale electricity prices are reduced by $9-21 billion annually across the 20 percent and 30 scenarios.
- Wind energy drastically reduces pollution. The 20 percent wind case reduced fuel use and carbon pollution by 18 percent more than the 2 percent wind base case, while 30 percent wind reduced fuel use and carbon emissions by more than 29 percent relative to the 2 percent wind base case. The 20 percent wind case reduced annual carbon pollution by around 80 million tons, while the 30 percent wind cases reduced pollution by around 140-200 million tons annually. These results include detailed modeling of how changing the output of fossil-fired power plants affects their emissions and efficiency. Even at high levels of wind energy, this power plant "cycling" has no significant negative impact on the efficiency or emissions of fossil-fired power plants, further confirming the results of a study released last month showing that such cycling only reduces the CO2 benefits of wind by 0.2 percent.
- The study found that obtaining 30 percent of electricity from renewable energy would cause no reliability problems, noting that “all the simulations of challenging days revealed successful operation of the PJM real-time market.” This confirms the results of dozens of other wind integration studies and independent grid operator analyses of real-world wind operations data. As PJM’s Senior Vice President Andy Ott and other experts explain in this video, changes in wind energy output are reliably accommodated using the same tools grid operators have always used to accommodate fluctuations in electricity demand as well as abrupt failures at conventional power plants.
- The PJM study also found that the grid upgrades needed to accommodate additional wind energy would have a reasonable cost, accounting for only 6 to 8 percent of the value provided by wind energy in nearly all scenarios. Importantly, other studies by independent grid operators have confirmed that these grid upgrades would more than pay for themselves by providing other benefits, such as improved electric reliability, reduced electricity prices, more competitive electricity markets, and higher efficiency of electricity transmission relative to today’s congested electric grid.
EcoWatch Daily Newsletter
Respecting scientists has never been a priority for the Trump Administration. Now, a new investigation from The Guardian revealed that Department of the Interior political appointees sought to play up carbon emissions from California's wildfires while hiding emissions from fossil fuels as a way to encourage more logging in the national forests controlled by the Interior department.
Killer hurricanes, devastating wildfires, melting glaciers, and sunny-day flooding in more and more coastal areas around the world have birthed a fatalistic view cleverly dubbed by Mary Annaïse Heglar of the Natural Resources Defense Council as "de-nihilism." One manifestation: An increasing number of people appear to have grown doubtful about the possibility of staving-off climate disaster. However, a new interactive tool from a climate think tank and MIT Sloan shows that humanity could still meet the goals of the Paris agreement and limit global warming.
Burrowing owls, which make their homes in small holes in the ground, are having a rough time in Florida. That's why Marco Island on the Gulf Coast passed a resolution to pay residents $250 to start an owl burrow in their front yard, as the Marco Eagle reported.
Hundreds of Amazon workers publicly criticized the company's climate policies Sunday, showing open defiance of the company following its threats earlier this month to fire workers who speak out on climate change.
East Africa is facing its worst locust infestation in decades, and the climate crisis is partly to blame.