Minelands and Power Plants: Promising Sites for Renewable Development in Michigan

Transitioning from Coal to Renewable Energy: Repurposing Former Coal Plant Sites for Renewable Development

Transitioning from Coal to Renewable Energy: Repurposing Former Coal Plant Sites for Renewable Development

Petersburg Generating Station: A Changing Era

AES Indiana’s Petersburg Generating Station, located in Petersburg, Indiana, has been a coal-powered plant since the late 1960s. However, this era is coming to an end. Two of the plant’s four coal-burning units have already retired and the last one is scheduled to shut down in 2025. This transition will make AES Indiana the first utility in the state to completely phase out coal. Despite this change, power generation will continue at the facility.

Switching to Cleaner Energy Sources

In order to transition to cleaner energy sources, two of the coal units at the Petersburg Generating Station will be replaced with natural gas. Additionally, AES Indiana is constructing an 800 megawatt-hour battery storage array at the plant. This battery storage array will allow the company to take advantage of existing grid connections and meet its electric capacity obligations. It will store excess power during times of low demand and discharge it when demand increases and the regional grid operator, the Midcontinent Independent System Operator (MISO), requires additional electricity.

AES Indiana’s Battery Storage Array: A “Time Machine”

Aaron Cooper, the Chief Commercial Officer for U.S. utilities at AES Indiana, describes the battery storage array as a “time machine.” This innovative technology was chosen after a thorough review of customer and grid obligations, considering factors such as the new winter rules set by MISO, available generation technologies, and new tax rules for renewables. AES Indiana believes that batteries are the ideal solution to meet their long-term goals efficiently and effectively.

Repurposing Former Coal Plant Sites

AES Indiana is not alone in repurposing former coal plant sites for renewable development. Many other factors, such as resistance to new greenfield projects and long queues for connecting new power projects to the grid, make these sites attractive for renewable energy development. Similar conversions are taking place in New Jersey, Nevada, Louisiana, and other states across the country. Justin Tomljanovic, a Vice President of Corporate Development at Xcel Energy, states that reusing these interconnections is crucial in reducing the cost of replacement generation.

The Role of States in Driving the Transition

States have a significant role in accelerating these transitions. Renewable energy and decarbonization mandates are already driving the switch to cleaner electricity in 23 states. Additionally, legislation such as “securitization” can help mitigate the costs of retiring coal plants early. Illinois, for example, has a grant program specifically designed to incentivize retiring coal plants to install energy storage. The Inflation Reduction Act includes tax credits for “energy communities,” defined as sites with a history of coal production or closure of coal power stations or mines. These actions aim to promote economic opportunities and job creation in communities affected by the decline of the coal industry.

Unlocking the Potential of Mine Lands and Brownfields

Former mine lands and other previously disturbed areas are becoming preferred sites for renewable energy projects. These sites are often less controversial and provide opportunities for investment in communities that were once reliant on coal mining. Developers like Sun Tribe Solar and Sol Systems are partnering with organizations like The Nature Conservancy to build solar projects on former coal mine lands in Virginia, Tennessee, and Kentucky. The Nature Conservancy is also exploring the potential of degraded lands like mining sites, landfills, and brownfields for strategic renewable development.


The transition from coal to renewable energy is a complex process that requires innovative solutions. Repurposing former coal plant sites for renewable development is a promising strategy that not only helps meet clean energy goals but also brings economic opportunities to communities affected by the decline of the coal industry. With the support of states, utilities, and organizations, we can drive this transition forward and create a sustainable future.

Read More of this Story at michiganadvance.com – 2023-12-31 08:56:38

Read More US Economic News

Leave A Reply

Your email address will not be published.