Alternative Energy
Repurposing Former Power Plants for Renewable Energy Production
Former power plant sites are ideal candidates for renewable energy production, such as solar, wind, and battery storage.
Alternative energy reuse also aligns well with New York State’s clean energy goals , as well as with the growing number of state and federal programs and funding sources that are advancing a clean energy future.
Advantages for Utilizing Power Plant Sites for Alternative Energy Production
- Existing electrical infrastructure: Former power plant sites have all the existing infrastructure to put electricity on the grid. Re-using power lines, transformers, and other equipment can be a huge cost-savings for renewable energy projects.
- Industrial land use: Communities often object to renewable energy projects like wind or solar farms on undeveloped land. Converting an existing industrial site, like a former power plant, to renewable energy may be easier.
- Size: Power plant sites typically sit on sizeable parcels of land, which is a good fit for renewable energy projects that often require lots of space. Redeveloping these sites is also a good way to make productive use of a property that might otherwise go unused.
- Cost: It’s now cheaper to build new renewable energy than it is to keep old power plants running. Additionally, there are many funding sources available for renewable energy production.
Alternative Energy Case Study: Brayton Point Power Station
The site of the last coal power plant in Massachusetts (which was shuttered in 2017) will be converted into an offshore wind manufacturing facility. Undersea transmission lines will connect the offshore wind turbines in Mount Hope Bay to the existing grid connections at the plant site. The facility will generate 1,200 MW of electricity. The project is expected to cost $200 million.
Renewable Energy Options
Former power plant sites are ideal candidates for renewable energy production, such as solar, wind, and battery storage.
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Solar
A solar farm is a large collection of photovoltaic (PV) solar panels that absorb energy from the sun, convert it to electricity, and send that electricity to the grid for distribution to customers.
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Wind
Wind farms harness electricity from wind energy by using turbines to drive generators. Wind farms can be located either onshore or offshore.
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Battery Storage
Battery energy storage systems store energy from renewables, like solar and wind, using a group of batteries and release it to customers when needed.
Other Considerations for Renewables
Power Production: In most cases, renewables aren’t a one-for-one replacement for fossil-fuel power plants because they take up more space to produce the same amount of power. For example, a 3,500-acre solar farm in Minnesota will only replace one-fifth of the power of the coal plant being retired there. Advancements in renewables and emerging technologies like geothermal are likely to overcome this issue in the future.
Intermittent Sources: Both wind and solar are intermittent sources of energy. That makes battery storage an important part of the renewable energy process. When the sun isn’t shining or the wind isn’t blowing, energy stored in the batteries can be released to customers. Combining solar and wind farms on the same site can also be a good way to diversify energy sources so that energy production potential is maximized.
Workforce Development: Renewable energy projects can’t necessarily replace old fossil-fuel power plant jobs on their own. Constructing a new project can create hundreds of temporary jobs but running a solar farm or wind farm, for example, requires far less on-going work than a coal plant. That’s why it’s important to create a workforce development plan that goes beyond energy jobs.
Emerging Alternative Energy Technologies
Ongoing research and development are leading to advancements and emerging technologies that are revolutionizing renewable energy production and making it cheaper, more efficient, and carbon-free.
Emerging Technologies Case Study: Petra Nova
With funding from the U.S. Department of Energy (DOE), NRG and its partners developed a carbon capture facility at the coal-powered Petra Nova plant that was able to capture 92.4% of the carbon dioxide out-put by the power plant.
Learn More
Additional Alternative Energy Resources
- Repowering a Shuttered Plant: A Feasible Alternative for Decommissioning
(Power Engineering, 2015)
- Five Reasons Why Power Plant Owners Should Consider Repurposing Their Assets
(POWER Mag, 2023)
- New Life for Dead and Dying Coal Plants?
(POWER Mag, 2022)
- A Comprehensive Approach to Repurposing Retired Coal Power Plant Sites: Transforming Liabilities to Assets
(Electric Power Research Institute, Inc., 2019)
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