Floating Power Plants Are Opening a New Energy Frontier

The renewable revolution is running out of space. Utility-scale solar and wind farms take up enormous tracts of land and are facing increasing legal pushback from many of the communities where their development is planned. However, an enormous expansion of clean energy resources is still needed to stay on track with any feasible pathway toward keeping global warming within 1.5º Celsius of pre-industrial averages – the threshold to avoid the very worst impacts of climate change. Moreover, the expansion of renewable energies is becoming more and more critical to global energy security as energy independence becomes the order of the hour. Against this backdrop, low-emissions energy production technologies that don’t take up a lot of space on land are garnering increasing investment attention for their potential to fill a void in the market. Many of these emerging technologies still take up space, but they’re moving off land and into the water in search of new frontiers. These floating power plants could become essential lifelines for coastal cities, and especially ‘population hotspots’, that need to expand their clean energy generation capacity but face increasing competition over scarce land. “Floating power plants can offer a permanent supply of energy, including for whole cities such as Pevek in Russia and Luanda in Angola,” The Conversation wrote in a report published earlier this week. “They can also provide temporary power for specific activities such as mining, or during emergencies including natural disasters or when infrastructure fails,” the article went on to say.These floating power plants can come in different forms. As explained by The Conversation, they can be on ships, such as the very first floating power plant, the cargo ship SS Jacona, which was converted into a power source for the Northeast Coast of the United States way back in 1931. Or, they can be on barges, which – unlike ships – lack a motor. Or, they can simply consist of floating arrays or buoys which are fixed and non-transportable. Moreover, the way that these power plants can generate energy is extremely diverse, ranging from tidal and wave energy to solar photovoltaics to floating nuclear power plants. A number of prototypes are currently being tested in waters around the world. In Taiwan, where establishing energy independence is not just a matter of energy security but of national security as China attempts to annex the island, floating solar panels could offer an invaluable lifeline for the populous and land-scarce isle. A recent study found that these floating solar farms could be even more productive than land-based solar thanks to the natural cooling effects of the seawater, which increased the system’s efficiency.“From a broader perspective, our work shows that offshore floating solar is not just a technical alternative but a strategic solution for other countries with limited land resources that can help expand their renewable energy capacity while still meeting environmental and land-use constraints,” one of the study authors elaborated in a press release accompanying the study.These models aren’t just relevant to populous coastal cities, but also to remote regions that face challenges to connect to the grid. Russia has been operating floating nuclear power plants since 2019 in order to provide power to remote populations in Siberia. And communities in the Mediterranean, Norway, Japan, and India could be next. On Beaver Island, in the United States’ Lake Michigan, the University of Michigan is testing prototype devices along the island’s shoreline to convert kinetic energy from waves into electricity for the island’s small and isolated population. “It’s a combination of looking at cost savings and also wanting to be independent and not dependent on the mainland for everything,” Seamus Norgaard, who lives on Beaver Island during the summer, told Grist for an article about the University of Michigan project published earlier this month. “And then also the environmental outlook,” he went on to say.While these technologies won’t replace traditional models, they could provide essential resilience and diversity to the global energy mix at a time when both are sorely needed. In the context of climate change and extreme global geopolitical instability leading to energy market volatility, short and local energy supply chains that don’t carry a large carbon footprint or land footprint are more essential than ever. By Haley Zaremba for Oilprice.com More Top Reads From Oilprice.comUN Says Global Fuel Subsidies Could Top $1 TrillionBrent Holds Above $102 as Gulf Export Rebound Offsets U.S. Military MovesWTI Sinks Nearly 4% as EU Weighs Emergency Stockpile Release