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Wood Mackenzie: Global floating solar to top 6 GW threshold by 2031

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The global floating solar market is expected to pass the 6 GW threshold by 2031, as photo-voltaic (PV) developers struggle to meet growing solar demand and look to alternate development technologies, according to Wood Mackenzie.

“The global solar industry, including PV developers, continue to battle limited land availability and increasing land costs for ground-mount solar projects, which is driving demand for floating installations,” said Ting Yu, Consultant at Wood Mackenzie, at SNEC PV Power Expo in Shanghai.

Floating solar is expected to have a steady market share compared to overall global solar demand, with the CAGR for floating solar expected to rise 15% in the next 10 years. 15 countries are forecasted to exceed 500 MW of cumulative floating solar installations by 2031, with Indonesia, India, and China making up almost 70% of the total floating solar demand in 2022.

“Despite development costs of floating solar’s ranging between 20 – 50% higher than comparable ground-mount projects, increased competitiveness in the developer and EPC landscape is helping to drive down costs in the sector,” Yu added.

The Asia-Pacific market had approximately 3 GW of floating solar projects in 2022, capturing over 90% of floating solar demand that year. Countries such as China, Indonesia, India, South Korea, and Thailand are developing multiple floating solar projects, according to Wood Mackenzie analysis.

In China, the floating solar project pipeline will grow at a steady pace going forward, with cumulative floating solar capacity to cross 13 GW by 2031 at a 12% CAGR over the next 10 years.

“China will continue to lead in floating solar installations. The country has been able to utilise flooded coal mines that have been decommissioned to develop floating solar,” continued Yu at SNEC.

With almost 150 MW, Europe is the second largest region for floating solar demand, with the Netherlands in the lead, followed by France. More countries are adopting the technology as multiple land use is being enforced in regions across Europe.

The Netherlands has the largest floating solar project outside the Asia-Pacific region, representing 32% of Europe’s FPV market in 2022, helped by the Sellingen floating solar park (41.4 MW) that came online in 2021. This reflects how project sizes are continually growing in Europe’s leading market.

“Although it is still a small market in Europe, the trend is positive, and bigger floating PV plants are expected in the near future. After 2025, slow growth is projected as the main spots would have already been developed at this point. In addition, grid constraints and higher LCOE for bigger plants means the technology is not competitive against rooftop PV,” Yu told delegates.

For the US, floating solar CAGR is estimated at roughly 13% over the next 10 years, where development is being driven in regions with high demand for solar but expensive land costs, including California, Florida, and New Jersey.

“Overall, the floating solar industry has seen high costs across all market segments, due to component costs and other soft cost increases, as a result of supply chain constraints in 2022. For instance, the rise in price for high-density poly ethelene (from the pandemic) was the main driver of high SBOS costs for floating solar. Although the cost is expected to be lower as the supply chain expands,” Yu concluded.



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