Offshore floating PV is driving Singapore’s path to carbon neutrality



SHENZHEN, China, July 7, 2021 / PRNewswire / – The solar energy market is heating up around the world, and more and more countries are joining the Race to Zero, a global campaign to seek leadership and support for businesses, cities, regions, [and] Investors for a Healthy, Resilient, Carbon-Free Recovery, “to quote the United Nations directly. This is a concerted, global effort to combat climate change. Singapore, a small and resource-scarce city-state, is no exception, and the island is now home to one of the world’s largest floating offshore photovoltaic (PV) farms, a 5 MW peak project in the Strait of Johor.

Developed by the Sunseap Group, a provider of solar energy solutions in Singapore, the five-hectare ocean-based solar system is the size of five soccer fields. With 13,312 solar panels, 40 inverters and more than 30,000 floats, it is estimated to produce up to 6,022,500 kWh of energy per year, provide enough electricity for 1,250 social housing with four rooms on the island and offset an estimated 4,258 tons of carbon dioxide.

Solar PV: A Natural Next Step For Singapore fight climate change

In 2021 the Singapore Government announced the Singapore Green Plan 2030. This nationwide initiative to promote Singapore The National Sustainable Development Agenda followed its 2020 announcement that Singapore The aim is to halve its maximum greenhouse gas emissions by 2050. The vision is to achieve net zero emissions by 2050, but this can only be achieved if the country significantly reduces its dependence on fossil fuels. Hence, finding alternative methods of generating electricity is imperative as natural gas accounts for 97% of electricity generation in. responsible for Singapore.

Limited by its small size, Singapore no access to natural and renewable energy sources such as wind and water power. However, almost on the equator, Singapore records a high average annual solar radiation. Simply put, it gets a lot of sun. Therefore, one of the main goals of the Green Plan 2030 is to quadruple solar energy use to 1.5 GW peak by 2025, with further plans to reach 2 GW peak by 2030.

However for Singapore In order to achieve such ambitious goals and to unlock the true potential of green photovoltaics, it has to fall back on the most modern technologies.

Adverse conditions require increased technology

Singapore Spatial constraints led Sunseap to view offshore as a viable alternative to renewable energies and eventually use the PV system in coastal waters. With this, Sunseap also reached another milestone: the construction of an underwater cable system that connects the floating platform with the mainland, creating a 22 KV power distribution network.

Unlike inland waters, the open ocean is subject to a range of conditions and is prone to change, from temperature fluctuations and strong waves to the corrosive nature of salt water. Such unfavorable conditions, combined with the biofouling that is common in warm tropical waters – where microorganisms, plants, algae and small animals collect on surfaces – can potentially accelerate the degradation of PV system components such as inverters.

Leveraging its expertise in integrating Artificial Intelligence (AI) and the cloud, Huawei is introducing the latest information and communication technology (ICT) into PV systems to optimize power generation. Sunseap has selected Huawei as the supplier of its field-tested intelligent string inverters – Huawei SUN2000-90KTL-H2 – to make the floating solar park more efficient, safer and more reliable.

“We are honored to have been selected by Sunseap to a Singapore Solar energy solutions provider to provide industry leading solar inverters for one of the world’s largest floating offshore PV projects, “said Bruce Li, Managing Director of the Huawei Asia-Pacific Enterprise Digital Power Business. “As an expert in integrating digital and power electronics technologies, Huawei is committed to helping people and industries around the world benefit from clean solar energy and accelerate the transition to renewable energies with its innovative smart PV solutions. to work closely with and contribute to Sunseap. ” to Singapore Green Plan 2030. “

Power supply Singapore “Green plan” with smart PV solutions

Huawei inverters have already contributed to the generation of gigawatts of electricity in solar power systems around the world and have demonstrated the company’s ability to operate successfully on any scale and under any conditions. In addition, the inverters have undergone a series of salt corrosion and heat dissipation tests that demonstrate their ability to withstand harsh environments and temperatures from -55 ° C to 80 ° C. By using Huawei inverters, Sunseap was able to streamline the O&M process of the floating platform and prevent rust and general material wear and tear.

In addition to the performance advantages, a modular design ensures quick and easy deployment with minimal on-site adjustments. This ease of deployment was another key differentiator that led Sunseap to select Huawei as its technology partner.

Shawn Tan, Vice President of Engineering at Sunseap, said, “The portability of Huawei’s string inverters was a key feature as we were able to install the inverters directly on the floating platform next to the PV modules. This meant that direct current was no longer required. DC) cable hose and DC combiner boxes, which reduce costs and operating times. Due to the unique design of the inverters, the heat is dissipated more efficiently and the overall reliability of the entire PV system is increased. “

By implementing Huawei’s smart string inverters, Sunseap has also optimized the O&M process and its engineers can now conveniently perform daily routine tests remotely. Wilson Tsen, Manager of Business Development and Project Management at Sunseap, commented: “Thanks to Huawei’s Smart PV solution and its intelligent O&M platform, we can perform routine inspections and maintenance of plant equipment, floats and mooring lines with greater convenience and ease of use. The technology from Huawei is simply groundbreaking: we can not only diagnose system problems remotely, but also fix errors without having to be physically on site. “

The completion of this project and the time to get connected will hopefully serve as a blueprint for other countries with low land scarcity and densely populated areas in the region to launch similar initiatives.

Frank Phuan, Co-Founder and Chief Executive Officer (CEO) of Sunseap, commented, “The Green Plan of the Singapore Government is strong against climate change and the 5 MW peak floating offshore facility we have here is just a small step forward on the road to carbon neutrality. I hope Sunseap and Huawei will continue to contribute to the clean energy landscape here in the future Singapore. ”

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