By Celine Paton, Senior Financial Analyst, at the Solar Energy Research Institute of Singapore (SERIS),
National University of Singapore (NUS)
Before discussing the potential of floating solar to the African continent, the advantages this
technology can bring and its current level of maturity, it is important to first set the stage on a global
scale and understand since when we are speaking about “floating solar” as an additional solution to
land-based (including rooftop) solar PV systems.
Whilst the exact debut of floating solar worldwide remains debatable, the advancement and
deployment of the technology emerged in Asia, particularly in Japan and South Korea, from 2013
onwards. Although systems remained at first relatively small, commercial projects in the 1–3 MWp
range started emerging between 2013 and 2015, often built on irrigation reservoirs. Land scarcity,
which translated into high land acquisition costs and difficulty in obtaining land rights (or in converting
land earmarked for other purposes such as agriculture), pushed these two countries to find alternate
solutions to land-based solar PV projects, which benefited at the time from preferential feed-in tariffs
(FiTs).
After a few years, China rapidly came into the picture with significantly larger (around 8 MWp) floating
solar PV (FPV) systems, which started operating in 2015. Meanwhile pilots and small-scale projects
also emerged in Europe and elsewhere with various entrepreneurial companies launching innovative
designs, competing for higher energy output, easier maintenance, and costs reduction while keeping
quality, transportability and modularity as high as possible. In 2016, a 20 MWp floating solar plant was
built in China, the first large-scale project of many more to come, built on a coal mining subsidence
area, and tendered by the government under the Top Runner programme. Built on flooded coal mines,
these projects allowed reviving depleted areas and retraining/upskilling local communities, which
were previously largely dependent upon the coal mining industry. Other landmark floating solar
projects in 2016 were the 6.3 MWp Queen Elizabeth II and 2.9 MWp Godley systems, built on water
treatment reservoirs in the United Kingdom. From 2017 onwards, projects became larger, to even
reaching the record level of 150 MWp in China (also built on coal mining subsidence areas in the Anhui
and Shandong provinces), the two world’s largest floating solar projects completed to date.
National University of Singapore (NUS)
Before discussing the potential of floating solar to the African continent, the advantages this
technology can bring and its current level of maturity, it is important to first set the stage on a global
scale and understand since when we are speaking about “floating solar” as an additional solution to
land-based (including rooftop) solar PV systems.
Whilst the exact debut of floating solar worldwide remains debatable, the advancement and
deployment of the technology emerged in Asia, particularly in Japan and South Korea, from 2013
onwards. Although systems remained at first relatively small, commercial projects in the 1–3 MWp
range started emerging between 2013 and 2015, often built on irrigation reservoirs. Land scarcity,
which translated into high land acquisition costs and difficulty in obtaining land rights (or in converting
land earmarked for other purposes such as agriculture), pushed these two countries to find alternate
solutions to land-based solar PV projects, which benefited at the time from preferential feed-in tariffs
(FiTs).
After a few years, China rapidly came into the picture with significantly larger (around 8 MWp) floating
solar PV (FPV) systems, which started operating in 2015. Meanwhile pilots and small-scale projects
also emerged in Europe and elsewhere with various entrepreneurial companies launching innovative
designs, competing for higher energy output, easier maintenance, and costs reduction while keeping
quality, transportability and modularity as high as possible. In 2016, a 20 MWp floating solar plant was
built in China, the first large-scale project of many more to come, built on a coal mining subsidence
area, and tendered by the government under the Top Runner programme. Built on flooded coal mines,
these projects allowed reviving depleted areas and retraining/upskilling local communities, which
were previously largely dependent upon the coal mining industry. Other landmark floating solar
projects in 2016 were the 6.3 MWp Queen Elizabeth II and 2.9 MWp Godley systems, built on water
treatment reservoirs in the United Kingdom. From 2017 onwards, projects became larger, to even
reaching the record level of 150 MWp in China (also built on coal mining subsidence areas in the Anhui
and Shandong provinces), the two world’s largest floating solar projects completed to date.
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As shown in Figure 1 below, the last three years witnessed the global floating solar installed capacity
gaining significant momentum, mainly due to the advent of large projects in China. Whilst China still
holds the record in terms of project size, other countries are following suit and planning to build
sizeable floating solar projects, some even in the multiple hundreds of MW-scale, also making them
better candidate for non-recourse project financing. Just to name a few, South Korea is planning more
than 2 GWp of floating solar projects (to be built in various phases) at the Saemangeum Seawall dyke
on the coast of the Yellow Sea.
Read more.......
gaining significant momentum, mainly due to the advent of large projects in China. Whilst China still
holds the record in terms of project size, other countries are following suit and planning to build
sizeable floating solar projects, some even in the multiple hundreds of MW-scale, also making them
better candidate for non-recourse project financing. Just to name a few, South Korea is planning more
than 2 GWp of floating solar projects (to be built in various phases) at the Saemangeum Seawall dyke
on the coast of the Yellow Sea.
Read more.......
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