Singapore Floating Solar is the world’s largest solar farm, spanning the size of 45 football fields and producing 60 megawatts worth of power and reducing 32 kilotonnes of carbon emissions annually. It costs 11 million dollars and the oyster farmers in Hong Kong could use this as inspiration to add to their business on top of oyster farming, as it helps produce cleaner energy as well as adds to their income.
Another area that oyster farmers could potentially look at is hydrogen production. Hydrogen can be used as an environmentally friendly alternative to fossil fuels. On average, 1 litre of water can produce around 622-1235 litres of hydrogen through electrolysis. 1kg (11000L) of Hydrogen can sell for $16.51, so with the abundance of water nearby, oyster farmers can easily use it to their advantage and make extra money through hydrogen while also producing a clean fuel.