The low-cost ocean current energy generator invented by a teenager is getting international attention yet again for its promise of providing clean electricity to distant coastal areas. Hannah Herbst, a 15-year-old inventor from Florida, came up with an innovative renewable energy system worth only $12 that can generate electricity using ocean currents and recycled materials along with a 3D printed propeller and a tiny hydroelectric generator. The innovative energy device, named BEACON, is inspired by energy poverty in developing nations and even received recognition at the 3M Young Scientist Challenge. The invention has been rediscovered in light of rising interests in renewable energy sources, off-grid power generation, and marine renewable energy sources.
How the Hannah Herbert’s clean energy ocean current generator works
Although Hannah Herbst’s innovation may seem simple, the concept of the invention is rather smart. The device takes advantage of the constant motion of ocean currents, converting the mechanical energy of water through a 3D printed propeller attached to a hydroelectric generator that is installed in a PVC pipe. Talking about the idea behind the invention, Hannah Herbst told Fast Company that she was inspired by the strong currents she saw while going boating with her family at the Boca Raton Inlet. What made the innovation special aside from its creative approach was the cost-efficiency of the device. Constructed from recycled and inexpensive materials, the prototype only required $12 to build. After being tested on the waters of Florida, the small generator managed to light up some LED lights. While solar panels or wind turbines require favorable weather conditions, ocean currents are constantly moving. This might be particularly helpful for remote coastal communities that suffer from unreliable weather.
Why remote communities could benefit from marine renewable energy
For Herbst, the invention held a special significance since according to her TedX talks in 2021, it had been motivated by her pen pal in Ethiopia who came from a region with restricted access to electricity.Herbst felt that in the future, the technology would be able to power various machines like desalination units and medical devices in remote villages. Scientists and engineers have already been investigating the use of marine renewable energy as an alternative source of power for remote areas, especially island communities where fossil fuels are expensive and hard to transport.According to Design Indaba, Herbst felt that a full-sized device would have the capacity to charge several car batteries in just an hour. Although the prototype itself was not large, it was indicative of how localised renewable energy could benefit communities which were often out of reach for the national grid.The invention gained popularity due to its accessibility since most forms of renewable energy require huge amounts of money to be invested in their installation and maintenance.
The lasting impact of Hannah Herbst’s clean energy invention
Over ten years since winning the 2015 Discovery Education 3M Young Scientist Challenge, Hannah Herbst’s BEACON generator is still making headlines when it comes to sustainable innovations and young scientists.There are various reasons for that, but one of the most important ones is that the invention had a humanitarian aspect. She also said to Fast Company that she “was going to open source it… everybody in the world can have access.” This meant that the teenager believed in making renewable energy technology accessible to everyone.Right now, there is renewed interest in tidal and ocean current power because countries all around the world are looking for alternative sources of energy. While large-scale projects in the area might still encounter some difficulties, Herbst’s invention stands out as a reminder that small inventions can lead to bigger discussions on energy access and sustainability.In a world where energy inequity is still a problem, the idea of a homemade generator made by a 15-year-old girl is still relevant.