Tag: Clean energy

Onions protect solar modules, securing their long-term output. Hemispherical solar cells could deliver even more electricity. Now a Norwegian startup’s system is enabling homeowners to harness their solar energy more efficiently and make provisions for the winter months. First, a fuel cell converts the solar energy into hydrogen. Then, using the firm’s patented technology, it is processed into a...

A rope with liquid crystals twists when exposed to infrared light, enabling it to transport items. Now a California-based research team knows the ropes when it comes to efficiently storing solar energy thanks to a newly developed molecule. When hit by sunlight, it contorts itself into a strained shape and can remain that way for years. If acid is...

It’s important to know ships’ coordinates as well as the effect they’re having on the environment. Now, smaller boats at anchor can help generate renewable energy through hydropower thanks to a startup based in southeast Alaska. Its rotor device is secured to the boat by rope; under the water, tidal currents make the rotor spin, powering the generator. Weighing...

Hemispherical solar cells catch the light at multiple angles to generate power. Similarly, a Swiss startup is taking the sun’s position as its starting point, and its system comprises movable solar modules. They are attached to buildings by a framework, and angled by individual engines towards the sun. Installed outside windows, the modules provide shade and produce electricity at...

Supply and demand of biological waste is becoming more transparent. Meanwhile, in order to promote the funding of sustainable projects, a Portuguese startup has launched a platform for private individuals and organisations. Both can invest in projects and receive interest of up to 9% each year. In turn, projects by profit-oriented or charitable organisations must adhere to the UN’s...

Dusting solar modules can be a magical move. Now, a Turkish-based research team is experimenting with a more efficient way of turning sunlight into electricity. Using computer simulation, the team divided a solar cell into multiple small units. Then they assembled them into a hemispherical, rather than flat, form. This allows for more light to be captured at different...

The flow of rivers can help generate electricity. So too five long, curved tube halves. At least, according to the patented design of a Lisbon-based startup. The parts are fastened to a pole, making a low-maintenance wind turbine. As the technology is scalable three sizes of the noiseless, aerodynamic turbine are planned. A small 100W generator, 1.2 metres tall;...

Recycling rare earths, which are vital for electronic components, is critical. Carbon dioxide is reusable, too, and can generate sustainable electricity - just like in hydroelectric plants. In their test facility, a research team in Texas exchanged water for supercritical CO2. Above a temperature of 31℃ and pressure of 74 bar, sCO2 resembles a gas, but acts more like...