Nigeria

Australian renewable energy tech start-up Okra Solar has raised $3 million to scale up distribution of its solar-based hardware and software solutions and electrify more than 290,000 off-grid homes in Nigeria in the next three years while expanding its operations in Haiti and other countries.

An international research team has designed a residential solar-plus-storage system based on gravity. The system was built with a solar power generator, a bulk booster charge controller, an inverter, a solenoid device, a deep cycle battery, a pulley block, a geared motor, a microcontroller, and wire ropes. Its creators said the system is ideal for regions with high solar radiation. They found that, due to its high electrical requirements, the system needs to rely on high-power solar modules with an output of over 500 W.

Okra Solar, the Aussie startup we last saw delivering solar mini-grids to remote communities via a shared ping-pong table, is emerging from Covid-19 lockdown with new investors and two new pieces of tech that will better enable solar energy access to the 900 million people around the world still lacking power.