Solar Impulse 2 set to resume round-the-world flight in April 2016

Madeleine Cuff
clock

Record-breaking solar-powered plane will take off in April 2016, after spending months grounded in Hawaii with battery problems

Solar Impulse 2, the solar-powered plane that was forced to suspend its round-the-world flight after suffering battery problems in July, will resume its mission in April 2016.

The Swiss team announced yesterday it has raised $20m to repair the battery problems that have left the plane stranded in Hawaii since July. The aircraft made headlines over the summer with a record-breaking five-day non-stop flight from Japan to Hawaii, during which the batteries sustained serious damage from overheating.

Solar Impulse 2 had been due to fly on to the US and North Africa as part of its 21,748-mile mission to highlight the potential of renewable technologies. It will now resume its journey in April 2016 following a series of test flights in March, the project's co-founder André Borschberg told journalists at the UN climate conference in Paris.

"We are all very focused and looking forward to continuing next year," he said.

The plane relies on more than 17,000 solar cells and four batteries to allow it to fly round the clock using only solar power. During the daytime it cruises at a maximum altitude of 9,000 feet as it charges its batteries, before descending and gliding through the night while drawing on power stored in the batteries.

Borschberg said the team has to wait until April to resume the flight because they need the days to lengthen for there to be enough power to fill the batteries ready for the night flight.

This article is part of BusinessGreen's Road to Paris hub, hosted in association with PwC.

More on R&D

How L'Oréal is harnessing nature to move beyond petrochemicals in cosmetics
R&D

How L'Oréal is harnessing nature to move beyond petrochemicals in cosmetics

The world's biggest cosmetics and beauty group has thousands of scientists developing nature-friendly ingredients for its products worldwide - BusinessGreen paid a visit to one of its R&D labs in France

Michael Holder
clock 01 May 2026 • 13 min read
YSL Beauty lifts the lid on its sustainability glow up
R&D

YSL Beauty lifts the lid on its sustainability glow up

YSL's new global sustainability and scientific director, Dania Blin, tells BusinessGreen how she plans to bolster the brand's 'scientific backbone' and balance sustainability and luxury in its product design

Stuart Stone
clock 22 April 2026 • 8 min read
Study: Mining for energy transition materials 'not a major source' of emissions
R&D

Study: Mining for energy transition materials 'not a major source' of emissions

New global dataset finds non-coal mining contributed just 0.54 per cent of global greenhouse gas emissions in 2024

clock 13 March 2026 • 3 min read