Fossil fuels still supply about 80% of the world’s power. How can energy be produced and used more sustainably to meet climate targets? We answer your questions. film supported by @Infosys
Timeline: 00:00 – Why energy needs to become more sustainable 00:33 – How much energy should come from renewables? 01:19 – Why isn’t nuclear power used more widely? 02:19 – How can solar power be made more efficient? 03:34 – Will biofuels become widely used? 04:30 – Do electric vehicles make a difference? 05:10 – How heating and air conditioning can be more sustainable
Space launch costs are dropping rapidly. Solar panels are cheaper than ever. Could space-based solar power soon be price-competitive with nuclear? Promoted as a zero-carbon solution, classified military space planes have also been conducting experiments into wireless power transmission. The FT’s Peggy Hollinger looks at whether space-based solar power can move beyond science fiction.
The community living on the Scottish Isle of Eigg were the first in the world to set up their own off-grid energy system powered by wind, water and the Sun. The tiny island has shown it’s possible to rely almost entirely on renewables. Since it was launched in 2008, they have received visitors from several other countries wanting to learn more about the project. Community Energy Malawi, who help to set up renewable energy systems across Malawi, used their experience to set up a solar minigrid in Sitolo village, a community that previously relied on fossil fuels and firewood.
A selection of three essential articles read aloud from the latest issue of The Economist. This week, the first big energy shock of the green era, how covid-19 will move from pandemic to endemic (11:29) and our Charlemagne columnist assesses the odds of “Polexit” versus a “dirty remain” (17:21).
On Sept. 5, 2021, for the first time, a large high-temperature superconducting electromagnet was ramped up to a field strength of 20 tesla, the most powerful magnetic field of its kind ever created on Earth. That successful demonstration helps resolve the greatest uncertainty in the quest to build the world’s first fusion power plant that can produce more power than it consumes, according to the project’s leaders at MIT and startup company Commonwealth Fusion Systems.
It’s been hailed as fuel of the future. Hydrogen is clean, flexible and energy efficient. But in practice there are huge hurdles to overcome before widespread adoption can be achieved.
Video timeline: 00:00 How hydrogen fuel is generated. 02:04 How hydrogen fuel could be used. 02:46 Why hydrogen fuel hasn’t taken off in the past. 03:40 Is hydrogen fuel safe? 04:31 Hydrogen’s advantage over batteries. 05:00 How sustainable is hydrogen fuel? 06:13 Why the hype about hydrogen may be different this time.
Political battles at the most local levels are slowing the pace of decarbonization Property owners in the windy and sunny parts of the U.S. are pushing back against large-scale renewable energy development, opposition that researchers say could slow the transition to a cleaner economy. Photo: Aaron Yoder/WSJ
Small solar panels are to be installed on the roofs of houses in the village of Sabana Real, Dominican Republic. The local project is part of a major plan: By 2025, the country hopes to generate a quarter of its energy from renewable sources.