Lifeboat Foundation

Germany helped make solar power cheap. As of June this year, it boasts 1 million homes that have installed rooftop solar panels. That means the country produces a lot of renewable energy—sometimes more than it can use.

At such times, German grid operators have had to pay neighboring countries or grids to use the excess electricity. Since the beginning of this year, German grids have accumulated 194 hours (paywall) with negative power prices.

Now Germany is turning to energy storage as a solution to the problem of excess electricity. On Aug. 28, an energy ministry official attended the commissioning (link in German) of the 100,000th home to install a battery-storage system that’s connected to the grid.

Continue reading “100,000 homes in Germany now have battery-storage systems connected to the grid” »

New research finds that severe air pollution can eliminate all profits from solar panel installations.

In 1999 the United Nations acknowledged that the development gap between rich and poor countries was widening: about three-fifths of the world’s population lacked access to basic sanitation and one-third did not have access to safe drinking water. In spite of many initiatives and efforts, the sanitation issue is still largely unresolved; it is estimated that 2.3 billion people — primarily in Asia, sub-Saharan Africa, and Latin America and the Caribbean — still lack access to basic sanitation (toilet). To address this challenge, in 2015, the global community adopted a Sustainable Development Goal dedicated to clean water and sanitation (SDG 6). Target 6.2 under this Goal calls for, “by 2030, achieving access to adequate and equitable sanitation and hygiene for all and ending open defecation.”

ESA business applications in cooperation with Toilet Board Coalition (http://www.toiletboard.org/) will be launching a new Invitation to Tender in Q3 2018 to assess the technical feasibility and viability of space-based services in support of sanitation for developing economies, and will establish the roadmap for service implementation through potential follow-on demonstration projects.

Toilet Board Coalition is a business-led partnership addressing the global sanitation crisis by accelerating the Sanitation Economy; it brings a network of business partners and sanitation development stakeholders, as well as experts from the global sanitation community. The Toilet Board Coalition will provide specific use cases and requirements derived from its two funded pilot projects, each assessing scalability of the Sanitation Economy.

SpaceX is preparing to make its first demo launches for NASA’s commercial crew mission program, which aims to bring back the capability for U.S. spacecraft to fly astronauts to space.

The rocket company plans to use Tesla Model X vehicles to bring the first astronauts flying in the Crew Dragon spacecraft to the launch pad.

It appears to be the latest example of some synergy between Elon Musk’s two main companies.

Continue reading “Tesla Model X will carry first astronauts flying in SpaceX’s Dragon spacecraft to launch pad” »

In 2018, what is left to explore in the world? It seems unlikely, say, that humans might find an untouched forest to study, someplace that hasn’t been bulldozed and burnt and exploited within an inch of its life for precious minerals or virgin timber. But that’s exactly what happened this past spring, when a Welsh researcher, Dr. Julian Bayliss, led a 28-person team that included scientists specially selected for their different talents as well as logistics experts, rock climbers, and filmmakers to the top of a mountain in Mozambique.

The story of the Mount Lico expedition began six years ago when Bayliss, a conservation scientist and butterfly expert, happened to spy a small forest atop a mountain using Google Earth. It wasn’t the first time he’d found such a place; Bayliss had been using Google Earth to explore high-altitude rainforests in Africa for around 15 years. In February 2017, the time was finally right: Bayliss brought a drone to the base of the 410-foot sheer rock protuberance (technically known as an inselberg) to confirm that there was a forest on top. This was no small feat. The area surrounding Mount Lico is a patchwork of smallholder farms, tea and eucalyptus plantations, and woodlands. There are no paved roads, no hotels — just rivers to cross, plants to hack away with machetes, and miles of dirt track to navigate.

While locals were aware of Mount Lico and used the natural resources of surrounding forests, its tall, sheer walls meant that it was nearly impossible to access, which made it likely that the land on top was untouched by humans. However, scientists would later find out that someone had been up there at least once.

Continue reading “How Google Earth led a team of scientists to discover an untouched mountaintop rainforest” »

Tesla’s Semi truck has already made some city-to-city trips, but how does it fare on cross-country jaunts — you know, what it’ll be doing when it enters service? Just fine, if you ask Elon Musk. In response to an Electrek piece on the Semi’s latest visit (to Arkansas trucking behemoth J.B. Hunt), the CEO noted that the Semi has been traveling thousands of miles entirely by itself, using the existing Supercharger network. The only necessary help is an “extension cord” to help the truck plug in. To be exact, it’s a system of cords that plugs into multiple stations at once to top up the Semi’s giant battery before the company’s Megachargers come online.

That solo travel is likely meant in part to reassure customers (including J.B. Hunt) that the Semi is already capable of handling long-distance trips without escorts. However, it does leave a few open questions. How long does it take to top up using Superchargers, and how likely is it that drivers could rely on them when Megachargers aren’t available? While it’s easy for a Tesla-operated truck to cross the US using the existing framework, it’d be another matter with thousands of third-party trucks in service. This is a significant step toward the Semi hitting the road in earnest, but there are many more steps to go.

Continue reading “Tesla’s Semi truck is traveling cross-country ‘alone’” »

A university in Singapore has conducted one of the first practical flights of a solar-powered quadcopter drone.

The prototype has flown as high as 10 meters (about 33 feet) in test flights using solar power with no battery or other energy storage on board, according to the National University of Singapore (NUS), which announced that an engineering team had conducted the test flight.

“Rotary winged aircraft are significantly less efficient at generating lift compared to their fixed wing counterparts [so] a viable 100 per cent solar rotary aircraft that can take-off and land vertically remains a major engineering challenge to date,” the university said in a statement.

Continue reading “Solar-powered quadcopter drone takes flight” »

Rural communities in Japan are facing a labor shortage as farmers age and young people move to urban areas. The drones, which fly over fields quickly performing tasks strenuous to farmers, may be one part of how farms in the aging rural heartland can adapt.

Packing more energy into batteries is the key to delivering electric cars with longer range, smartphones that can last days—and cheaper electronic products all around.

The promise: Lithium-oxygen batteries represent one of the more promising paths toward that end. They could boost energy density by an order of magnitude above conventional lithium-ion batteries—in theory, at least. In a paper published today in Science, researchers at the University of Waterloo identified ways of addressing some of the major hurdles to converting that potential into commercial reality.

The challenge: A critical problem has been that as a lithium-oxygen battery discharges, oxygen is converted into superoxide and then lithium peroxide, reactive compounds that corrode the battery’s components over time. That, in turn, limits its recharging ability—and any real-world utility.

Continue reading “Scientists deliver a longer-lasting lithium-oxygen battery” »