Is Burying Power Lines Fire-Prevention Magic, or Magical Thinking?

Localized, distributed energy systems are popping up around California. As the larger electricity system becomes less reliable in the face of wildfires, more individuals are turning to microgrids and solar energy with help from organizations like Clean Coalition and Stone Edge Farm Microgrid. While still happening on a small scale, such energy systems may become more popular as its sustainability in a changing climate shows to be more resilient.

Hydrogen fuel has made promising strides from Germany to Japan, thanks to shifting markets for renewables, improved storage technologies, and emissions-reduction goals. Electrolysis that uses renewables to make the fuel could transform transportation and energy infrastructure, but a few concerns about the unintended effects persist.

One of the greatest challenges to integrating renewable energy sources into the power grid has been the issue of storage - where and how to keep power generated during off-hours (such as overnight) when demand is low. While batteries are on the rise as one solution, an Alabama power plant has discovered a natural way of storing energy until it is needed: pumping air into salt caverns.

Access to electricity in India takes a huge economic, educational, and health-related toll. A small company called Husk Power Systems has created an innovative system that is turning rice husks into electricity and illuminating India’s poorest state.

The Baltimore Shines program provides free solar panel installations to low-income homeowners through a 20-year lease model. An average of $1,500 in annual electricity bill savings have been achieved for 50 residents so far, with a plan of reaching 170 installations by the end of 2026.

The ALERT California system is a network of 1,000 cameras using machine learning to identify wildfires in remote, high-risk areas. When a fire is detected, the system sends an alert to operators and emergency responders monitoring the technology. AI helps detect fires sooner, improving firefighting efforts and improving disaster recovery.

As a way to reduce the amount of diesel fuel that powers trains, governments and transit companies around the world are turning to solar panels as a way to utilize renewable energy. In Australia, a solar train launched in 2017 that uses lithium-ion batteries that are charged by solar panels on the roof of the carriages. And a rail line in the United Kingdom uses energy from a solar farm to keep the train running. Scaling solar panels for nation-wide transit systems can be challenging, but many countries are committed to eliminating the use of fossil fuels on their rail networks.

Years after the California Energy Commission funded and launched demonstration microgrids, they’re seeing results. These microgrids, which are localized energy sources that can work independently from large electric grids, were fairly costly, but have shown demonstrable success in lowering utility bills and delivering low-carbon power. As the Commission moves forward with this effort, they hope to continue to learn by doing and improving their processes.

A team of engineers at IIT Madras, a public university in India, has partnered with local utilities and the national Ministry of Power to bring sustainable, low-cost electricity to off-grid rural villages in the northwestern state of Rajasthan. With solar power supplied by DC microgrids, these poor rural communities are experiencing transformations to increase quality-of-life: affordable fridges that aid in food preservation, fans which mitigate heat and repel mosquitoes, and battery-powered phones connecting them to public emergency services.

There is an ongoing competition to improve batteries as a method of energy storage that is environmentally conscious. Intense research on batteries is ongoing, including the development of the "saltwater battery', in order to improve their reliability, storage abilities and safety.