Wild things thrive in transmission pathways that crisscross states.
We have all the technologies needed to make the electric grid run on renewables and lower pollution. What are they and what are the barriers to adopting them widely?
US and Russian tension over power grid cyber attacks is a concern for global stability, but it also highlights our own critical infrastructure vulnerabilities.
Solar and wind can't deliver power on demand. But overbuilding solar and wind, and simply dumping unneeded energy, would go a long way to smoothing out those bumps, study finds.
Electric utilities have a right to make money on their government-granted monopolies, but customers also have a right to know what cyber-protections they would get if they paid more.
South Africa's president has committed to structural reforms in the energy sector.
The government wants the power to break up power companies if they keep prices high. There's little to suggest it would achieve much.
The spread of ride-hailing services and autonomous vehicles will lead to higher energy demand, a study finds. Electric vehicles and a much cleaner grid are the only way to avoid more emissions.
Hurricanes Michael and Florence have knocked power out for millions of people. Burying power lines could help but the costs are high.
As South American countries recover from a massive blackout, the US isn't immune: The Northeast Blackout of 2003 cut power to 50 million people, and many threats to the electricity grid remain.
Power utilities' cybersecurity practices may be effective, but need to evolve over time. And all companies operating elements of the grid – even the small ones – should step up.
Experts explain the task of securing the electrical grid against cyberattacks, and discuss potential solutions and the risk of failure.
Households that are most likely to go solar are those that can afford solar panels, but aren't so rich that they don't have to worry about their electricity bill at all, says a survey of 8,000 homes.
Large-scale solar and wind tend to push energy prices down, which sounds great as a consumer. But that makes keeping the grid in constant balance harder.
Energy storage, such as big batteries, on the power grid is generally seen as 'green' technology but the reality is more complicated, an analysis finds.
Yes, Puerto Rico and any other storm-vulnerable location could benefit from on-site solar and battery backup, but it's unrealistic to say these microgrids are enough to power the island.
Two moves by the Trump administration signal a dramatic shift in energy policy to favor coal and nuclear, but markets forces and legal challenges mean changes could take years.
The price of renewable energy will fall significantly relative to new-build coal in coming decades, making an all-renewable electricity system more desirable, both economically and environmentally.
US military bases usually get their electricity from the civilian grid, which is vulnerable to attack and to disaster. Solar-powered microgrids could protect national security, and would save money.
The centralised regulation of electric power in Nigeria is stalling progress in the sector. To achieve stable power supply, the country must obey its constitution and decentralise regulation.