The old system of regulating frequency on electricity grids with the help of the inertia provided by large spinning masses is under threat by the rise of wind, solar, and batteries. But what will replace inertia-based control, and how will the transition work?
Solar and energy storage, either on their own or as part of clean energy portfolios, are showing that they can compete with natural gas in the United States. But will regulators wake up to this reality before half a trillion dollars worth of future stranded assets are built?
As a leader in the global energy transition, California is putting some of the highest levels of solar and wind on its grid in the world to date. And while the state’s grid operator has made some progress, the integration of these resources is currently limited not by physics, but by market rules and operational practices.
EVs and solar: As the electric vehicle market begins to take off, many are hoping that this technology will be complementary to solar PV. And while the potential is there, a closer look shows that there are many unanswered questions, and there is still a lot of work to be done.
Puerto Rico: The devastation wrought by Hurricane Maria on the island of Puerto Rico was vast and indiscriminate. Reporter Daniella Cheslow visited some of the areas most badly affected and found a shredded grid, a rising demand for energy independence, solar and storage, and a heartening reminder of humankind’s capacity for kindness, endurance and determination.
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