Jon Wellinghoff

Guarding the Grid

In 2003, an overheated power line near Cleveland, Ohio sagged into a tree and shorted out. It started a cascade of power line failures across the Midwest, Northeast and parts of Canada, and causing the worst blackout in U.S. history. Since then, utilities and grid operators have used new technology and procedures to prevent another major blackout – but can they compete with an aging grid and estimated $1 trillion in required new investment?

energyNOW! anchor Thalia Assuras looked at cutting-edge technology that can prevent blackouts before they occur, talked to federal officials about government efforts to create a safer and smarter grid, and went inside the high-tech nerve center of the country’s largest grid operator to see how we’re guarding the grid.

Another Cheap Way to Store Solar and Wind Power

UK startup Isentropic Energy has proposed the simplest of thermal energy storage systems, according to Powermag. Two large containers of gas and gravel, one hot (500C) and one cold (–160C) provide the temperature difference to operate a heat pump. Off-peak surplus wind power or solar energy is used to heat up the contents of the hot tank and to retain that temperature.

Thought Solar Was Hard to Permit? Try Pumped Storage!

When you consider the environmental benefits of solar power for providing electricity, it has always seemed unfair that it takes so much bureaucracy to overcome to get it built, even in the nation’s leader, California.

Whereas a natural gas power plant sails through the permitting process with ease, solar can take years and be tripped up by technicalities that don’t slow the permitting of polluting power plants…