Why isn''t the U.S. electrical grid run on 100% renewable energy yet?

The technology to generate electricity with wind and solar has existed for decades. So why isn''t the electric grid already 100% powered by renewables? And what will it take to get there?

What are the challenges of integrating renewable energy into the grid?

Integrating renewable energy into the power grid brings several challenges because sources like solar and wind are intermittent and unpredictable. This means their output changes with

How Does Solar Work?

Below, you can find resources and information on the basics of solar radiation, photovoltaic and concentrating solar-thermal power technologies, electrical grid systems integration, and the non

Electrical grid shortcomings limit use of wind and solar energy

Solar power and wind power involve “direct” current. “And it has to be converted into alternating current for it to operate and play well with the grid,” Cohn said. Devices called inverters...

Three Myths About Renewable Energy and the Grid, Debunked

As wind and solar power have become dramatically cheaper, and their share of electricity generation grows, skeptics of these technologies are propagating several myths about renewable

Solar power generation drives electricity generation growth over the

Much of the utility-scale solar generation capacity additions will come online in Texas. We expect that solar electricity generation supplied to the grid managed by the Electric Reliability Council

Inside how wind and solar energy are being restricted across the US

Across America, local bans, moratoriums and construction impediments are blocking wind and solar energy with increasing levels of red tape. Here''s what USA TODAY''s analysis found.

Electricity Grid Alternative Energies

Renewables such as wind and solar are on the rise, but can the power grid run entirely on these intermittent energy sources? Caltech scientists explain.

Connecting Solar to the Grid is Harder Than You Think

The portion of the grid comprised of solar power is climbing rapidly every year, and not just in Texas, but worldwide. So the engineering challenges in getting these new sources of power to

Why growing wind and solar projects can''t connect to the grid

Companies are drawing up plans for thousands of wind and solar projects across the country. But many are running into a big obstacle. They can''t get connected to the electric grid. Dan...