Hydro

Large and small hydropower, hydrokinetic, and ocean power projects and technologies

Renewable energy’s growing share
Renewable energy’s growing share

  Renewable power development will continue to grow in the U.S., with the nonhydro total reaching 53,121 MW by the end of 2016. So predicts a soon-to-be-released report from Boulder,…



Promoting renewable exports

  Promoting renewable exports The DOE is not the only U.S. government department promoting renewable energy. Any U.S. energy firm or supplier looking to export its goods and services can…


Fuel cells reach MW class
Fuel cells reach MW class

A few years ago, skyrocketing energy costs and tighter emissions limits prompted officials at the Wastewater Treatment Division of King County's Department of Natural Resources and Parks in Washington State…


Nowhere to go but up  
Nowhere to go but up
 

Often, the best way to deliver a piece of bad news is to come right out and say it: 2004 was a bust year for the renewable energy industry. Sure,…


Big batteries blooming
Big batteries blooming

All interconnected transmission and distribution (T&D) grids have one thing in common: Their operators must continually dispatch generators to keep the network's supply and demand in balance at all times…


Roadmap for the all-electric warship

The United States Navy's interest in electric propulsion dates back to the launching of the 19,360-ton USS Jupiter (Figure 1) in August 1912. The Jupiter had a prototype electric propulsion…


A new player in backup power
A new player in backup power

There are many different types of fuel cells, and each has characteristics that make it more suitable than others for certain applications. For example, because molten carbonate fuel cells operate…