Hydro

Hydropower is booming, but unless you live in China, Latin America, or Africa, you may have missed it. Global installed capacity of hydroelectric generation has grown by more than 25% over the past decade

Nuclear costs aren’t on the rise globally as has been widely thought, says a new report from the International Energy Agency (IEA) and Nuclear Energy Agency (NEA) surveying the levelized cost of generating electricity (LCOE).  The eighth edition of the report, “Projected Costs of Generating Electricity” compiles data for 181 plants in 19 OECD and […]

For decades, hydropower plants were mainly built and operated as a cost-efficient source of clean electricity. But despite more than a century of development, there is still scope for expanding generation from

The 335-MW Waneta expansion completed this June near Trail, British Columbia, adds a second powerhouse downstream of the Waneta Dam on the Pend-d’Oreille River, near the border between Canada and the U.S. (Figure 5). 5. Second powerhouse. The Waneta Expansion Limited Partnership this June connected the Waneta Expansion Project near Trail, British Columbia, to the […]

Australian firm Carnegie Wave Energy, operator of the Perth Wave Energy Project—the world’s first commercial-scale, grid-connected wave energy array—is on target to take its CETO technology to the next stage with a four-fold improvement on a dollar-per-MW basis, CEO Greg Allen said. The Perth Wave Energy Project employs three 10-meter-diameter buoys that generate about 5% […]

The global hydropower sector has seen an upsurge in development activity lately, with installed capacity growing by 27% since 2004 (Figure 2), a new report from the World Energy Council (WEC) suggests. 2. World hydropower development. Hydropower development around the world stalled from 1999 to 2005, reflecting the impact of the World Commission on Dams, […]

California’s grid gurus say they can make it through this summer, but the future may pose real problems for a hydro-heavy regional system. As the grip of California’s four-year drought tightens, will the long-running event crimp electricity generation in the state? So far, according to the California Independent System Operator (CAISO), which dispatches much of […]

At Tennessee Valley Authority (TVA), repeated generation transitions have marked the giant public power utility’s long history, from hydro, to coal, to nuclear. The latest resource plan points to natural gas, along with renewables and energy efficiency, as the basis for the agency’s generating future. At the Tennessee Valley Authority (TVA), generation transitions are nothing […]

In the UK, which has the world’s largest offshore wind capacity, in large part due to government backing, formal negotiations have begun on public funding of a £1 billion ($1.48 billion) tidal lagoon project to produce electricity from turbines in Swansea Bay, South Wales. The 320-MW project (Figure 3)—which could be the first of its […]

Everyone loves efficiencies. Combining generation technologies can create a plant that’s more than the sum of its parts, but engineering challenges mean these projects are not for the faint of heart. When you think of “hybrids” these days, your first thought is probably of automobiles. But hybrids—hybrid power plants, that is—are starting to emerge in […]