Underwater view of a hydrokinetic turbine mounted inside a reinforced concrete sleeve around a bridge pier.

River Current Never Rests – Retrofitting Urban Infrastructure for Hydrokinetic Power

There are roughly 600,000 bridges in the United States alone. A large portion of them cross rivers. Every one of those rivers moves water through city centers, industrial zones, and residential districts, 24 hours a day, without stopping. The concrete piers holding those bridges are already sitting in that current, splitting it, generating turbulence, and…

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Modern combined-cycle power plant in blue hour.

The Science of Energy Conversion Efficiency

In 2016, a power plant in Bouchain, northern France, reported the highest heat-to-electricity conversion efficiency ever recorded for a commercial gas turbine installation. The plant, built around a GE 9HA gas turbine, hit 62.22 percent. Engineers had spent years refining every stage: combustion temperatures pressed close to the thermal tolerance of nickel-based superalloys, ceramic blade…

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