"Øvre Forsland does not only serve hydropower to people in the region.
Nowadays a trend is noticed to use the hydrokinetic technology not only for pico hydropower, but also for larger hydropower plants, aiming at the conversion of kinetic energy present in large rivers, tidal flows and ocean streams.
In 2007-12, it spent $5.4bn on hydropower, but only $2bn on wind and solar projects combined.
Hydro generators for racing sailboats became popular after the 2008 race when Yannick Bestaven, the only competitor using hydropower, fine-tuned the design of the Watt and Sea hydro generator that is now seen on every boat in the Vendée Globe.
In this paper, we only discuss runoff hydropower plant.
In one Swiss prioritization project, catchments have been characterized based on their current ecological value and level of environmental pressure (not only from existing hydropower operations but also from infrastructure for flood control, wastewater treatment, etc).
But big hydropower projects are not free of emissions.
Hydroelectric potential is considerable because of the high rainfall and deep gorges of the Fouta Djallon, but the country's hydropower has been only partially developed, largely to meet the demands of the alumina sector.
Half of the world's total installed capacity is currently hydropower but China was the only nation to make substantial hydro additions last year.
If we do it ourselves, only cheap energy from hydropower will do".
Renewable energy technologies, including hydropower nuclear, only represent a minimal share in the world's energy supply.
