Hydro, Ocean and Solar Power Crossword Puzzle

QUESTIONS LIST:

• fish ladder : this terraced concrete spillway, which is adjacent to a hydro dam, allows fish to move past the dam to spawning grounds.
• megawatt : this unit of electrical power is equal to one million watts.
• weir : this barrier is used to control the flow rate of rivers during periods of high discharge.
• terawatt : this unit of electrical power is equal to one trillion watts.
• micro hydro : this refers to small-scale hydro power development.
• kilowatt : this unit of electrical power is equal to one thousand watts.
• greenhouse : these atmospheric _ gases prevent solar radiation from escaping earth.
• run-of-river : this is small-scale hydro-power generation that does not dam a river.
• gigawatt : this unit of electrical power is equal to one billion watts.
• tidal power : this energy is derived from moving sea water, which is caused by rising and falling tides.
• day lighting : this is architectural design aimed at letting in as much natural light through windows as possible.
• tidal barrage : this dam across a bay or estuary operates like a hydro dam.
• solar farm : this is a large installation of photovoltaic cells or specialized mirrors that capture or reflect solar radiation and turn it into electricity.
• csp : this uses mirrors to direct sunlight beams onto a tower where it heats a fluid to become steam and then generate electricity.
• sun belt : this latitude is where high pressure prevails, which results in sunny skies for most of the year.
• turbine : marine current _ - these are designed to generate electricity like wind turbines, except they are under water.
• solar roof tile : this is a special roof tile that also generates electricity.
• photovoltaic cells : these are made up of materials that allow electrons to flow through them, so energy from sunlight heats the cell molecules so that their electrons break away to become electricity.
• methane : this is the most potent greenhouse gas.