Diphenhydramine (Benadryl) is the most common first-generation antihistamine found in OTC sleep aids, whether used alone or in combination with pain relievers, including acetaminophen (eg, Tylenol PM), ibuprofen (eg, Advil PM), and aspirin. Other sleep aids often contain the antihistamine doxylamine (eg, Unisom).
The output of a wind turbine depends on the turbine's size and the wind's speed through the rotor. An average onshore wind turbine with a capacity of 2.5â3 MW can produce more than 6 million kWh in a year â enough to supply 1,500 average EU households with electricity. An average offshore wind turbine of 3.6 MW can power more than 3,312 average EU households.
Wind farm. The Gansu Wind Farm in China is the largest wind farm in the world, with a target capacity of 20,000 MW by 2020. The Shepherds Flat Wind Farm is an 845 MW wind farm in the U.S. state of Oregon. A wind farm is a group of wind turbines in the same location used to produce electricity.