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gigabit—bandwidth of a network link, for instance, 1 Gbit/s = 1 000 000 000 bit/s. gigabyte —for instance, for hard disk capacity, 120 GB = 120 000 000 000 bytes ; gigayear or gigaannum —one billion (10 9 ) years, sometimes abbreviated Gyr, but the preferred usage is Ga or, for years ago , GA.
1 × 10 −14: −110 dBm tech: approximate lower limit of power reception on digital spread-spectrum cell phones 10 −12: pico-(pW) 1 × 10 −12: −90 dBm biomed: average power consumption of a human cell: 10 −11: 1.84 × 10 −11: −77 dBm phys: power lost in the form of synchrotron radiation by a proton revolving in the Large Hadron ...
If a plant is only needed during the day, for example, even if it operates at full power output from 8 am to 8 pm every day (12 hours) all year long, it would only have a 50% capacity factor. Due to low capacity factors, electricity from peaking power plants is relatively expensive because the limited generation has to cover the plant fixed costs.
1 terawatt hour per year = 1 × 10 12 W·h / (365 days × 24 hours per day) ≈ 114 million watts, equivalent to approximately 114 megawatts of constant power output. The watt-second is a unit of energy, equal to the joule. One kilowatt hour is 3,600,000 watt seconds.
It is commonly used as a unit of time to denote length of time before the present in 10 9 years. This initialism is often used in the sciences of astronomy, geology, and paleontology. The "billion" in bya is the 10 9 "billion" of the short scale of the U.S., [1] not the long-scale 10 12 "billion" of some European usage.
And a week ago, Microsoft struck a deal with Constellation that will see the restart of a Three Mile Island reactor, providing 835 megawatts of carbon-free energy for Microsoft’s data centers ...
A 365-day year equals 8,760 hours, so over a period of one year, power of one gigawatt equates to 8.76 terawatt-hours of energy. Conversely, one terawatt-hour is equal to a sustained power of about 114 megawatts for a period of one year.
3.6×10 12 J 1 GW·h (gigawatt-hour) [160] 4×10 12 J Electricity generated by one 20-kg CANDU fuel bundle assuming ~29% [161] thermal efficiency of reactor [162] [163] 4.2×10 12 J Chemical energy released by the detonation of 1 kiloton of TNT [59] [164] 6.4×10 12 J