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  2. Radioisotope thermoelectric generator - Wikipedia

    en.wikipedia.org/wiki/Radioisotope...

    Diagram of an RTG used on the Cassini probe. A radioisotope thermoelectric generator (RTG, RITEG), sometimes referred to as a radioisotope power system (RPS), is a type of nuclear battery that uses an array of thermocouples to convert the heat released by the decay of a suitable radioactive material into electricity by the Seebeck effect.

  3. Real-time clock - Wikipedia

    en.wikipedia.org/wiki/Real-time_clock

    RTCs often have an alternate source of power, so they can continue to keep time while the primary source of power is off or unavailable. This alternate source of power is normally a lithium battery in older systems, but some newer systems use a supercapacitor, [4] [5] because they are rechargeable and can be soldered. The alternate power source ...

  4. Multi-mission radioisotope thermoelectric generator - Wikipedia

    en.wikipedia.org/wiki/Multi-Mission_Radioisotope...

    A uniquely capable source of power is the radioisotope thermoelectric generator (RTG) – essentially a nuclear battery that reliably converts heat into electricity. [2] Radioisotope power has been used on eight Earth orbiting missions, eight missions to the outer planets, and the Apollo missions after Apollo 11 to the Moon.

  5. Stirling radioisotope generator - Wikipedia

    en.wikipedia.org/wiki/Stirling_radioisotope...

    In the early 21st century, a major project using this concept was undertaken: the Advanced Stirling Radioisotope Generator (ASRG), a power source based on a 55-watt electric converter. [3] [4] [5] The thermal power source for this system was the General Purpose Heat Source (GPHS).

  6. Alternating current - Wikipedia

    en.wikipedia.org/wiki/Alternating_current

    A schematic representation of long distance electric power transmission. From left to right: G=generator, U=step-up transformer, V=voltage at beginning of transmission line, Pt=power entering transmission line, I=current in wires, R=total resistance in wires, Pw=power lost in transmission line, Pe=power reaching the end of the transmission line, D=step-down transformer, C=consumers.

  7. 5 Alternative Energy Sources That Are Cheaper Than Solar

    www.aol.com/2013/07/19/alternative-energy...

    The co-inventor of PayPal, now turned alternative energy rock star, has built two companies -- solar power utility SolarCity (SCTY) and electric car company Tesla 5 Alternative Energy Sources That ...