Beta-M

Soviet RTGs in dilapidated and vandalized condition, powered by Strontium-90 ⁹⁰Sr.

Some Soviet era lighthouses and beacons were unique insofar as they were powered by radioisotope thermoelectric generators called the Beta-M. It was capable of generating 10 watts of electricity, almost enough to power a compact fluorescent light bulb with light output equivalent to a 60 watt bulb. Those generators still in use are well past the point at which they should be retired, prompting environmental concerns.

See also

• Radioisotope thermoelectric generator

External links

• Norwegian environmental concerns over Beta-M generators still in use
• RTG Master Plan Development Results and Priority Action Plan Elaboration for its Implementation