On 17/06/2016 09:09, Nightjar wrote:
On 16-Jun-16 9:58 AM, Andy Burns wrote:
Nightjar wrote:

In the 1970s, the Soviet Union built a series of remote lighthouses
along their northern coast, which ran off individual subcritical
reactors.

Yes, but with enough juice for a light bulb ...

https://en.wikipedia.org/wiki/Radioisotope_thermoelectric_generator#Terrestrial



Isn't a light bulb basically all that a lighthouse needs?


Not a very powerful light bulb, though, according to the figures on WP.
Even allowing for it flashing on and off, so it's not powered all the
time, you are looking at a couple of hundred watts, maximum.