Each probe gets its electrical power from three radioisotope thermoelectric generators -LRB- RTGs -RRB- , which are expected to continue to generate enough electric power to let the probes keep communicating with LOCATION@1 at least until the year NUMBER@1 .

Both Voyager probes are powered by three radioisotope thermoelectric generators , which have far outlasted their originally intended lifespan , and are now expected to continue to generate enough power to keep communicating with Earth until at least around the year NUMBER@2 .
