ReactorControl

r=peripheral.wrap("back")
energyMax=10000000
percentOff=energyMax/100*20
percentOn=energyMax/100*80
while true do
energy=p.getEnergyStored()
if energy<percentOn then
r.setActive(true)
end
if energy>percentOff then
r.setActive(false)
end
sleep(1)
end