SolarPanels

local sides = { "left" , "right" }

function solars()
  local s = {}
  for k,p in pairs(sides) do
    s[k] = peripheral.wrap(p)
  end
  return s
end

function updateSolars(solars)
  for k,p in pairs(solars) do
    local status = false
    local current = p.getEnergyStored()
    if not (current == 0) then
      status = redstone.getOutput(sides[k]) or (current == p.getMaxEnergyStored())
    end
    redstone.setOutput(sides[k], status)
  end
end

repeat
  updateSolars(solars())
  sleep(5)
until theEndOfTime