local energyMovingAverage = 0
local lastEnergy = -1

while true do
    updateConnectedRedstoneEnergyCells(cells)

    local maxEnergy = getMaxEnergyStored(cells)
    local energy = getEnergyStored(cells)
    local percentFull = getPercentEnergyStored(cells)

    if lastEnergy ~= -1 then
        local alpha = 0.25
        local deltaEnergy = energy - lastEnergy
        energyMovingAverage = (alpha * deltaEnergy) + ((1 - alpha) * energyMovingAverage)
    end

    lastEnergy = energy

    -- energyMovingAverage contains the moving average
    -- [...]

    os.sleep(1)
end