cellList = {["cofh_thermalexpansion_energycell_2"]=50000000,
	["cofh_thermalexpansion_energycell_3"]=50000000,
	["cofh_thermalexpansion_energycell_4"]=50000000,
	["cofh_thermalexpansion_energycell_5"]=50000000,
	["cofh_thermalexpansion_energycell_6"]=50000000,
	["cofh_thermalexpansion_energycell_7"]=50000000} -- list of items with size
cableSide = "bottom"

deb = true -- enable debug
sleepTime = 10 -- time to sleep between actions

-- Colors see: http://computercraft.info/wiki/Colors_%28API%29
-- Comments columns,rows,motor
-- Block 1 - Wood 1,4,20
engWood1 = colors.orange -- 1, 1, 5
engWood2 = colors.magenta -- 1, 1, 5
engWood34 = colors.lightBlue -- 1, 2, 10
engWoodB1 = colors.combine(engWood1, engWood2, engWood34) -- 1, 4, 20

-- Block 2 - Wood 1,4,40
engWoodB2 = colors.yellow --1,4,40

-- Block 3 - Wood 1,4,40
engWoodB3 = colors.lime --1,4,40

-- Block 4 - Wood 1,4,40
engWoodB4 = colors.pink --1,4,40

engWood = colors.combine(engWoodB1, engWoodB2, engWoodB3, engWoodB4) -- 2, 8, 100

engAll = engWood

powerLevels = {0, engWood1,  engWood34, engWoodB1, colors.combine(engWoodB1, engWoodB2), engWood, engAll}

-- DO NOT ALTER
maxEnergy = 0

for key,value in pairs(cellList) do
	peripheral.wrap(key)
	maxEnergy = maxEnergy + value
end

function getMaxEnergyLevel()
	return maxEnergy
end

function getEnergyLevel()
	currentEnergy = 0
	for key,value in pairs(cellList) do
		cell = peripheral.wrap(key)
		currentEnergy = currentEnergy + cell.getEnergyStored(key)
	end

	return currentEnergy
end

function getPercent()
	return 100 * getEnergyLevel() / getMaxEnergyLevel()
end

function startLevel(level)
	if (deb == true) then
		print("Level: "..level.." Color: "..powerLevels[level])
	end
	redstone.setBundledOutput(cableSide, powerLevels[level])
end

function numToString(number)
	str = ""
	multiplier = 1
	while (number > multiplier) do
		floored = math.floor(number/multiplier)
		str = math.fmod(floored,1000) .. "." .. str
		multiplier = multiplier * 1000
	end

	return str
end

while true do
	energyLevel = getEnergyLevel()
	energyPercent = getPercent()

	print("Current energy is:  ".. numToString(energyLevel) .. " or (" .. math.floor(energyLevel/1000000) .. "/" .. math.floor(getMaxEnergyLevel()/1000000) .. ") (" .. math.floor(energyPercent) .. "%)")
	if (energyPercent > 25) then
		startLevel(1)
	elseif (energyPercent > 20) then
		startLevel(2)
	elseif (energyPercent > 15) then
		startLevel(3)
	elseif (energyPercent > 12) then
		startLevel(4)
	elseif (energyPercent > 10) then
		startLevel(5)
	--elseif (energyPercent > 0.88) then
	else
		startLevel(6)
	end
	sleep(sleepTime)
end