no data in difference series

[geoffreystevens]

There is data in the electricity consumption device but no data for the difference series

http://www.getembed.com/app#c94a2f01d89708fb406fed83665ccb1c36e441a5,f9ae76d7b8a5b5fbb6d61b495826f90e7b908ad2,e12ad8feff20e7b66307b704502eaf9f4895ab87,electricityConsumption_differenceSeries~7eae66a71f42c8bd203511bd8ca4b818728f20b1/search/2011-10-13@@@2012-08-31