Start / Om oss / Växjö Energi in english / Invoice Invoice Visa undermeny Payment methods The Sandvik Plant Invoice Fault Report Environment Change of address Sometimes it can be difficult to understand your invoice. We have therefore produced a guide that we hope will help you. Invoice explanation More than one invoice As an electricity grid customer, you receive two different invoices. The invoice you receive from us is for the electricity grid charge. The other comes from the electricity supplier you have selected and relates to the electricity you use.