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Invoice
Energía XXI electricity bill
How to understand your regulated market electricity bill
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Invoice
Energía XXI
gas billHow to understand your gas bill on the regulated market
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Invoice
How to pay
your billHow to pay your Energía XXI bill
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Invoice
Activate electronic
invoiceElectronic billing from Energía XXI
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Readings
Send electricity
and gas readingsHow to claim an erroneous meter reading.
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Light
Electricity
access tollsChanges to your Energía XXI electricity bill
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Gas
Gas
access tollsChanges to the Energía XXI gas bill
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Taxes
Taxes on
your billHow does the new VAT on electricity affect households and businesses?
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Gas
Gas price
capCap on the price of gas used for generating electricity in Spain.