If you want to use our green electricity to cook, wash, light up your home and keep warm in the winter, we need to know where to send this green electricity. That is why we ask for your name, address, contact details and technical information regarding your electricity consumption. Without this information, it might just happen that your neighbour or mother-in-law starts going green instead of you! Your name, address and contact details are personal data, which we at Nano Energies process and protect against abuse.

Would you like to know more about how we use your personal data? Please keep reading.

Who is the data controller?

Your electricity provider is the data controller. Depending on which services you are using, that can either be Nano Energies a.s., DES Holding a.s., Nano Energies Slovensko s.r.o., Nano Energies Magyarország Kft., Nano Energies Hrvatska d.o.o., Digital Energy Services s.r.o., Nano Green s.r.o. or Nano Energies Trade s.r.o., all of whom make up the Nano Energies Group. Feel free to visit our office in the DRN office building in Prague (DRN – Narodni 135/14, Prague), give us a call at +420 226 257 257 or send us an email at info@nanoenergies.cz

Why do we process your personal data?

We process your personal data mainly to fulfil the contract we have signed with you and other legal obligations. We need it for our customer file system, taxes and accounting, debt collection, verification of your creditworthiness and payment history, direct marketing, fulfilment of legal obligations and improvement of our services.

Why do we process your personal data and what gives us the right to do so?

We process your personal data for the reasons outlined above. We do so to varying extents, depending on what is needed to fulfil the contract, any legal obligations, our legitimate interests and your consent to the processing of your personal data.

Fulfilment of legal obligations

In order to do what we do, we are required to fulfil a number of obligations. We need to process your identification and accounting data in compliance with the Energy Act (458/2000 Sb.) and Accounting Act (563/1991 Sb.). To fulfil these legal obligations, we store your personal data for the duration of the contract. If we are to sign a contract between us, you are required by law to give us your identification details. If you do not give us these details, we cannot proceed with signing the contract.

Fulfilment of the contract

We process your identification, contact and accounting details in order to fulfil all of the contractual obligations we have towards our customers and business partners. For this reason, we store these details for the duration of the contract.

Legitimate interests

Our legitimate interests authorize us to process identification and contact details, data regarding the use of our services, information about financial situations and service provision, as well as information from public sources. These enable us to sign a contract with you, exercise our rights in accordance with the contract and inform you of any news that may be of interest to you. If you are interested in signing a contract with us, we will store the information you give us for a duration of six months or longer, depending on your consent for this period. If you sign a contract with us, we will process your personal data for a maximum duration of ten years after the expiration of the contract or until a potential contractual claim following from the contract is exacted.


When you call us, we will ask you to give us your consent to process your personal data. We store any recordings concerning the fulfilment of the contract for the duration of the contract. All other recordings are stored until you withdraw your consent and at most for a duration of one month.

Providing information to third parties

Our employees and partners have access to your personal data. They are bound by obligations of confidentiality and are trained in data processing and security. We do most of the processing ourselves and do not need any third parties. There are, however, some operations that we cannot do ourselves and so we use the services and applications of processors who specialize in them. Their work is fully in accordance with the GDPR.

You decide what happens with your personal data

You have the right to ask us about the personal data we process, ask for access to it and, if need be, update, correct and limit your data, or withdraw your consent completely. You also have the right to raise objections against the processing of your personal data and ask for their deletion. If you have any doubts about adherence to the obligations associated with data processing, please feel free to contact us or the office for personal data protection.