Data Protection

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 Green s.r.o., Digital Energy Services 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.

For the complete version of the document on principles of data protection in Czech, please click here.

Terms and Conditions

What do the Terms & Conditions say?

Terms & Conditions are an integral part of the contractual relationship between customer and energy provider. They tell you what makes up the electricity price, how we use your personal data, what your and our rights and obligations are, and when you can withdraw from your contract. We are required to inform you of every change that is made to the Terms & Conditions.

Terms & Conditions are an important provision in the contract. That is why we have prepared a short breakdown for you of what they contain. You may find the full version of the Terms & Conditions for Nano Energies Trade valid from June 1, 2019, under this link.

Terms & Conditions for Nano Energies Trade valid by June 1, 2019 are available here. Please note that Terms & Conditions are available in Czech only. If you have any questions, we are happy to assist you at info@nanoenergies.cz.

Price of Electricity


The price you pay for your electricity is made up of two components – a distribution charge and the cost of the actual electricity you consume. Your provider (Nano Energies) sets the price of electricity. Providers are required to publish a new price list at latest 30 days before it comes into effect. We usually change prices at the beginning of the calendar year and publish the new price list on our website on December 1st. If we raise the price and you find that this change does not suit you, you can withdraw from your contract within 3 months.


The second component are regulated charges. These include charges for the service system, renewable sources of energy or a distribution charge, which is a flat rate for the electricity cable connecting you to the system. The distribution charge is the same every month, regardless of whether your heating and lights are switched on 24/7 or whether you are away on holiday for the whole month. The distribution charge is set by the Energy Regulatory Office and the distribution network is managed by the distributor (ČEZ, PRE, EON or, in some cases, a local distributor).

Payment Terms

It is up to you to decide how often to pay your deposits – you can pay them in monthly, quarterly or annual instalments. You can also choose how much that deposit will be. We can help you set the amount that best fits your actual consumption levels.

We will send you an invoice to settle any overpayments or underpayments during every invoice period. One invoice period is the time between two meter readings. This is usually one year. If any changes occur at your supply point during this time, the standard invoice period may be broken down into several smaller invoice periods. Payments are generally due 14 days after the date of the invoice.

You can pay by direct debit, bank transfer, standing order, SIPO or money order. We will send any overpayments back to your account, send you a money order or apply them to your deposit for the following invoice period.

Contract Duration and Termination

Indefinite Duration Contracts

Most of our contracts are of indefinite duration. You have the right to withdraw from this contract at any time. Our withdrawal period is one calendar month and starts on the first day of the following month. So, if you decide to withdraw from your contract with us on January 15th, you will need to have a new electricity provider starting March 1st.

Fixed-term Contracts

Some of our contracts are fixed-term contracts. You can withdraw from them only if you are moving house, closing your business, etc. In all other cases, neither we nor you have the right to withdraw from the contract while it is still effective. Fixed-term contracts are automatically renewed every year. You can withdraw from them at least 20 days prior to their expiry date.

Nano Energies Trade Economy Tariff Price Lists



ČEZ distribution area

EG.D distribution area

PRE distribution area


ČEZ distribution area

EG.D distribution area

PRE distribution area



ČEZ distribution area

EG.D distribution area

PRE distribution area


ČEZ distribution area

EG.D distribution area

PRE distribution area