According to the provisions of art. 83 par. (4) of the Law no. 107 of 27.05.2016 regarding electricity:

The central electricity supplier purchases electricity on the electricity market, from eligible power plants that produce from renewable energy sources and electricity produced by district heating power plants and resells the electricity to suppliers at regulated prices approved by the National Agency for Energy Regulation, in the quantities established by it, in compliance with the provisions of this law, as well as the normative regulatory acts approved by the Agency.


art.83 par. (10) The suppliers are obliged to procure from the central electricity supplier the quantities of electricity established by the Agency in accordance with the Rules of the electricity market, according to their shares owned in the electricity retail market, at the regulated prices approved by Agency.
art.84 par. (4) The central electricity supplier is the balancing group official, consisting of urban district heating power plants and eligible power plants producing from renewable energy sources.
According to the provisions of art. 30 par. (2) of Law no. 10 of 26.02.2016 regarding the promotion of energy usage from renewable sources, the Central Electricity Supplier has the following basic obligations:
a) conclude contracts with eligible producers, within the terms and conditions established by the Regulation regarding the organization of tenders for the granting of status of eligible producer and the Regulation regarding the confirmation of status of eligible producer, in accordance with mandatory clauses developed and approved by the National Agency for Energy Regulation, and purchases from them the entire amount of electricity delivered to the electricity networks at the prices/tariffs established in accordance with this law;
b) requests the producers of electricity from renewable sources to present annual, monthly, weekly and next day forecasts on the quantities of electricity to be delivered in the electricity networks, according to the Rules of the electricity market;
c) collects and aggregates forecasts for the production of electricity from renewable sources received from eligible producers, establishes the quantities of electricity to be delivered to the electricity networks the next day and communicates this information daily to transmission system operators and/or distribution system operators in the manner and cases established by the Rules of the electricity market, approved by the National Agency for Energy Regulation;
d) calculates monthly the average price of the purchased electricity and presents the respective information to the National Agency for Energy Regulation, within the terms and conditions established by it;
e) based on the information presented by the transmission system operators and distribution system operators, determines the monthly quantities of electricity to be purchased by each supplier, according to the shares held on the electricity market and presents the information to the National Agency for Energy Regulation respectively, within the terms and conditions established by it;
f) concludes contracts for the supply of electricity from renewable sources with suppliers, at regulated prices, approved by the National Agency for Energy Regulation, in accordance with the provisions of the Law regarding electricity;
g) provides balancing services for all eligible producers and district heating power plants during the day until the creation of a market for electricity, as well as for eligible producers and district heating power plants that wish to delegate the balancing responsibility after the creation of this market;
h) transfers the guarantees of origin to the electricity suppliers, which correspond to the quantity of electricity distributed to them, in accordance with the present law;
i) submits to the National Agency for Energy Regulation the information requested in connection with the activity carried out in accordance with this law, within the terms and conditions established by it;
j) exercises other obligations established by this law and by the Law regarding electricity.
(3) By derogation from art. 88 par. (1) of the Law regarding electricity, the central electricity supplier calculates and submits for approval to the National Agency for Energy Regulation the regulated price of electricity supplied, within the deadlines established in the Calculating Methodology, approving and applying regulated energy prices supplied by the central electricity supplier, approved by the National Agency for Energy Regulation.
(4) When changing the central electricity supplier (in case of another legal entity’s designation as the central electricity supplier), the new designated central supplier will take over the rights and obligations of the previous central supplier, which derive from this law in relation to the eligible producers and district heating plants.