Electricity generation is subject to licensing and is carried out in a competitive environment. Electricity generation is divided into two regimes: ordinary regime and special regime. Special regime relates to the generation of electricity from endogenous and other renewable sources (except large hydropower plants). Special regime generation is subject to different licensing requirements and benefits from special tariffs. A last recourse supplier, currently EDP Serviço Universal, is obliged to purchase electricity generated under the Portuguese special regime. The ordinary regime covers all other sources, including large hydropower plants.
Ordinary Regime
The principle of centralised planning of generation plants has been abandoned in the New Electricity Framework. Initiatives to construct and operate new plants lie with market participants, and the Portuguese government will only intervene to supplement private initiatives, cover market failures or ensure electricity supply.
On June 30, 2007, all of the PPAs executed by EDP under the Old Electricity Framework have been terminated early pursuant to Decree Law 240/2004, and accordingly the power facilities that generated electricity for those agreements are now operated under market conditions.
In addition, EDP has regularised the status of the water concessions for its hydropower plants in accordance with Decree-Law no. 226-A/2007, of May 31. As a result, EDP has retained the rights to operate 26 hydropower plants under market conditions (with 4,094 MW of installed capacity) beginning on the expiration dates previously provided in their respective PPAs until on average, 2047.
Special Regime
Special regime generation is primarily governed by Decree-Law 189/88 of May 27, and the amendments thereto (including Decree-Law no. 312/2001, of 10 December and, in respect of tariffs, Decree-Law no. 168/99, of May 18, Decree-Law no. 339-C/2001, of December 29, Decree-Law no. 33A/2005, of February 16, and Decree-Law no. 225/2007 of May 31) (“Decree-Law 189/88”). However, special regime generation is also affected by Decree-Law 29/2006 and Decree-Law 172/2006, insofar as these relate to the SEN.
The statutory and regulatory regime applicable to the generation of renewable electricity differs from that applicable to the generation of electricity from other non-renewable sources in relation to licenses, tariffs and electricity sale rights.
The Portuguese special regime provides that qualified special regime operators may sell electricity to last recourse suppliers that are required to purchase electricity under the special regime pursuant to article 55 of Decree-Law 172/2006, of February 15. The right of the special regime operator, and the correspondent obligation of the last recourse supplier, do not, however, limit the ability of special regime operators to sell electricity to other suppliers of electricity operating in the market. When the special regime operator sells the electricity to the last recourse supplier, it will receive an amount corresponding to the tariff applicable to special regime generation for the electricity sold.