Over the last few years, the use of Renewable Energy Sources (RES) has become a major concern for the people of the modern world. That is happening mainly because, in contrast to fossil fuels, renewable energy sources have infinity of sustainability and because they are environmentally friendly, as they do not produce wastes and residues. As far as Greece is concerned, there is a specific directive which requires that, up until year 2020, the energy consumption from renewable sources consists at least 20% of total energy consumption. What has actually been happening in Greece so far?
According to data presented by the Secretary General of the Ministry of Environment and Energy, Greece is an energy intensive country, consuming 2,1 tons of oil per capita whereas, in the rest of Europe, the average consumption is less than 1,8. The cost of energy is extremely high, estimated between 25 and 30 billion euros and reaching 17% of the GDP, which corresponds to 2.500 euros per capita, as stressed by the Secretary General.
One of the most effective solution to the aforementioned is net metering or autoproduction with energy compensation, which is widely known in the USA.
Simply put: The photovoltaic system owners consume, generate and add energy to the grid, all happening at the same time. This is how the energy compensation happens. The term «net» comes from the fact that the billing mechanism is based on the difference between the produced and consumed energy during a specific period of time. The development of the photovoltaic systems used by autoproducers was adopted by the Ministerial Decision as described in the Government Gazette, Issue B’3583/31.12.2014, regarding the installation of stand-alone photovoltaic systems with energy compensation.
Where and how it can be applied
Interconnected energy system (mainland and interconnected islands)
a) every photovoltaic system can produce power that reaches up to 20 kilowatt (kWp) or up to 50% of the power purchase agreement (measured in kVA), in case it exceeds 20 kWp.
b) When it comes to legal, private or public sector entities seeking charitable or public interest purposes, either nationwide or within local range, the power generated by each photovoltaic system can reach up to 100% of the agreed amount of power generated.
c) In each case, the maximum power generated by a photovoltaic system installed within the Ministerial Order framework, cannot exceed the limit of 500kWp.
a) In non-interconnected islands, the power generated by photovoltaic systems can reach up to 10kWp and, especially on Crete, up to 20kWp or up to 50% of the agreed amount of power generated by the installation (in kVA), as long as it does not exceed 10kWp or 20kWp for Crete.
b) When it comes to legal, private or public sector entities seeking charitable or public interest purposes,either nationwide or within local range, the power generated by each photovoltaic system can reach up to 100% of the agreed amount of power generated.
c) In each case, the maximum power generated by a photovoltaic system installed within the Ministerial Order framework concerning Non-interconnected Islands, cannot exceed the limit of 50kWp for the region of Crete and 20kWp for the rest of the Non-interconnected Islands.
Which are the main terms and conditions for the installation of autoproduction photovoltaic systems and energy compensation?
- A permanent and active power supply of the installation
- The photovoltaic system is assigned exclusively to one consumption meter, i.e. the meter of the installation powered by it
- The photovoltaic system is installed in the same or adjacent area with the consumption facility to which it is assigned.No energy compensation for energy consumption of the same natural person or legal entity in other locations is allowed ( so called virtual net metering )
- The person interested in installing a photovoltaic system is legally entitled to use the area in which the system is installed
- The person interested in installing a photovoltaic system has paid off any debt to their electricity supplier (or has committed to a debt arrangement scheme)
Where can someone apply for a connection and which are the supporting documents?
For installations connected to the LV station, the connection request is submitted to the pertinent local office of HEDNO. For installations connected to the MV station, the connection request is submitted to the headquarters of the pertinent Regional Directory of HEDNO when it concerns a connection to the Interconnected Energy System and to the pertinent regional unit of HEDNO (HEDNO Region) when it concerns a connection to the non-interconnected islands.
Along with the connection request, documents and data mentioned in the application form should be submitted ( more information is available on HEDNO’s web page http://www.deddie.gr/ )
The connection request is officially registered only if the data and the supporting documents are complete and aptly filled out.
A technical analysis conducted by a specialized engineer and the type of the equipment to be installed are the main prerequisites for all applicants.
What is the connection cost for an autoproduction photovoltaic system to the LV station?
For a photovoltaic system of load power up to 55kWp, the connection fee is 300€ if the replacement of the meter is not necessary, otherwise the connection fee is 370€ for areas with single phase electric power or 390€ for areas with three phase electric power. When the power generated by the photovoltaic system is more than 55kWp and up to 100kWp, the connection fee is 450 € and connection fee to the Medium Voltage network is 650€. The aforementioned fees include the cost of the meter checking (see questions 14 and 15), as well as the cost of the voltage transformers, if necessary, and apply only in cases where network supply operations are not required for the connection.
Where can autoproducers install the photovoltaic energy systems?
The photovoltaic systems can be installed on buildings, on the ground or on other constructions, including those of the Primary Sector (barns, farms, etc.) according to the Urban Planning Legislation. The systems shall be installed in the same area with the consumption facilities they power or in an adjacent area.
Who can install an autoproduction photovoltaic system with energy compensation?
All natural persons (entities or not) and legal entities of public and private law, owning or being legally entitled to use the site where the photovoltaic systems are about to be installed (through leasing, concession etc.) and obtaining a written consent of the owner, have the right to proceed to the installation. In case of a shared or jointly-owned building, it is allowed to install one or more photovoltaic systems, each one of them being assigned exclusively to one meter. The right to the installment belongs to the owners of the horizontal property or anyone legally entitled to use it, after being granted the use of the shared or the jointly-owned area or part of it by the rest of the co-owners. In order to connect, the owners of the horizontal properties are represented by the building manager. The consent of all co-owners of the building is the main prerequisite and arecord of the unanimous decision of the general assembly or a written consent of the co-owners has to be presented.