Score - Sustainable Construction in Rural and Fragile Areas for Energy efficiency

Guidelines for integrated territorial planning – PHOTOVOLTAIC

The construction of solar power plant with power of 5,16 kW at the surface of 39,4 square meters.
Electricity produced from photovoltaic grid system is being sold to the national grid and compensates for the electricity consumption from grid for the hardware and office equipment in the building. It is produced, per year, 7200 kWh. The investor must complete following conditions and obligations, while connecting to the object:

•  to build a low voltage cable plug from the existing low voltage grid to the low voltage measuring junction box,
•  on the object in low voltage measuring junction box, to regulate measuring location of power plant to 0,4 kV  voltage level, for the measurement of  transmitted electricity energy of the plant to the public distribution grid,
•  to create a connection from power plant or from inverter, to the low voltage measuring junction box,
•  in the low voltage measuring junction box, to arrange  a separation place for the manual separation of power  plant from public distribution grid,
•  to conclude easement contract with landowners, who’s land will be the route of new power lines,
•  obtain adequate administrative and project documentation.

Indication for the Bio-construction Action Plan

• We feel that there are fragmented and confusing rules for connecting solar power to the grid. There are at least nine steps needed in Slovenia, for connecting to the electricity grid.  This is: the application of project conditions, release of project conditions, making a project for obtaining building permission, project for implementation, application to release consent to connect, review the application for consent to connect, to release consent for connection, application for releasing agreement on the connection, releasing an application about connecting to the distribution grid, contract about supply and emitted electricity. This step seems clear at the first sight, however it is our opinion, that by some individual distribution companies while reviewing necessary procedures for connecting to the grid, there are arising great differences.
• Already by obtaining project terms the amount of possible costs of grid reinforcements varies.
• Variations also occur in the actual cost of connection.
• There are also deviations in waiting periods for obtaining necessary documentation. Certain electro-distribution companies does release all consents, contracts and certificates  in the longest permitted period, while other companies waiting period is significantly shorter.
• Introducing of clear and transparent rules that would apply for all electro-distribution companies would have positive effect not only on fast photovoltaic development in Slovenia, but will also have effect connection to the grid for business and private purposes.

Possible criteria for MED bio-housing quality certificate

• In Slovenia there is a Slovenian Photovoltaic Industry Association, which grants certificate of quality in the area of design and installation of photovoltaic systems. For obtaining a certificate some photovoltaic expertise knowledge’s, the field of standards, regulations, planning and dimensioning of solar power plants, design and also maintenance of solar power plants are being evaluated.
• We feel that certification should be possible for all participants on the photovoltaic market, as this may, based on quality services and products, distinguish serious and long-term partners from occasional participants on photovoltaic market. 

Case studies

−       Bistra hiša - Smart house (Martjanci, Slovenia)

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