Statements of successfull STO-makers
Our common target is to tackle all the challenges and take advantage of the opportunities to achieve a real sustainability, both for the municipal administration and the neighbors of our municipality. In this point, Solar Thermal Energy is a very important potential for our municipality. The Solar Thermal Obligation will contribute to regulate, guide and enhance the development of these systems, increasing the use of energy coming from renewable resources and reducing CO2 emissions.

Mrs. Adela Martínez Cachá - Deputy Mayor for Environment and Urban Quality at the City Council of Murcia (SP). Vice-President of the Local Agency for Energy and Climate Change  of Murcia.

Today, energy is a part of everyday life! As leaders in our community, we have the obligation to set an example of good practice in the areas of energy saving and renewable energy use, so that citizens would acknowledge the importance of each gesture intended to contribute to the health of the planet.

Eng. Lucian ILIESCU – Mayor of Giurgiu Municipality (RO)
“Solar thermal has enormous potential and low costs. Our challenge in Lazio is to convince people of the advantages deriving from its use.”

Mr. Filiberto Zaratti - Regional Minister for Environment and Cooperation among Peoples, Lazio Region (IT)

Solar energy will be
the “sun of energy”!

Professor Eduardo de Oliveira Fernandes - Secretary of State for Environment (Portuguese Government, 1984-1985), Secretary of State to the Minister of Economy for Energy and Innovation (Portuguese Government, 2001-2002), former Chairman of the Commission for Buildings Thermal Regulations at the CSOPT  (Portuguese Ministry of Public Works, 2002-2006)

Our justifiably ambitious climate protection goals are reachable. However, this needs active combatants. With the provided regulations we found a passable way for on one hand making an effective contribution to reducing CO2-emmissions and on the other hand not overburden the single citizen. People do follow, because they feel, that we have to act for protecting the climate.

Tanja Gönner - Minister for the Environment of the State of Baden-Württemberg (DE)

STO Database

Detail View:Decret d’Ecoeficiencia (Catalunya, Spain).

Region of Catalunya

Catalunya Regional Administration.


The Decree aims at regulating the criteria for the sustainability of buildings in Catalonia, promote social consciousness in the way to conceive, design, build and use buildings in a sustainable way. Four action fields have been established within the decree: water, energy (including solar thermal), materials, construction methods and waste.

Ordinance Facts
Ordinance titleDecret d'Ecoeficiencia
Type of ordinancesolar thermal ordinance
Starting dateAdopted in February 2006 and entered into force in August 2006.
Geographical areaRegion of Catalonia.
No. of inhabitants, areaabout 7 millions; 32,000 km2

New and existing buildings subject to major renovations (only building facades are left); old buildings which use will be changed. Building types: residential, collective residential (hotels, guesthouses, retirement residences, hostels), educational, health-care and sport centers.

Technology priorities

Solar thermal.

Size of the solar heating system requiredThe hot water demand is based on fixed figures, according to the building use and to inhabitants.
Alternative measuresIt is allowed to apply other technologies (RES, cogeneration and heat recovery).
Executing authorityThe Catalan Government.
Execution mechanism

There were external (national and international) forces (Ley de Ordenación de la Edificiación and the Kyoto Protocol) and internal forces (by the end of 2006, 55 solar ordinances had entered into force in Catalonia as local initiatives) that encourage the Catalan Government implementing the Decree.

Development and Implementation

The building stock in Catalonia is responsible of 40% of CO2 emissions. Additionally, there is a trend to increase the primary energy consumption from non renewable sources in a great number of buildings.
Increase of water consumption due to the low resource price.
Resistance to apply strategies for a rational waste management in the construction sector.


Technical and innovation development, decrease of expenses on fossil fuels, avoidance of CO2 emissions, jobs creation and improvement on living quality.


It is a regional initiative, born as a consequence of following international and national initiatives:
- The framework of the Kyoto Protocol
- The National law 38/1999, November 5th, the Town Planning and development Act (Ley de Ordenación de la Edificación), related to building requirements that ensure environment protection


Six months were needed for the Decree to come into force.

Quality schemes productyes
Quality schemes installationno
Quality schemes otheryes
Flanking measures

Awareness campaign on boiler renovations.
The Economy & Finance Department issues certified licenses to installers.
Training courses on energy audits and energy management.


Not clear yet. Probably quite similar to the procedures used in Barcelona Ordinance, since checks are carried out at municipal level.

Sanctioning feesProbably similar to the Barcelona Ordinance.
Costs for implementing

No cost borne by the administration side because the solar ordinance is embedded in the Decret d’Ecoeficiencia.

Monitoring and Results

ICAEN is monitoring the Collector surface installed. Results are not yet available.

Quantitative results

According to the Catalonian Energy Plan, it is expected to install 1,250,000 m2 of solar thermal by 2015.
Results at local level: 120,000 m2 by 2006.

Costs borne by the enduser0,32-0,41% increase per m² built.
Effects on other sectors

Not defined.


Not defined.

Future outlook

Not defined.

Lessons learned
Barriers faced and overcome

Not available yet. More time is required to test the Decree.

Success factors

Not available yet. More time is required to test the Decree.

Potential for improvement

Some measures are: simplify the legislative framework, better controlling and monitoring measures, capacity building of professionals, awareness raising.


Not available yet. More time is required to test the Decree.

This STO was provided by:
Downloads and Links
Copyright 2008 by Ambiente Italia  | Terms Of Use | Privacy Statement

Nordstrom Promo Code