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Lisbon

Pilot Actions

In the city of Lisbon the solar Action Plan has defined 5 short-term measures, all of them identified as priority Pilot Actions that will be implemented within POLIS project :

Pilot Action 1 : Evaluation of solar potential in Lisbon at parish level

Background : Although an initial assessment has been done to extrapolate national targets for micro-production and solar thermal systems to the city of Lisbon, the definition of more specific targets for the adoption of solar technologies has to take into account the actual urban potential based on existing conditions, which is unknown yet.

Description : Realistic assessment of the solar potential of Lisbon built environment, based on estimates of the net available roof area and solar technologies implementation ratios (e.g. solar thermal vs. PV). Geographical disaggregation will go down to the parish level, to which pertain well defined boundaries within the city. A top down approach will be followed (from technical to market potential) for both solar technologies, considered independently. Scenarios of different mixes between solar thermal and solar photovoltaic technologies will be then constructed based on the individual potentials and on policy considerations.
- For existing buildings the solar potential will be estimated in terms of technical potential (net available area for hosting solar facilities), technological potential (estimate of installable capacity and annual energy yield according to different technology implementation scenarios), economic potential (obtained from applying scenarios of willingness to pay to the technological potential estimates) and market potential (obtained from applying scenarios of affordability to the economic potential estimates).
- For new buildings, potential estimation departs from existing urban planning instruments for estimating technical potential, while applying the same methodology and scenarios as described for existing buildings when determining technological, economic and market potentials. Scenarios will be further exploited by introducing potential modifications to existing urban planning instruments. Special attention will be given to the instruments that are currently under revision.
The information needed for developing this Pilot Action are data on existing building stock, meteorological data and 3D city models.

Pilot Action 2 : Definition of goals for solar technologies adoption (thermal & photovoltaic)

Background : The detailed assessment of the solar potential carried out within POLIS project will allow defining coherent targets, considering not only the technical, but also the technological, economical and market potential. The targets are to be set within the National Action Plan for Energy Efficiency and at the local level within the Energy-Environment Strategy and the Covenant of Mayors

Description : Based on the evaluation of solar potential in Lisbon at parish level (Pilot Action 1), the policy decision-making process will be assisted so to establish targets for the adoption of solar technologies in Lisbon. Potentials will be estimated according to different policy scenarios, where municipal-level intervention scenarios determine the policy options available. A comparative assessment of these scenarios will be provided to municipal decision-makers following the methodology and indicators system developed by Rodrigues (2009), adapted to the implied regional conditions. The final targets will be established based on the policy scenario selected by the municipality, in accordance with the National Action Plan for Energy Efficiency and (at the local level) within the Energy-Environment Strategy and the Covenant of Mayors.
Another result of the comparative assessment of the different policy scenarios will be an Observation System for Solar Energy Policy in Lisbon. The information needed for developing this Pilot Action are the results of Pilot Action 1.

Pilot Action 3 : Evaluation of potential to integrate solar technologies in Boavista neighbourhood

Background : The Boavista Neighbourhood is a social housing area that is presently conducting an operation to refurbish and revitalize the area within an Eco Neighbourhood programme, financed by a national funding programme. Within this programme it is foreseen the adoption of solar technologies in the neighbourhood. This Pilot Action allows to identify the best urban design for the area and the preference location for the solar systems.

Description : Analysis of the existing urban rehabilitation plan for the Boavista neighbourhood regarding its solar integration potential. Optimisation of the existing urban plan so to maximise the potential for solar integration. Determination of preferential integration sites. The analysis of potentials will follow a building-based approach : Potentials will be estimated by detailed simulation according to the existing urban plans and other specific implementation conditions (e.g. dedicated public funding).
Urban design barriers will be identified and corrective measures proposed, after which new calculations of solar potentials will be conducted. The information needed for developing this Pilot Action are urban rehabilitation plans detailed at building level.

Pilot Action 4 : Identification of the solar potential of the built heritage of the Lisbon Municipality at the level of the service buildings supplied with medium voltage

Background : Within the micro-generation framework the Lisbon Municipality has already installed more then 20 PV systems in schools and social housing buildings. Once the targets for solar technologies adoption are set, the municipality should be able to set the example and adopt solar technologies in the built patrimony, considering the installation at the most advantageous sites.

Description : Analysis of the solar economic potential of the built heritage of the Lisbon Municipality at the level of the service buildings supplied with medium voltage. The analysis will follow a building-based approach based on an inventory of relevant buildings :
- Technical and technological potentials will be estimated by detailed simulation according to the existing urban implantation and other specific implementation conditions (e.g. historical area constraints).
- Economic potential will be determined taking into consideration existing and foreseen public promotion instruments (national level).
The information needed for developing this Pilot Action are inventory and implantation details of relevant buildings, domestic heating water consumption profile and HVAC system. Software simulation tools will be used for establishing the yearly yield of installable capacity : PVSyst 5.0 for PV technologies and SOLTERM for solar thermal technologies.

Pilot Action 5 : Training workshops for professionals on solar technologies and solar concepts of urban planning

Background : The effective adoption of solar technologies at the municipal level actively depends on its technicians availability to perceive the added value of the technologies and be able to integrate these in the most profitable way. Such a step comprehends a first approach to the technologies basics, the adoption process, the integration possibilities, etc. This will enable Municipality technicians and private professionals to achieve competences in these areas and actively promote Lisbon Solar Action Plan deployment.

Description : Two training workshops on solar technologies and its integration in the architectural and urban design processes targeted at Lisbon Municipality technicians dedicated to architecture, engineering and urban planning activities.

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