cRRescendo Newsletter (winter 2010)

 

Ajaccio: realisation well on track

Ajaccio, the ancient capital of Corsica with 60,000 inhabitants, is facing the challenges of renewing the urban developments dating from the 1960's as well as renovating buildings in the historic centre. Since 2002, a significant urban renewal program was started by the City of Ajaccio in partnership with ADEME.
In cRRescendo, 10,000 people will be affected through energy-conscious refurbishment of 419 apartments of which 5 are part of the protected historic centre of this medieval town. A new block with 8 apartments will be built in the historic centre, as well as a new public services building outside the old city centre.

Demolition and reconstruction of a block of council flats made of 8 apartments:
In the new contract we have only kept one project for a complete building renovation in the old centre with solar systems (compared to 10 buildings in the first contract): We have already researched the feasibility of putting up solar systems on 5 building roofs in the old district of the town, but unfortunately, it has proved impossible for 2 reasons:

  • for the lack of sunshine (narrow streets, with high buildings).
  • Being in a protected urban district (unsightly panels on rooftops).
Building a public office building
We have chosen a specific form of architectural "contest": 3 teams have been working with us on the programme and on finding technical solutions for a period of 3 months. The office building will be built in 2011.

Winning submission:

Social Landlord: Erilia
The housing stock concerned by this action is located within the urban renovation zone, and is on track to completion. It is made up of 2 buildings (B and C). Rehabilitation work has been completed and solar panels have been installed on building B. Confidence tests are under way. Works are still being carried out on building C. They should be completed by spring 2011. Although, we give special attention to the rehabilitation of the buildings themselves, the outside has not been forgotten as the landscaping work is almost finished.

The housing stock Saint Paul
Two buildings are undergoing rehabilitation work. Work is well under way and should be finished by the beginning of 2011. Monitoring devices have been installed. As for the above, special care has been taken for the outside landscaping work.

Pietralba
In this situation it was also decided to change the watertightness of the roofing before the installation of the solar systems and radiators. The accommodations are currently undergoing rehabilitation. The full work load should be done by July 2012, but solar cells will be in place by the 1st of August 2011.

Rehabilitation work is under way, although greatly delayed due to the roof surface being too weak to support solar panels. Therefore it had to be reinforced and water tightness improved. There is a chance that we will pass cRRescendo's deadline for the rehabilitation work, but solar panels should be in place.

Building schedule

RES: Demonstration
A surface of 333 m2 of solar collectors (see table below) will be installed on social housing buildings and will produce hot water for 223 apartments.

Buildings nameNumber of buildingsSolar collector surface (m2)Energy production (kWh/year)CO2 emissions reduction (TCO2/year)
St Paul29351 5528,07
Pietralba 21014284 49013,22
Monte e Mare29873 46111,49
Table: Solar collector characteristics

 

Misterbianco: start-up

As an associated community, the Town Council of Misterbianco presents herein the state of the art of the four actions foreseen by the "cRRescendo project" in the town, which concern, by order, the following themes:

A) Realisation of PV and Thermal solar plants in public structures:
instalment of twelve solar plants (6 Photo-Voltaic and 6 Thermal Solar Plants) in six different public schools, for renewable energy production.
B) Citizens' sensitisation:
systematic publication in the monthly local newspaper "Misterbianco in Comune". A page dedicated to renewable energies (at least, twelve new pages will be published); periodical TV and Radio programmes on local channels for the dissemination of the project and the diffusion of themes concerning energy (at least, two more TV and Radio programmes for the next year); insertion on the Municipality Web portal of a specific section dedicated to the project (in course of completion).
C) Interventions towards families:
one specific analytical study on the energetic behaviour of 150 families and the buildings where they are living into the individualised municipal "target area‟; four specific zoning panels which will recall the attention of citizens upon the intervention typology and which will also be useful for dissemination of the same action in the target zone.
D) Interventions for saving energy in public lighting:
one specific audit report upon quantity, quality and state of using of electrical power centres of public lighting plants, through a collection of their electrical parameters.

Below, a resume is shown of what has been in Action A so far. Other actions will be reported in a following Newsletter.

Action A - Realisation of PV and Thermal solar plants in public structures
The Municipality of Misterbianco has co-financed, together with the Sicilian Region or the Italian Ministry for the Environment, the instalment of 9 solar plants (4 Photo-Voltaic and 5 Thermal Solar Plants). In the following table the schools where thermal solar and/or PV plants have been installed for energy production are shown.

The PV plants have already been made, while the needed procedures to get the authorisation for connecting the produced energy to the electric grid are still running. The solar collector plants for the production of hot water (Thermal Solar, TS) have been projected and financed through a national contest of the Italian Ministry for the Environment. The choice of the sites for the plants instalment were chosen to get a PV and/or TS plant for every school building in the Municipality territory, so that the interest towards these new technologies is stimulated. In the following table we have reported the dates of design, closure of the works and starting of production for the above mentioned plants.
Through those plants we have a production of energy allowing a reduction of CO2 in the atmosphere, due to the reduced energy consumption from non-renewable sources.
The costs for the achievement of plants are partially on charge of the Municipality, in fact a part of the total funds come from national or regional financing.

These plants, apart from one's own energy production, also allow the creation of a sensitisation campaign for school pupils and, in order to make that, we will proceed with the accomplishment of the following sub-actions:
A.1. - Endowment of specific displays at the interior part of the school buildings which will show the plants production and the CO2 saving;

A.2. - Giving to each school a training package of a model of solar house, solar oven and other different kind tests;


A.3. - Activation of working groups for online training paths and participation to the annual contest promoted by ENEL (http://energiaingioco.enel.it), the Italian company for electric energy.

At the end of June 2010 teachers in local schools have been trained, so that from September 2010 the project can be launched at the schools. Each school will be provided through its own resources with the model of solar house. The teachers' training will be enhanced through specialised courses that will be funded with further regional resources.

 

cRRescendo: data-monitoring so far

The technical monitoring reporting format for collected aggregated data from the communities was completed. The idea behind this is that all communities give enough information alongside the monitoring data in order to interpret the data correctly and in order to compare them. For example: degree day definition used, references for primary energy factors used, description of data quality, monitoring fraction etc. In accordance with the cRRescendo methodology that was developed.
Final monitoring plans have not been made and collected. Instead, we kept in touch with the communities to guard their progress and discuss any uncertainties regarding monitoring requirements. The economic crisis is in some cases also felt in the monitoring area. Some municipalities hesitate to spend budget on monitoring (even though they pay only a portion).

A summary of the monitoring progress per community and some results collected per community so far is shown in the table below. This is followed by a global overview of the progress of gathering monitoring data. It should be noted that the column 'Commissioned' is not up to date. The commissioning reports from this reporting round have not been processed yet.

In Ajaccio, reference monitoring of one of the old apartment buildings (BEST 3) has been started in Februari 2010 and is expected to end in the beginning of 2011. For the public service building (BEST 4) reference monitoring has been completed. Because this is a new building reference monitoring has been based on a comparable building. All other reference monitoring data still has to be delivered. An overview of the reference data gathered so far is shown below. No buildings are finished yet. It is expected that by August 2011, all buildings and installations will be finished and that monitoring will have just started.

In Almere, monitoring of single family dwellings has started. Several discussions have taken place on how to improve the response from inhabitants, which was rather low (few %). After sending more letters and even have students going door to door, the response increased to around 10%. It was decided to collect data from underground metering stations in addition to data from the occupants themselves. A plan for detailed monitoring of 20 homes was made in addition to the global monitoring required by cRRescendo. This is scheduled to start in October 2010. The large scale PV-plant (solar island) has been built an is monitored by NUON.

In Milton Keynes, all buildings have been built. The EsCo, Thamesway will provide the monitoring data. Meetings and discussions have taken place in the UK, with backup of Ecofys on the EU requirements, to sort out in what form the data will be supplied. A first batch of monthly data on apartment level has now been received. Of the apartments, only two months data were supplied, starting April 2010. The buildings were commissioned before then. However, many apartments have been empty for a long time, which makes it less useful to collect data. The CHP-plant has been commissioned. CHP-data and data on cooling consumption of 'B3.2 Commercial' have been received, but could not be checked and processed in time for this report.

Viladecans: after the meeting with EU officer Kotoronaros in May 2010, discussions with Viladecans have lead to the decision to start monitoring all flows required by the EU, including the monitoring of cooling consumption. However, it will take until september 2010 before this can get started. By then, data will be collected manually twice a month, for the buildings from BEST tables B through E (La Pineda, Can Xic, Camp Futbol, Pablo Picasso). An overview of flows to be collected is given below.

Regarding Best Table A and F, those buildings will be finished (they are non existing buildings) by the end of the project so monitoring will be carried out the year after the end of the project, the cost will be assumed by Viladecans (without any subsidy) and the partner will provide the obtained data to the commission.

In addition, from July 2010 to December 2010, 6 unemployed people will be analysing water, gas and electricity consumption of all the public buildings of Viladecans Municipality. Collected data will include electricity and heat consumption of Day Care Center La Piñeda (BEST table B) and Cultural Centre Can Xic (BEST table C) and can be used for cRRescendo monitoring as well.

 



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