Imp ementation Case:

Transcription

1 ZEMedS: Implementation

2 Implementation Case: IPSSART Varnelli, Cingoli, Italy

3 General data 3 Name of the School Type of school IPSSART Cingoli High School High School Number of students Owner 724 public Location Year of construction Municipality of Cingoli (MC), Italy Via Mazzini, i 3 Altitude: 631 m AMSL Sec. XVI s

4 General data IPSSART G. Varnelli lli High hschool, Municipality i of fcingoli (MC), Italy Building typology Heated area (m 2 ) 4 2 buildings 3 floors building 1508 m 2 Heating degree days : 2282 (DPR 412/1993 base 20) Cooling degree days (base 26): xxxxxxx Site Urban Mountain 2 1

5 General data IPSSART G. Varnelli High School, Municipality i of Cingoli (MC), Italy 5 Building 2 «Ex elementari» Building 1 Historical Building

6 Current Situation 6 High Priority: energy efficiency Renovation needs Building use Schedule for High school: Standard Use: From 9 th of September till 14 th of June Reduce Use: From 15 th of June till 12 th of August From 19 th of August till 6 th of September 2 nd, 3 rd, 4 th of January 12 th, 16 th of April 23 rd, 24 th, 27 th, 30 th, 31 st of December Standard Use: Monday till Firday: 07:00 to 13:00 Mondaay till Thrursday: 13:00 to 15:00 Reduce Use: Monday till Friday: 07:00 to 13:00

7 Current Situation IPSSART G. Varnelli lli High hschool, Municipality i of fcingoli (MC), Italy 7 Building envelope: Walls Brick Wall Building Ex elementare U = W/m².K Stone Wall Building Type 2 (900 mm) U = W/m².K Building envelope: Roof Roof without insulation and waterproofing U= W/m²K W/m².K Building envelope: Groundfloor Ground floor consists of concrete U = W/m².K Building envelope: Windows Aluminium Type 1 Uw = W/m².K Aluminium Type 1 Uw = W/m².K Wood Frame Uw = W/m².K New Windows in 2013 in Building Ex elementare Uw = 1.5 W/m².K

8 Current Situation 8 Airtightness: No measurements Heating/Cooling: Radiators on External Walls Air heaters in the Cooking Labs Monitoring System and Control system on 4 zones (Ex elementare + 3 levelsl old building) (since 2010) Ventilation: No mechanical Ventilation Ventilation by opening windows Lighting: Fluorescent tubes T5 controlled by users (2009) Appliances: Lab: PC, Projector, Printer Office: PC, Printer, Copy Machine Cooking Labs: Hoovers, Refrigeradors, Freezers DHW: Boiler (Heating with HVAC) 500 litres Cooking: Cooking Labs Current final energy consumption kwh/m 2 conditioned area (from bills, metering etc.): * kwh/m² y for heating *21.40 kwh/m² y for electricity *Total = kwh/m² per year

9 Current Situation 9 Equipment Age and Maintenance Needs Lighting : Fluorescent lamp T5 : continuous replacement. Luminaires replaced in 2009 HVAC/ Boiler: Condensation Boiler 440 kw in 2010 with Weather based dcontrol l(environmental based din the Gymnasium) HVAC/Distribution Network: Mainteinance for the piping HVAC/other components HVAC/other components Windows Other Building Components Roof maintenance Other Maintenance Needs Other Renovation Needs Structural Compliance works in

10 Current Situation 10 Health & Comfort No data Summer comfort: No data Interior air quality: No data Visual comfort: No data Running Contracts and Management Running cost: Energy: no data Water: no data Maintenance: no data Energy Supply Contract ESCO, contract expiring in 2019 Energy Management Contract ESCO, contract expiring in 2019 Building Maintenance Manageddirectly by the Province technical office

11 NZEB Renovation ZEMedS Goals: Requeriment 1: C PE Prod RES 0 Primary energy consumption yearly (heating, cooling, ventillation, DHW and lighting) is produced by local renewable energies. Requeriment 2: C FE 25 kwh/m2 y FE consumption yearly (heating, cooling, ventillation and lighting) per conditioned area Requeriment 3: Indoor air quality guaranteed (CO ppm) and temperature above 28ºC 40 hours yearly during occupancy National factors for conversion in energy and CO 2 have been taken into account (data 2014). 11 Primary Energy from non renewable energy sources covered by renewable energy Final energy Indoor Environmental consumption (all uses Overheating limited to Quality (IEQ) is except DHW & cooking) guaranteed 0 kwh/m².year (annual balance) C FE 25 kwh/m².year 40 hours over 28ºC annually CO ppm

12 NZEB Renovation Status 12 Actual status refering to the the foreseen ZEMedS Renovation Process Diagnostic /Current Planning Design situation Companies consulting Works Reception of works Use and maintenance Diagnostic/ Current Situtation: A preliminary energy audit developed by the company managing the Energy Supply and HVAC management was developed in A further investigation is needed for: Detailing actual energy behavior through energy simulation Identifying actual comfort conditions Defining the actual energy saving potential of a set of possible measures Considering also electrical consumption

13 Energy Saving Potential 13 Actual Final Energy Consumption (heating, cooling, ventillation and lighting) Consumption by Bills Natural Gas: nm3/year = kwh/m².year Electricity: kwh/m².year Other Fuel: 0 kwh/m².year Total: kwh/m².year Estimation: Specific Electricity Consumption (not including Lighting): 11 kwh/m².year Domestic Hot Water Consumption: 1 kwh/m².year Expected Total Consumption after successful ZEMedS Renovation: 37 kwh/m².year ZEMedS Target Final energy consumption (all uses except DHW & cooking) C FE 25 kwh/m².year Heating/Cooling and Ventilation: C HVAC 20 kwh/m².year Lighting: Cligh 5 kwh/m².year Energy Saving Potential (heating, cooling, ventillation and lighting) Theoretical Saving kwh/m².year Theoretical Gain 71 %

14 Energy Saving Potential 14 Actual Final Energy Consumption (heating, cooling, ventillation and lighting) Consumption by Bills Natural Gas: nm3/year = kwh/year Electricity: kwh/year Other Fuel: 0 kwh/year Total: kwh/year Estimation: Specific Electricity Consumption (not including Lighting): kwh/year Domestic Hot Water Consumption: kwh/year Expected Total Consumption after successful ZEMedS Renovation: kwh/year ZEMedS Target Final energy consumption (all uses except DHW & cooking) C FE 25 kwh/m².year Heating/Cooling and Ventilation: C HVAC 20 kwh/m².year Lighting: Cligh 5 kwh/m².year Energy Saving Potential (heating, cooling, ventillation and lighting) Theoretical Saving kwh/year Theoretical Gain 71 %

15 Renewable Energy Source Potential 15 System Considerations and Recommendation Potential Production Photo Voltaic Tilt Roof, South West Oriented System 37.5 kwp (about 300 m2 of roof surface) kwh/m².year Solar Thermal for DHW RES Heat Pump XX kwh/m².year XX kwh/m².year Others RES Potential RES Production Potential kwh/m².year

16 Recommended Measures 16 Controlled Natural Ventilation in (1) NOW Use and management Demand reduction Energy efficient systems Renewabl eenergy supply Building Manage ment System NZEB Windows Replacement in (1) External Insulation in (2) Insulation in the Roof in (2) PV System Building Management System

17 Recommended Measures 17 Measure Why is recommended and what External Insulation in Ex elementare (2) Insulation in the Roof in Ex elementare (2) Windows in the Old Building (1) «Ex elementare» is a 60 s building, previous to energy laws and an external insulation i would be useful Include insulation in the roof would help Windows in the Old Building (1) needs to be replaced with high efficiency ones Controlled Natural Since windows have to be replaced, controlled Ventilation in the Old ventilation (actuators in the windows) should be Building (1) considered too. Building Management Complete building Monitoring and automated actuation System of Lighting g Systems and Heating for low level zones will reduce energy wastes and increase usage efficiency

18 Specific Features and Remarks 18 Specific Remarks There is a unique boiler for the 2 buidlings, recently replaced. In the future, 2 separate boilers for each building should be considered. In 2013 in Building Ex elementare (2) the windows were replaced with a product Uw = 1.5 W/m2K Building (1) is an historical building, special care it is required in the envelope. Since 2011 a monitoring system is installed, mainly managed by the ESCO which has the energy management contract. These data are accessible in real time by the Province of Macerata but historical i and statistical ti ti data are not directly accessible. They would be very useful in the dygnosis.

19 Funding Opportunities 19 Relevant Information: The on going contract with an ESCO is ongoing until In order to define how to proceed, new contract models are being explored, trying to maximize the possibility of investments in building renovation for energy performance. Funding Potential: Self funding: to be assessed Regional Initiatives: DGR Regional Government Criteria for getting Ministerial Fund 3 year Planning for School Buildings (art.10 Law 128/2013, DM , also known as IEB loan decree ERDF Thematic Objective 4 Action 13.1 Promozione dell eco efficienza e riduzione di consumi di energia primaria negli edifici e strutture pubbliche National Funding: European Direct Funding: The Province of Macerata was informed through the ZEMEDs project about the possibility of preparing an ELENA proposal, and it is assessing it.