Imp ementation Case:

Transcription

1 ZEMedS: Implementation

2 Implementation Case: IPCT Bonifazi, Recanati, Italy

3 General data 3 Name of the School Type of school IPCT Recanati High School High School Number of students Owner 277 public Location Year of construction Municipality of Recanati (MC), Italy Via di Santo Stefano, 1 Altitude: 293 m AMSL Sec. XVI

4 General data IPCT Virginio i i Bonifazi i High hschool, Municipality i of frecanati (MC), Italy Building typology Heated area (m 2 ) 4 3 floors building 3788 m 2 Heating degree days (base 18): 1982 (DPR 412/1993 base 20) Cooling degree days (base 26): xxxxxxx Site Urban Plane

5 General data IPCT Virginio i i Bonifazi i High School, Municipality i of Recanati (MC), Italy 5

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 Saturday: 08:00 to 13:00 and Monday till Friday: 15:00 to 17:00 Reduce Use: Monday till Friday: 08:00 to 13:00

7 Current Situation IPCT Virginio i i Bonifazi i High hschool, Municipality i of frecanati (MC), Italy 7 Building envelope: Walls Brick Wall 0.65 m U = W/m².K Building envelope: Roof U = W/m².K Building envelope: Groundfloor U = W/m².K Building envelope: Windows Mainly Single glazed Uw = 5.9 W/m².K Partial Replacement: Windows in the cloister replaced in 2011 with 2 layers 6/7 glasses (no air gap) 8 windows in the first floordouble glazed (partial, 2000)

8 Current Situation 8 Airtightness: No measurements Heating/Cooling: Ventilation: Radiators on external walls (without insulation) Monitoring System and Control system on 2 zones + gymnasium (since 2010) 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 DHW: Electric Boilers in some Toilettes 8.40 kw Cooking: No cooking Current final energy consumption kwh/m 2 conditioned area (from bills, metering etc.): * kwh/m² y for heating *12.22 kwh/m² y for electricity *Total = kwh/m² per year

9 Current Situation Equipment Age and Maintenance Needs 9 Lighting : Fluorescent lamp T5 : continuous replacement. Luminaires replaced in 2009 HVAC/ Boiler: Traditional lboiler, Natural lgas, 420 kw, installed in 2001 HVAC/Distribution Network: Piping update would be needed (no insulation) HVAC/other components HVAC/other components Windows Other Building Components Other Maintenance Needs Other Renovation Needs Structural Compliance to be verified

10 Current Situation 10 Health & Comfort Winter cold problems 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 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): 4 kwh/m².year Domestic Hot Water Consumption: 1 kwh/m².year Expected Total Consumption after successful ZEMedS Renovation: 30 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 76 %

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 76 %

15 Renewable Energy Source Potential 15 System Considerations and Recommendation Potential Production Photo Voltaic Flat Roof, south oriented panels System 16,6767 kwp (about 400 m2 of roof surface) + Tilt Roof, SSE oriented 20 kwp (about 160 m2) Solar Thermal for DHW RES Heat Pump kwh/m².year XX kwh/m².year XX kwh/m².year Others RES Potential RES Production Potential kwh/m².year

16 Recommended Measures 16 Controlled Natural Ventilation NOW Use and management Demand reduction Energy efficient systems Renewabl eenergy supply Building Manage ment System NZEB Windows Replacement PV System Heating: Functional Sectors and Level Sectors managed by BMS Lighting: Presence Control

17 Recommended Measures 17 Measure Why is recommended and what Windows Replacement Controlled Natural Ventilation Building Management System Photovoltaic System Replacement is highly needed for all the windows that are still single glass and should be considered d also for the once having double glass without air gaps Energy Saving and Comfort. Avoid wastes due to management. As windows need to be replaced, intervention cost can be limited. For reducing energy waste and optimizing usage efficinecy Further Electric Energy Production

18 Specific Features and Remarks 18 Specific Remarks 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 and statistical data are not directly accessible. They would be very useful in the dygnosis. Since it is an historical building, special care it is required in the envelope.

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.