Energy analyses of 16 public buildings and recommendations for development possibilities

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András Bogdán
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1 Energy analyses of 16 public buildings and recommendations for development possibilities György MÁRTON

2 METHODOLOGY OF ENERGY ANALYSIS Tasks to be elaborated: 1. Compiling the set of operative regulations of the Hungarian side 2. Defining questions and scope of required data for the joint questionnaire of building selections 3. Surveying public buildings of involved 9 municipalities to select 16 buildings for performance analyses 4. Working on joint questionnaire of performance analyses 5. Analysing 16 selected buildings' performance in details 6. Expert taking part in 16 site visits to make on site measurements and checks about insulation, building engineering, location 7. Preparing 16 project fiches to describe the necessary investments and match them with potential funding sources

3 SELECTION OF PUBLIC BUILDINGS Data analysis Village of Magyarszék Institution Floorplace (m2) Airspace (m3) In case of gas heating: annual amount of gas [m3] amount of heating [GJ] heating costs [HUF] TOTAL [HUF] amount of [kwh] Anual costs [HUF] TOTAL [HUF] Heating consumption [GJ/m2] Electricity consumption [kwh/m2] gas TOTAL,- and Secondary Schools: Magyarszéki Általános Iskola , ,36 8, Nursery schools: Magyarszéki Óvoda , ,32 18, Social Institutions: Nyugdíjasház ,00 12, Sport, culture: Sportöltöző és kiállító tér , ,14 12, Mayor's Office: Faluház és polgármesteri hivatal , ,53 17, Others: Ifjúsági szállás , ,24 5, Német Klub , ,22 5,

4 SELECTION OF PUBLIC BUILDINGS Data analysis City of Mohács Institution Floorplace (m2) Airspace (m3) In case of gas heating: annual amount of gas [m3] amount of heating [GJ] heating costs [HUF] TOTAL [HUF] amount of [kwh] Anual costs [HUF] TOTAL [HUF] Heating consumption [GJ/m2] Electricity consumption [kwh/m2] gas TOTAL Nursery schools: Brodarics tér ,59 3, Szőlőhegy, Bári út ,49 9, Rókus u ,58 11, Eötvös u ,54 19, Crèches: Bölcsőde, Dózsa Gy. U ,40 26, Social Institutions: Pándy Kálmán Otthon ,60 14, Sport, culture: Kórház u. létesítmény ,34 11, Újvárosi létesítmény ,61 45, Csónakház ,42 25, Ifjúsági Centrum ,30 15, Mohácsi Jenő Könyvtár ,40 14, MTE, Kórház u. 11. Sportpálya ,43 12, Public health: Egészségügyi Alapellátó Intézmény ,00 0, ESZI, Gólya u ,57 46, Mayor's Office: Főépület ,68 57, Others: Duna Irodaház ,34 16, Közhasznú Kiszolgáló Épület, Baross u ,18 7, Közétkeztetési Ellátó Szervezet ,32 55,

5 SELECTION OF PUBLIC BUILDINGS 16 public buildings: Institution Floorplace (m2) Airspace (m3) In case of gas heating: annual amount of gas [m3] amount of heating [GJ] heating costs [HUF] TOTAL [HUF] amount of [kwh] Anual costs [HUF] TOTAL [HUF] Heating consumption [GJ/m2] Electricity consumption [kwh/m2] gas TOTAL Művelődési ház (Kadarkút) Faluház és polgármesteri hivatal (Magyarszék) Hársvirág Óvoda Mázai Telephelye (Máza) Pándy Kálmán Otthon (Mohács) MTE, Kórház u. 11. Sportpálya (Mohács) ESZI, Gólya u. 42. (Mohács) Árpád Fejedelem Általános Iskola (Nagyatád) Polgármesteri Hivatal (Nagyatád) Irodaház Baross G. u 1 (Nagyatád) Alapszolgáltatási központ + könyvtár + városgazdálkodás (Nagybajom) Sportcsarnok (Nagybajom) volt Egészségügyi központ (Sellye) Sellyei Közös Önkormányzati Hivatal (Sellye) Faluház (Szászvár) SZTK Új épület (Barcs) Polgármesteri Hivatal (Barcs) , ,39 14, , ,53 17, ,00 33, ,60 14, ,43 12, ,57 46, ,55 19, ,51 29, ,61 10, ,27 9, , ,00 63, ,97 0, ,56 38, ,46 0, ,75 46, ,90 26,

6 DETAILED ANALYSIS Analysis of data provided by the municipalities Village Center, Magyarszék Name of the structure Existing U value [W/m 2 K] Requirement U value [W/m 2 K] (from ) Adequacy Facade wall does not comply Windows and doors does not comply Roofs does not comply Floor does not comply Conclusions on proposed refurbishments: Outside wall thermal insulation Some of outside windows (above U=2 values) - replacement Attic slab and the roof slab thermal insulation (needs further examination) Ground touching floor thermal insulation Thermal technique development and modernization of building engineering systems

7 DETAILED ANALYSIS Analysis of data provided by the municipalities Sport building, Mohács Name of the structure Existing U value [W/m 2 K] Requirement U value [W/m 2 K] (from ) Adequacy Solid brick facade walls does not comply Windows and doors does not comply Slab under attic does not comply Arcade slab does not comply Floor does not comply Conclusions on proposed refurbishments: Outside wall thermal insulation Outside doors and windows - replacement Closing, attic and arcade slab thermal insulation Ground touching floor thermal insulation Thermal technique development and modernization of building engineering systems

8 SITE VISITS Village Center, Magyarszék

9 SITE VISITS Sport building, Mohács

10 PROJECT FICHES Structure of project fiches General information about the building Existing condition Boundary structures Heat production system Heating system Energy analysis Proposed efficiency measures, estimated costs Proposed refurbishments Energy performance of the building after the proposed refurbishments Estimated costs of the refurbishment Financial analysis Estimate savings (GJ/yr, kwh/yr, tco2/yr, HUF/yr) Payback time (without and with EU funding) Net present value calculation (without and with EU funding) Conclusions and recommendations

11 PROJECT FICHES Main findings Average size of buildings: 1337 m2, 5115 m3. High heat transfer coefficients at outside walls, windows, doors, roofs, slabs, floors Gas heating with outdated thermal technique and of building engineering systems Complex refurbishment is needed at most of public buildings Present E performance levels: D G Achievable E performance levels: B A+ Averages of 16 public buildings: Total investment cost: 76.4 million HUF (254.7 thousand EUR) Estimated saving of total cost: 4,36 million HUF (14,55 thousand EUR) Payback time - IRR: 19.8 yrs 4.3% Payback time IRR (with 85% EU funding): 3.0 yrs 60.9% Investments are generally proposed to be implemented with EU funding.

12 Thank you! György MÁRTON managing director Logframe Consulting Office

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