1. Željka Hrs Borković, arch., Planetaris Ltd, Board Member NEARLY ZERO-ENERGY BUILDINGS AND BUILDING ENERGY RENOVATION–BEST PRACTICE EXAMPLES NJEMAČKO-HRVATSKI SIMPOZIJ „ENERGETSKA UČINKOVITOST U ZGRADAMA” 08. ožujak 2016. godine, Terme Tuhelj INTEGRAL ENERGY SAVING SOLUTIONS

2. 2 NEARLY ZERO-ENERGY BUILDINGSBUILDINGS ENERGY RENOVATION Modern energy solutions to achieve minimum costs over the building’s lifetime Integral energy renovation for energy saving and increasing comfort in buildings For investors and architects we design modern energy solutions to achieve minimum costs over the building’s lifetime through: -project of rational use of energy and thermal protection/building physics -study of alternative energy supply systems with cost-optimal analysis of building energy concepts -project documentation of modern technical building systems – main design - consulting at all stages of the project, from the terms of reference to the final energy performance certificate. For owners and users of buildings we guide the process of buildings energy renovation with the goal of saving energy and increasing comfort through: -detailed energy audit with the investment analysis -project documentation for a complete building energy renovation – main design -supervision of work execution, quality control and final energy certification -project management and providing incentives. INTEGRAL ENERGY SAVING SOLUTIONS IN BUILDINGS We take you, step by step, through engineering solutions for nearly zero-energy buildings and buildings energy renovation

3. WHY NEARLY ZERO-ENERGY BUILDINGS? We develop modern energy solutions for nearly zero-energy buildings, which are a legal requirement from 2018, and from today, if the project is financed from EU funds Nearly zero-energy building is a building that has a very high energy performance. The nearly zero or very low amount of energy required should be covered to a very significant extent by energy from renewable sources, including energy from renewable sources produced on-site or nearby We help you design modern energy solution for nearly zero-energy buildings, without a significant increase in investment and with the use of available financial incentives It is important to include us in design process already in the idea stage because then we will be able to propose the best and cost-optimal solution. 3

4. WHY BUILDINGS ENERGY RENOVATION ?  Buildings are the single largest consumer of energy (40-45% of final energy consumption)  Buildings energy renovation represents the greatest potential for energy savings and at the same time an opportunity for a thorough modernization of buildings  Building energy renovation projects return your investments through energy savings and through further increase of the market value of the property  In launching building energy renovation project,integrated approach and a comprehensive view of the possibilities for improving energy efficiency and selection of energy concept that results in the greatest savings with reasonable payback period of investment are important  Our team will guide you the entire process of building energy renovation and assist you in achieving financial incentives. 4

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7. 7 NEARLY ZERO-ENERGY BUILDING - TECHNOLOGY PARK VARAŽDIN (TPV-CKOIE) ENERGY RENOVATION AIPK trgovina d.o.o. Samoborska cesta 134, Zagreb ENERGY RENOVATION Hrvatske ceste d.o.o., Vončinina ulica 3, Zagreb NEARLY ZERO-ENERGY BUILDINGS AND BUILDING ENERGY RENOVATION – BEST PRACTICE EXAMPLES

8. 8 PLANETARIS ENERGY CONCEPT OF NEARLY ZERO-ENERGY BUILDING FOR BUSINESS COMPLEX TECHNOLOGY PARK VARAŽDIN  For office Studio Nexar project team, we have created a modern energy solution as part of the study of alternative energy supply systems with cost optimal analysis and project of rational use of energy and thermal protection  Thanks to the early involvement in the project, selected solution did not affect the increase in investments, and ensured the millions in savings over the building’s lifetime  In the analysis various solutions of embedded systems were combined with the selected level of thermal protection.  Special attention - meeting the criteria of nearly zero-energy building.  Cost-optimal solution was selected with the level of primary energy consumption of 17 kWh/m2 and share of RES is 72%. author Zdenka Šarolić, dipl. ing. arh., Studio Nexar d.o.o. BGA 20.000 m2, inv. cca 40 mil. eura

9. 9 VariantProduction subsystemEnergy sourceHeat emission I Natural gas boiler and heat pump water – water Natural gas and electrical energy Surface heating and cooling IIPellets boiler and heat pump water – waterPellets and electrical energySurface heating and cooling IIIPellets boiler and heat pump air – waterPellets and electrical energyFan coil IVHeat pump air – waterElectrical energyFan coil VHeat pump water – waterElectrical energyFan coil VIHeat pump water – waterElectrical energySurface heating and cooling VIIHeat pump water – waterElectrical energyChilled beams PLANETARIS ENERGY CONCEPT OF NEARLY ZERO-ENERGY BUILDING FOR BUSINESS COMPLEX TECHNOLOGY PARK VARAŽDIN

10. 10 Variant Primary energy [kWh/m 2 a] Primary energy goal achived The share of RES[%] I40,86NO51 II16,34YES78 III15,00YES78 IV18,40YES67 V20,59YES67 VI17,06YES72 VII16,78YES72

11. 11 COST OPTIMAL ANALYSIS according to EN 15459 AND SELECTED SOLUTION

12. 12 ENERGY RENOVATION OFFICE BUILDING AIPK trgovina d.o.o., Samoborska cesta 134, Zagreb  From QHnd=77.757,00 kWh/a, to QHnd=19.333,00 kWh/a, Energy savings 75%  From energy efficiency class C to energy class A, and with the reconstruction of the heating and cooling system and the system of lighting standard NZEB energy renovation can be achieved  INVESTMENT CCA 2.300.000,00 KN + PDV

13. ETICS and continuous aluminum facade corner joint

15. 15 ENERGY RENOVATION OFFICE BUILDING Hrvatske ceste d.o.o., Vončinina ulica 3, Zagreb  Building year 1977., GBA 3.233,00 m2 Existing condition  The poor condition of the building envelope  Relatively poor heating system with poor energy management  The unused potential of the central cooling system  The energy inefficient lighting  Energy efficiency class : D QH,nd=219.536,00 kWh/a

16. 16 The complete building energy renovation  Complete envelope energy renovation while reducing heat loss  Upgrading the heating system  Upgrading the cooling system  Installation of technologically advanced and energy-efficient lighting Annual energy use for heating the building in relation to the current situation is reduced to 156.168,00 kWh/a, or 71%. The current annual energy use for heating the building is QH nd = 219.536,00 kWh / a, and after implementation of works it is reduced to QHnd = 63.368,00 kWh /a. From energy efficiency class C building moves to energy efficiency class A. Three suggested solutions for heating and cooling system -Improving the efficiency of the existing system -The new system - condensing gas boiler -The new system– heat pump air - water for heating and cooling

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18. 18 PLANETARIS OFFERS BEST SOLUTION WITH THE LOWEST COSTS

19. 19 CONTACT US WITH CONFIDENCE!  Detailed energy audit with clear terms of reference  Development of the energy renovation project with key details of implementation.  Multidisciplinary team consisting of experts in architecture, civil engineering, mechanical engineering and electrical engineering  Company specialized in energy renovation project management  Over 500 projects successfully done in various stages  100 % successful application for EU and CRO EE funds  We are available from the first meeting to final energy performance certificate www.planetaris.com zeljka.hrs.borkovic@planetaris.com