1. www.balticbiogasbus.eu1 Assets RMP OÜ „Research on the procurement options of CNG (compressed natural gas) busses”

2. www.balticbiogasbus.eu2 Table of contents Introduction Purpose of the research Methods Results Summary and recommendations

3. www.balticbiogasbus.eu3 Introduction The current research was completed within the Baltic Sea Region Programme 2007-2013 project Baltic Biogas Bus. With regards to the project, Tartu City Government has agreed to buy (bio)gas- fuelled busses and to build the needed infrastructure. So far the following studies have been conducted: 1) Feasibility study of CNG busses to be used in public transport 2) Study about the production of landfill gasses of Aardlapalu landfill 3) Study about the selection of locations for CNG fuelling stations 4) Feasibility study of a (bio)gas fuelling station 5) Feasibility study of the depot for biogas busses The current study about the procurement options of CNG busses also supports the cause of the project.

4. www.balticbiogasbus.eu4 Introduction The usage of CNG as fuel for vehicles Natural gas: the mixture of methane + ethane, propane, buthane, fractions of higher hydrocarbons and inert gases Less polluting components deriving from combustion The preference of natural gas over liquid fuel prolongs the working life of engines. CNG can also comprise of biogas, which has been produced by anaerobic decomposition in landfills, biogas generators and water treatment plants, and which can be further purified to obtain biomethane.

5. www.balticbiogasbus.eu5 Introduction The usage of CNG as fuel for vehicles Embodiments of CNG engines: a)bifuelled engine, which is capable of using both natural gas and benzine b)two-system engine, in which the engine works only on diesel or the combination of diesel and natural gas. The diesel part is used for the ignition of natural gas. c)single system engine, working only on natural gas (preferred by the bus producers) 25 per cent less CO2 production compared to petrol fuelled cars, 20 per cent less compared to diesel cars engine noise level 2 times lower.

6. www.balticbiogasbus.eu6 Purpose of the study To analyse and compare CNG busses and their procurement conditions meant for serving in the public transport, having sent inquiries to different bus producers/suppliers

7. www.balticbiogasbus.eu7 Methods * To establish the best procurement choice, table comparison has been used, in where the procurement conditions (total price, delivery time, guarantee, passenger capacity) have been indicated as “+” (favourable) and “-” (unfavourable). Evaluation is based on the arithmetic mean of the procurement conditions, which has been found by using the table calculation program of MS Excel 2007. On the basis of the arithmetic mean, the delivery conditions of the 5 suppliers have been divided into criteria of pros and cons (“+” and “-”).

8. www.balticbiogasbus.eu8 Methods Price inquiries were sent to the following enterprises: 1. Keil M.A. OÜ 2. Solaris Bus & Coach S.A 3. AS Silberauto 4. Scania Eesti AS 5. TEDOM s.r.o. (TEDOM Holding company)

9. www.balticbiogasbus.eu9 Results - Comparision of CNG busses technical specifications – 12m length Bus model Length/ Width/ Height Gross vehicle weight EngineEmission standard Fuel tankDoors arrangemant CapacityACAccesories MAN Lion’s City CNG 11980/250 0/3370 mm 18 000 kg228 kW (310 hp) EEV6 x CNG 214 l cylindres 214 l 1284 l 3 doors, 2+2+232 seats / 56 standing places 2 electrical ventilators -destination board Scania OmniCity N310UB4 x2 12000/255 0/ 3000 mm 18 000 kg228 kW (310 hp) EEV5 x CNG cylindres 1200 l 3 doors, 2+2+2 ( 2+2+1) 30 seats / 50 standing places AC- destination board Solaris Urbino 12 LE CNG 12000/255 0/3290 mm 18 000 (19 000) kg 234,8 kW (320 hp) EEV6 x CNG 214 l cylindres 1284 l 3 doors, 2+2+1 (2+2+2) 30 seats / 50 standing places -AC-optional -dual- functional fans-2 pieces -electrical roof hatches-2 pieces -destination board Mercedes -Benz Citaro CNG 11950/255 0/3389 mm 19 000 kg185 kW (250 hp) EEV950 l (optional 1520 l) 3 doors, 2+2+231 seats / 62 standing places -ventilation ca 1200 m ³/h, -AC optional - TEDOM C 12 G 12030/255 0/3354 mm 19 000 kg220 kW (310 hp) EEV3x CNG cylindres, 960l (optional 4 cylindres, 1280 l) 3 doors, 2+2+229 seats / 57 standing places -2 ceiling ventilators for passengers space ventilation -driver’s cabine or whole bus air- conditioning (Optional) -

10. www.balticbiogasbus.eu10 Results - Comparision of CNG busses technical specifications – 18m length Bus model Length/ Width/ Height Gross vehicle weight EngineEmission standard Fuel tankDoors arrangema nt CapacityACAccesorie s MAN Lion’s City GL CNG 18750/25 00/3370 mm 28 000 kg12l, 228 kW (310 hp) EEV6x CNG cylindres 214 l 1284 l 4 doors, 2+2+2+2 52 seats / 95 standing places - electronical ventilator in driver cabin -2 electronical ventilators for passengers area - destination board Mercede s-Benz Citaro G CNG 17940/25 50/3389 mm 29 000 kg240 kW (326 hp) EEV1140 l (optional 1520 l ) 4 doors, 2+2+2+2 49 seats / 100 standing places -ventilation ca 1200 m ³/h, -AC optional -

11. www.balticbiogasbus.eu11 Results – Comparison of CNG buses procurement options – 12 m busses CNG bus model Terms Total costTime of delivery Other terms of delivery Financing possibilities offered by supplier Terms of guarantee MAN Lion’s City 252 557 EUR +VAT 180 days-Price for minimum 5 buses in 12 months -Cost includes registration and first operating instruction --Whole bus guarantee for 1 year -Additional transmission parts guarantee by the end of the second year -Guarantee begins with registration -It is possibe to buy additional guarantees Scania OmniCity N310UB4x2 270 000 EUR + VAT 210 days-Financing depends on customer and location -Entire bus for 1 year Solaris Urbino 12 LE CNG 269 000 EUR+VAT -1 bus180days -3-6 buses360 days -7 and more depends on production plan Payment in 30 days--For entire bus 2 years - for chassis and body structure 10 years Mercedes- Benz Citaro CNG 12m 249 360 EUR- +VAT 180 daysWarranty or bank guarantee --For entire bus 2 years -Kilometrage limit 200 000 km; TEDOM C 12 G 230 000 EUR+VAT 180 days-Company offers Export Financing provided by Czech bank For body and chassis 8 years, transmission parts 2 years

12. www.balticbiogasbus.eu12 Results – Comparison of CNG buses procurement options – 18 m busses CNG bus model Terms Total costTime of delivery Other terms of delivery Financing possibilities offered by vendor Passenger capacityTerms of guarantee MAN Lion’s City GL CNG 338 875 EUR+km 210 days-Price includes registration and first training -Price for minimum 4 buses in 12 months -52+1 seats, 95 standing places (148) -Entire bus guarantee for 1 year -Additional transmission parts guarantee by the end of the second year -Guarantee begins with registration -It is possibe to buy additional guarantees Mercedes- Benz Citaro G CNG 351 662 EUR+km 180 days-Warranty or bank guarantee -49 seats/ 100 standing places; (149) 2 years, kilometrage limit 200 000 km;

13. www.balticbiogasbus.eu13 Evaluation criteria CNG bus model CriteriaSum of criteria Total costTerms of delivery Financing possibilities offered by supplier Passenger capacityTerms of guarantee +- MAN Lion’s City CNG ++-+-32 Scania OmniCity N310UB4 x2 --+--14 Solaris Urbino 12 LE CNG -+--+23 Mercedes- Benz Citaro CNG ++-++41 TEDOM C 12 G +++++50 MAN Lion’s City GL CNG +----14 Mercedes- Benz Citaro G CNG -+-++32

14. www.balticbiogasbus.eu14 Summary and recommendations Feasible options of procurements 12m CNG busses – Mercedes-Benz Citaro CNG and TEDOM C12G. 18m CNG busses – Mercedes-Benz Citaro CNG. Recommendations: *Find more info about technical properties of the busses, especially regarding the concrete solutions and Tartu city features. *More research needed about specific delivery and payment conditions. *Start negotiations with the most suitable supplier in order to sign contracts. *After the project´s preparatory phase, start the pilot project.