Assets RMP OÜ

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Assets RMP OÜ

„Research on the procurement options of CNG (compressed natural gas) busses”


Table of contents

• Introduction• Purpose of the research• Methods• Results• Summary and recommendations


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 transport2) Study about the production of landfill gasses of Aardlapalu landfill3) Study about the selection of locations for CNG fuelling stations4) Feasibility study of a (bio)gas fuelling station5) 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.


IntroductionThe 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.


IntroductionThe usage of CNG as fuel for vehicles

•Embodiments of CNG engines:a)bifuelled engine, which is capable of using both natural gas and benzineb)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.


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


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 “-”).


Methods

Price inquiries were sent to the following enterprises:

1. Keil M.A. OÜ2. Solaris Bus & Coach S.A 3. AS Silberauto4. Scania Eesti AS5. TEDOM s.r.o. (TEDOM Holding company)


Results - Comparision of CNG busses technical specifications – 12m length

Bus model

Length/ Width/ Height

Gross vehicle weight

Engine Emission standard

Fuel tank Doors arrangemant

Capacity AC Accesories

MAN Lion’s CityCNG

11980/2500/3370 mm

18 000 kg 228 kW (310 hp)

EEV 6 x CNG 214 l cylindres 214 l 1284 l

3 doors, 2+2+2 32 seats / 56 standing places

2 electrical ventilators

-destination board

Scania OmniCity N310UB4x2

12000/2550/ 3000 mm

18 000 kg 228 kW (310 hp)

EEV 5 x CNG cylindres1200 l

3 doors, 2+2+2( 2+2+1)

30 seats / 50 standing places

AC - destination board

SolarisUrbino 12 LE CNG

12000/2550/3290 mm

18 000 (19 000) kg

234,8 kW(320 hp)

EEV 6 x CNG 214 l cylindres1284 l

3 doors, 2+2+1 (2+2+2)


-AC-optional-dual-functional fans-2 pieces-electrical roof hatches-2 pieces

-destination board

Mercedes-Benz Citaro CNG

11950/2550/3389 mm

19 000 kg 185 kW (250 hp)

EEV 950 l (optional 1520 l)


-ventilation ca 1200 m ³/h, -AC optional

-

TEDOM C 12 G

12030/2550/3354 mm

19 000 kg 220 kW(310 hp)

EEV 3x CNG cylindres, 960l (optional 4 cylindres, 1280 l)


-2 ceiling ventilators for passengers space ventilation-driver’s cabine or whole bus air-conditioning (Optional)

-


Results - Comparision of CNG busses technical specifications – 18m length

Bus model

Length/ Width/ Height

Gross vehicle weight

Engine Emission standard

Fuel tank Doors arrangema

nt

Capacity AC Accesories

MAN Lion’s City GL CNG

18750/2500/3370 mm

28 000 kg 12l, 228 kW (310 hp)

EEV 6x CNG cylindres 214 l 1284 l

4 doors, 2+2+2+2


- electronical ventilator in driver cabin-2 electronical ventilators for passengers area

-destination board

Mercedes-Benz Citaro G CNG

17940/2550/3389 mm

29 000 kg 240 kW (326 hp)

EEV 1140 l (optional 1520 l )

4 doors, 2+2+2+2


-ventilation ca 1200 m ³/h, -AC optional

-


Results – Comparison of CNG buses procurement options – 12 m busses

CNG bus model

Terms

Total cost Time 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


270 000 EUR + VAT

210 days - Financing depends on customer and location

-Entire bus for 1 year


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 days Warranty 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


Results – Comparison of CNG buses procurement options – 18 m busses

CNG bus model

Terms

Total cost Time of delivery

Other terms of delivery

Financing possibilities offered by vendor

Passenger capacity Terms of guarantee


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


351 662 EUR+km

180 days -Warranty or bank guarantee

- 49 seats/ 100 standing places; (149)

2 years, kilometrage limit 200 000 km;


Evaluation criteriaCNG bus model

Criteria Sum of criteria

Total cost Terms of delivery

Financing possibilities offered by supplier

Passenger capacity Terms of guarantee

+ -

MAN Lion’s CityCNG

+ + - + - 3 2


- - + - - 1 4


- + - - + 2 3

Mercedes-Benz Citaro CNG

+ + - + + 4 1

TEDOM C 12 G

+ + + + + 5 0


+ - - - - 1 4


- + - + + 3 2


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.

Assets RMP OÜ

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