Prague Public Transit Co Inc Prague ebus Opportunity

Prague Public Transit Co. , Inc. Prague e-bus Opportunity or in-motion charging? Jan Barchánek Bus Operation Unit, deputy manager April 2018

Prague public transport modal share 178 million vehicle km / year METRO 33% BUS 35% TRAM 32% 1, 3 billion passengers / year METRO 48% TRAM 27% BUS 25% e-mobility today (metro + tram) 65% vehicle km / 75% passengers bus challenge 62 million km / 30 million litters diesel

Prague e-bus requirements High energy demand – – full day operation (4: 30 – 0: 30) heavy passenger demand hilly landscape zero emission solution (electric heating, A/C) Cost pressure (TCO) – lack of additional funds – competition in bus operation maximize performance minimize infrastructure costs

Opportunity charging – bipolar concept Electric bus with 2 -pole pantograph 2 -pole trolley Stationary separator 750 VDC Tram track 600 VDC (400 – 1000 VDC) SMT 200

SOR EBN 11 – results (9/2015 – 8/2017) Daily operation – more than 70. 000 km/year Self funded project (no special subsidies) Synergies to tram operation – – Multimodal energy purchase Share energy supply infrastructure Share energy management Recuperation energy from trams (summer up to 15%, winter 2 -5%) – Share knowledge and experience Internal synergies = key of success Observatory group

Opportunity charging – next steps New vehicle SOR NS 12 – – full capacity 12 m bus similar charging concept – bipolar electric heating, A/C, heat pump in operation since 10/2017 E-bus line 207 – – – – radial line to city centre Ohrada 14 e-buses (12 m) 5 min peak headway Staroměstská bipolar charging opportunity charging tram network synergy opportunity charging (4 places), depot charging (14 places) in preparation – expected 2019

Opportunity charging – limits Backbone bus lines challenges – – high passenger demand – need of (be)articulated vehicles hilly line profile – high energy consumption operation productivity – decrease of charging breaks power supply access – synergies to tram supply network, charging places limitation

In-motion charging concept trolley – 100% operation conventional trolleybus trolley – 70 -90% operation battery – 10 -30% operation partial trolleybus trolley – 10 -30% operation battery – 70 -90% operation dynamic e-bus battery – 100% operation static e-bus

In-motion charging – pilot (since 10/2017) Letňany terminus night charging + battery balancing depot Klíčov charging trolley 993 m / 615 m converter station in-motion charging Palmovka terminus opportunity charging UITP

In-motion charging – next steps Tests of different vehicles – – since 10/2017 12 m in operation, 18 m expected optimization of charging power night charging / balancing possibilities Electrification of bus line 140 – feasibility study in preparation – 23 km (both way total) – 6 -7 min peak headway – 15 articulated vehicles – optimization of parameters (battery capacity, trolley section length, charging breaks)

Thank you for your attention barchanekj@dpp. cz , www. dpp. cz