How smart e-mobility infrastructure supports the transition to carbon neutral public transport in the Merseyside area.
Arriva Merseyside is a public transport operator running bus services in and around the Liverpool City Region, providing public transport services to the nearly 1.5 million local residents.
Arriva is committed
to making its business carbon neutral by 2030. The company also wants to reduce
its impact on air quality in the urban centres where its services operate.
In 2018, Arriva
Merseyside purchased 12 Enviro Buses, BYD ADL Enviro200EV single deck pure
electric buses to serve some of the bus routes in Liverpool’s city centre. The
e-buses joined the 51 hybrid and 9 gas buses already added to the fleet earlier
that year. This was the introduction of the final part of a £21 million
investment into cutting edge green technology from Arriva Merseyside. The
purchase was also supported through a successful £5 million bid for Government
(OLEV) funding for new, greener buses, in partnership with Arriva.
“Arriva is committed to reducing carbon emissions, both by encouraging more people to use public transport and by minimising our own environmental impact” says Marcello Giovanardi
Category Manager –
Fuel, Lubricants, Utilities at Arriva. “We were already working with Schneider
Electric as our partner on energy bill validations and commodity risk
management for the depot, so we’re aware of their expertise in this area and
reputation for delivering reliable high-performance solutions.”
environmental commitment extends to its power infrastructure, which is vital to
supporting the increasing number of electric vehicles in its fleet. They were
therefore seeking a partner with strong sustainability credentials to design
and install the electrical infrastructure to deliver an industrial supply at
the depot in Green Lane, Merseyside. The central requirement of the project was
to provide reliable and secure electricity supply for 6 double bus chargers on
a charging island in the middle of the depot.
A key goal was to
minimise disruption to normal bus services during the installation process. It
was essential that the solution enabled a reliable and resilient power supply
with 100% uptime to the electric bus chargers. The provider of electrical
infrastructure would be required to work in close collaboration with both the charger
manufacturer and the local network operator, to ensure all components of the
new system met the required regulatory standards as well as Arriva’s Health
& Safety policy for people on site.
The solution itself
was required to be highly durable and withstand all weather in its outdoor
location, whilst also having a minimal footprint as space is at a premium in
the urban setting of the Green Lane depot.
commitment to transition towards emissions-free operations, the charging
infrastructure would also need to have capacity to grow the number of electric
buses it services in the future.
The project began
with a comprehensive consultation process with Arriva Merseyside and the other
technology and utilities partners involved, Schneider Electric, led by its
Power Consultancy team. The parties then designed, then installed and
manufactured an 11kV packaged substation in a configuration tailored to the
project requirements. Key features included the implementation of a low voltage
MCCB feeder pillar, RN2c T2/21 ring main unit (RMU), and transformer to step
down the supply to 415v as required by the chargers. The MCCB feeder pillar
featured ComPact NS circuit breakers at 1600A to enable built-in power and
energy metering functionalities through embedded MicroControl units. The direct
coupling used in the substation design means that the product required minimal
cabling to be installed and will require minimal maintenance over its lifetime,
reducing overall cost.
The 11kV packaged substation,
including switchgear and transformer, is manufactured in Schneider Electric’s
plant in Leeds under a direct and controlled factory assembly, making the
overall product incredibly safe. The packaged substation offer is also
consistent with Arriva Merseyside’s environmental commitment, having been
manufactured to meet the ISO 14001 environmental standards as standard.
The substation was
installed on the depot’s land near the perimeter of the site, making the most
effective use of space available in the urban location. This was possible due
to the highly durable design of the components. The MCCB feeder pillar,
designed for the UK market, is fully compliant with ISO 12924 standard to
ensure that components will not rust even when constantly exposed to the
elements for years.
Delivered as a
single unit, the substation implementation was a time-efficient and streamlined
process, successfully minimising disruption to on site operation of bus
services during the project. The unit also has capacity to support a larger
number of chargers, should Arriva Merseyside decide to expand the all-electric
portion of its fleet in future – without further expansion of the depot’s power
The depot now has
two separate power supplies, providing back up capability where required to
ensure Arriva has even greater resiliency of supply.
now has a safe, reliable and convenient charging infrastructure in place for
the 12 electric buses in its Merseyside fleet. Continuous achievement of 100%
uptime and a charge time of 4-6 hours allows buses to be charged overnight,
which is convenient, efficient, and cost-effective. Using this system, Arriva Merseyside
can now operate its first all-electric bus route in Merseyside. The Schneider Electric
solutions are contributing to cleaner, greener public transport for the
now has the capacity to scale the number of chargers at the Green Lane depot
going forwards, to accelerate its progress towards its carbon neutral 2030
goal. The shift towards more electrified public transport is expected to combat
air pollution in the local area, as well as take Arriva one step closer to its
company-wide carbon neutral goal.
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