Upload
ngoanh
View
217
Download
2
Embed Size (px)
Citation preview
1
Solar Powered EV Charging Tata Power Delhi Distribution Ltd
2
Background
Facts ~1.5 Lac E-Rickshaws plying in Delhi;
Charging for about 8 to 10 hrs - for a running distance of ~ 80 kms
Mostly operated by those residing in JJ clusters and Unauthorized colonies
Informal charging infrastructure charging around Rs. 100/- per E Rickshaw per day
3
Current E-Rickshaw Charging Practices in Delhi
• Carried out at open/unutilized space without any permission
• Direct theft of electricity by illegal tapping of distribution network
• Unsafe operating conditions with risk to human life and equipment
• Crude and cheap chargers combined with variable charging
duration leading to reduced battery life
• Few operators charging from Domestic Connections
4
Identified 14 primary locations
where charging is being done
currently
Nearly 124 rickshaws being
charged regularly
Zones have been instructed to
identify theft prone points; teams
deployed at sit
E-Rickshaw Charging locations in TPDDL area
5
Possible Models for E-Rickshaw Charging based upon PV (1/2)
Model Name Highlights Challenges
Model-1
E-Rickshaws charging
stations with Solar PV
plant at same location
Proposal for centralized
location where maximum
no. of E-Rickshaws are
being charged & Solar PV
be installed on the rooftop
Approval from Land
owning agency
Space available for
Parking
Model-2
E-Rickshaw charging
stations with Solar PV
plant at different
locations
Proposal for installation of
PV solar on different Govt.
buildings locations where
maximum E-Rickshaw are
plying in the vicinity ; e.g.
DDA shopping complex/
Metro stations/ other
locations and set up of
charging infrastructure at
different locations
Involvement of DERC
/DDA/ other Govt.
Buildings
Space constraint with
DDA
Ownership and Parking
Problems at different
charging locations
6
Possible Models for E-Rickshaw Charging based upon PV (2/2)
Model Name Highlights Challenges
Model-3
Central Charging stations
for batteries of E-
Rickshaws
Central charging stations
for charging the batteries
of E-Rickshaws and
replacement of batteries
after charging
Very Few Vendors of E-
Rickshaw working with
battery replacement
model
Time taking process,
Ownership of charging
stations
Model-4Rooftop Solar on E-
Rickshaw
Installation of PV on the
hood of E-Rickshaw
Less charging of E-
Rickshaw during
continuous moving of E-
Rickshaw
Theft of PV Modules
7
Model 1 Illustration : E-Rickshaws charging stations with Solar PV plant at same location
Distribution Substation
Centralized charging Station with rooftop solar
Meter
E-Rickshaws
8
Model 2 Illustration : E-Rickshaw charging stations with Solar PV plant at different locations
v
Distribution Substation
E-Rickshaw charging Station
Meter
v
Solar RT Panel on Govt. BuildingSolar RT Panel on School Building
Solar RT Panel on Metro Station E-Rickshaws
9
Plan & Coverage
• Solar plants needs to be set up at various locations incoordination with government/private agencies.
• Such locations should be evenly located throughoutTPDDL operational area.
• Meters will be installed at these locations to monitor theconsumption.
• Installation of charging stations will give rise toemployment through collection of parking chargesalong with Solar plant maintenance at the said areas.
• The project will cover most of the areas with high ERickshaw density.
• Metro Parking areas will also be covered in order toreinforce day charging also resulting in increasedferrying of passengers and hence more earning.
• Charging Stations will also be set up near toconsumption areas like JJ Clusters in order to avoidpower theft at night.
• Most of the contractors giving E Rickshaws on rent willalso be encouraged for deployment of suchinfrastructure.
• Most of the charging stations will be deployed nearsolar plants.
10
Monitoring
• All the charging stations will be deployed with meters
• Billing of these charging stations will be done through
group metering concept as per net metering regulations
of DERC.
• Special chargers to be deployed in order to avoid usage
of electricity for any other purpose.
• In the first phase of this project, charging stations will be
kept at authorized parking through direct or indirect
supervision of consumers.
• The charging stations will be under constant vigil of
TPDDL zonal authorities on weekly basis to avoid any
damage and reporting of issues.
• The solar plants to be deployed in order to offset the
consumption will also be monitored on regular basis to
study any downturn in production due to maintenance
issues.
11
Sustainability
• TPDDL intends to make charging stations a sustainable model
which will be on PPP basis.
• The charging stations will be deployed by TPDDL through
support from MNRE.
• The Charging Stations will be kept under supervision of
contractors or other authorized persons.
• Such supervisors can earn through parking charges due to
parking of E Rickshaws at night.
• Most of the charging stations will be deployed near solar
plants so that authorized personnel can earn through regular
maintenance of solar plants in addition to charging stations.
• The model will also save the infrastructure from damage and
other illegal activities which cannot be foreseen as of now.
• The model will be reviewed on quarterly basis to understand
the viability of this model after coming into operations.
• Regular feedback will also be taken from charging station &
solar plant supervisors to understand day to day problems and
the action on the same will be taken on regular basis.
• Reports will also be submitted to MNRE on yearly basis in
terms of consumption of charging station and generation of
solar plants on annual basis.
12EV Technology with Smart Grid Integration
Vehicle to gridGrid to Vehicle
• EV manages decrease in RE
generation by supplying back
the stored energy.
• Communication and charging
infrastructure help in vehicle to
grid transfer of electricity
• .
• Distress signal communicated
to EV for supplying its stored
electricity to grid. In response
EV will be discharged to
support the power shortage.
• EVs absorbs excess RE generation for
charging their batteries.
• Communication channel and smart
charging infrastructure help in grid to
vehicle transfer of electricity
• Pricing signals adjusted according to
the RE generation so there is an
incentive for shifting charging of EV at
that time. For example, low pricing will
reflect high RE generation which will
initiate charging of EV.
Electric vehicles use electric motors to drive their wheels and derive some or all of their power fromlarge, rechargeable batteries. These batteries can be utilized as reserves for enabling grid integration ofRE.
13Electric Vehicles Case Study: Nanyang Technological University
(NTU), Singapore campus
Laboratory of Clean Energy Research (LaCER) at the NTU conducted an analysis to assess suitability of PHEVs in a campus scale micro
grid. Impact of PHEV integration in smart grid with renewable energy besides the conventional thermal power plants and diesel
generators was observed.
Without considering PHEV
integration
• Wind energy is used primarily as
it is utilized at zero cost.
• Diesel and thermal generators are
used to balance wind generators
With PHEV integration
• Excess wind energy generation is
stored in the PHEV battery
(charging, G2V) and returned
back when generation is less
(discharging, V2G)
• Diesel and thermal consumption
is lower.
Result
In case of excess wind energy, batteries of
the PHEV is charged. These batteries of the
fleet are discharged when wind generation
is low to support the grid.
OPTION 1 OPTION 2
RESULT
OPTION 1 OPTION 2
Source: School of Electrical & Electronic Engineering, Nanyang Technological University,” 2009
14
Roadmap
• Replication of model in case of
success throughout TPDDL
operational Area.
• Exploration of other models to
support the cause.
• Creating of infrastructure in
Smart parking of Smart Cities
• Supporting operations and
sustainability of Electric
Vehicles
Thank You