Harnessing Solar Energy by Utilizing Rooftop
Space of Railway Buildings
Solar Energy Corporation of India
4th Floor, Tower 1, NBCC plaza
Sector V, Pushp Vihar
Saket, New Delhi-110017
SECI- Inception and Objectives
OUR MANDATE:

To be the implementing agency
for meeting the National Solar
A Government of India Enterprise under
the administrative control of MNRE
Mission objectives

To plan and execute an integrated
programme on development and
Incorporated on 20th September, 2011
as a “Not for profit” Company under
Section 8 of the Companies Act, 2013
deployment of solar energy
technologies to achieve
commercialization;
Authorised capital INR 2,000 Crores; Paid
up capital INR 42 Crores as on FY 2014-15

To own, operate and manage,
both grid-connected & off-grid
power stations;

13-Apr-15
SOLAR ENERGY CORPORATION OF INDIA
To promote R&D in Solar
2
SECI Activities : Ongoing
Broad mandate :
Implementation & Facilitate various activities of the
JNNSM.
As part of the Mission activities SECI has taken up the following projects/
activities.
 750 MW Grid connected solar power plants under JNNSM Phase II
 4000 MW Ultra Mega Solar Power Plant in Sambhar, Rajasthan
 Pilot CSP Projects of around 100 MW
 Implementation of Grid Connected Solar Roof-Top scheme
 Development and dissemination of solar home lighting systems/ solar lanterns
 Solar Thermal installations for water/air heating
 Solar Mini/Micro Grids/street lights etc.
 R&D Projects
13 April 2015
SECI
3
Growth of Solar Capacity (MW)
State
Gujarat
2101
Solar Capcity (MW)
1684
936
3
11
36
2008-09 2009-10 2010-11 2011-12 2012-13 2013-14
%
MWp
860.4
41.0%
Rajasthan
656.15
31.2%
Maharashtra
Madhya
Pradesh
Andhra
Pradesh
Uttar Pradesh
207.25
9.9%
162.315
68.9
7.7%
3.3%
17.375
0.8%
28.18
1.3%
Jharkhand
16
0.8%
Karnataka
24
1.1%
Orissa
15.5
0.7%
Punjab
9.325
0.4%
7.8
0.4%
West Bengal
7.05
0.3%
A & N Island
5.1
0.2%
Uttarakhand
5.05
0.2%
Chhattisgarh
7
0.3%
Delhi
2.6
0.1%
Lakshadweep
0.8
0.0%
Tamil Nadu
Haryana
Roof top PV-Towards grid parity
Source:KPMG
By 2017 roof top solar power cost will reach the grid parity.
Benefits of Roof top PV
• On national level, reduces requirement of
land for addition of solar capacities.
• For consumers, it
– Reduces the dependency on grid power.
– Mitigates diesel generator dependency.
– Long term reliable power source.
• For Discoms, it reduces
– Day Peak load Demand
– T&D and conversion losses as power is consumed
at the point of generation.
• Most suitable for commercial establishments
– Max generation during peak usage time.
– Solar power cost is close to the commercial power
cost.
SECI’s Grid Connected Rooftop Scheme
Salient Features
• MNRE launched a pilot scheme in year 2013 for grid connected rooftop
PV power projects –being implemented by SECI
• The scheme allows system size from 100 kW to 500 kW
– Aggregation of capacity from smaller roofs is allowed.
• 30% of the cost would be provided as subsidy and 70% to be met by the
consumer
• Systems are to be grid connected and without battery back up
• Mostly in-house/captive consumption and to replace diesel generation
• Surplus solar power to be fed to the grid
• Cities across India being covered under the scheme for wider
participation/promotion
• Developers selected through a competitive process
Implementation
• Under the scheme SECI
– Allocates capacity for each city/State in consultation with
MNRE/SNAs
– Verify project proposals w.r.t. technical specifications and release
the sanction for subsidy which is linked to performance up to 2
years
– Release initial subsidy on successful commissions as per technical
specifications (20%)
– Release 5 % subsidy each at the end of 1st and 2nd year of
successful maintenance of the project
– Help developers for identification of projects through
dissemination workshops and to discuss any issues with concern
authorities
SECI’s Ongoing Scheme of Rooftop PV
(Covering 37 Cities of India)
Chandigarh (1)
Mohali (1)
Implementing
Rooftop
projects with 30% subsidy
from MNRE
100-500kW
capacity
projects being set up in
select cities
Phase I: 5.5 MW (4 cities)
Phase II: 11.3 MW (6 cities)
Phase III: 10 MW (9 cities)
Gurgaon (2.5)
New Delhi (5)
Jaipur (3.75)
Gwalior (1)
Noida/Greater Noida (3.5)
Panchkula (1)
Faridabad(0.5)
Bhopal (1)
Gandhinagar (1)
Vadodara (0.5)
Surat (0.5)
Nasik (0.5)
Legend
Phase I
Phase II
Phase III
Phase IV
Multiple phases
() Capacity in MW
13-Apr-15
Amritsar (0.5)
Ludhiana (0.5)
Nagpur (0.5)
Mumbai (1)
Pune (3)
Tirupati (0.5)
Bangalore (3)
Coimbatore (1.5)
SOLAR ENERGY CORPORATION OF INDIA
Patna (2)
Palatana (1)
Ranchi (2)
Kolkata (2)
Durgapur (1)
Bhubaneswar (1)
Raipur (2.05)
Vijaywada (0.5)
Hyderabad (4)
Chennai (6)
Mysore (1)
Madurai (0.5)
11
Grid Connected Rooftop Scheme of SECI
• So far 27 MW is allotted under three Phases of the
Scheme
• Around 40 MW will be allotted in Phase IV of the scheme
– Benchmark cost is Rs. 90/ Wp for PPP model (RESCO) ; on which 30% capital
subsidy will be available from MNRE
– Tariff based competitive bidding is experimented for RESCO model in Phase
IV of the scheme which lead to solar tariff in general in range of Rs. 6.0 to
Rs. 6.745 (Cap at Rs.6.75/kWh)
– In Capex model Average price is Rs. 75/Wp; Breakeven 5 to 6 years
Indian Railways - Rooftop Solar PV Potential
• Roofs of Railway Stations
• (On going discussions for rooftop
SPV systems at New Delhi, Anand
Vihar, Katra Railway Stations etc)
• Railway Workshops,
• Loco sheds,
• Coach factories,
• Residential Railway Colonies,
• Office buildings,
• Hospitals etc.
Energy Utilization Pattern In Indian Railways
• Electricity consumption: 16.6 billion units (14.16 billion units
Traction, 2.46 billion unit for non traction) ~`~ 2500MW
~~ 3800 MW (peak) , (22 billion unit , 5000 MW XII Plan projected)
• Electricity consumption(Non Traction) - workshop 25%, station
and service building 35%, pumping 10%, domestic 30%
• Share in total energy Consumption (NATIONAL) - 2 %
• Share in total energy consumption of transport sector - 5 %
( 77 % diesel, 23 % electricity)
• Share of energy in total operating cost of IR – 24% (18,000 Cr, 8700 Cr for
Electricity)
(87 % traction, 13 % non- traction)
Energy Usage
FOR
• Rolling stock manufacture, maintenance and disposal
• Train operation.
• Infrastructure construction and maintenance
• Administration of transport business.
• Energy production and trade.
TIME
• 24 X 7 X 365
THROUGH
• GRID Power+ DG Set + Renewable (very Low)
Why Solar in Railways
• Railway sector growth 8-9%
• Progressive shift of freight traffic to railway
• 80% of rail freight and 60% passenger traffic on electric
energy by 2030
• Electricity demand to go 100 billion kWh by 2030 for railway
sector alone in India
• The current trends indicates constraints in indigenous
availability of conventional energy resources
• World trend to achieve min. 25% through RE by 2020 in
transport sector leader Germany, Sweden, USA
• Fuel diversity
• No space constraint
Railways Initiatives
• Indian Railways Vision 2020-At least 10% of its total energy to
come from renewable sources such as solar power, wind, and
biomass etc.” (500MW)
• Policy of solar based system for D and E class station, emergency
light for all class of station(sep,12)
•
Achievement so far
• 10.50 MW Wind
• 4.50 MW solar
• 4.69 MW solar PV Plant in progress
Railways Initiatives
• Solarization of unmanned Railway Crossings
– For Optical fiber and Integrated Battery bank system
– The system size ranges from 1400 Wp to 3500 Wp
– More than 150 systems have been installed nation
wide
– The zone covered are Eastern, Nothern railway,
Western railway and West central
• Installation of 500 kWp size Rooftop at Katra Railway
station in J&K within 3 to 4 months
• Decided to take up rooftop PV projects at railway
stations, workshops, loco sheds, hospitals ,offices and
residential colonies etc Under Phase I of 500 MW across
the country
• Railways to share the details of rooftop space
• SECI and IR may work together on a special scheme
dedicated to Railways (in consultation with MNRE for
CFA) and implemented through various business models
including PPP mode
• Major consumption by IR at respective locations and excess
power only to flow to grid
• Activity start up locations are New Delhi Railway station,
Katra Railway Station, workshops at Dahod , Bhusaval,
Chittaranjan locomotive works and Kanchanpara,
• Innovative Pilot project of providing rooftop PV on one NonAC railway coach with thin film technology
• SECI shall provide complete solution from Conceptualization,
estimation, tendering, Implementation, monitoring,
handholding and initial O&M support for these Solar Power
Projects and activities for Indian Railways
Criterion for Roof Selection for SPV Systems
• In the ideal case SPV system should be mounted facing
towards South direction
• Roofs should have longer life and better load-bearing
capacity
• Structure should be strong enough to bear the load of
the PV panels and the associate mounting systems
• Roofs may be identified in the initial phase where
commercial tariff is high and there is better promotional
prospect
Key Challenges
Roof Assessment
• Detailed structural analysis and wind load assessment is required
to be carried out for realistic SPV design and engineering
• It has been seen that most of the roofs comprise Asbestos
Cement Sheets which are brittle in nature and not generally
recommended for SPV systems
• SPV systems should be installed on the roofs with metallic tops
for longer life and better load-bearing capacity
THANK YOU