my electricity, smart electricity: a local approach© 2016 statcon energiaa | confidential 3 statcon...
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1 © 2016 Statcon Energiaa | CONFIDENTIAL Statcon Energiaa: Rooftop solar solutions
www.statconenergiaa.com
My Electricity, Smart Electricity: A local approach
Manoj Pande
2 © 2016 Statcon Energiaa | CONFIDENTIAL Statcon Energiaa: Rooftop solar solutions
• STATCON ENERGIAA is one of India’s largest Power Electronics manufacturing company with an expertise in designing, manufacturing and technical support of equipment for static energy conversion, covering a broad spectrum of power, especially static rectifiers.
• Statcon Energiaa is now a dedicated design and manufacturing unit in the field of solar photovoltaics, defence and power sector, catering to their needs of Power Electronic equipments.
MNRE CHANNEL PARTNERS
ISO 9001:2008 CERTIFIED
55 MW OF
SOLAR
INVERTERS
INSTALLED
9.6MW of Projects
Completed
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• In addition to detailed knowledge of technological developments, our company also has a deep insight into various market segments.
• Critical application areas include Defense, State Electricity Boards, power generating stations, aviation, telecommunication, Solar, Railways and Renewables.
SOLAR
POWER
RAILWAYS DEFENSE
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Corporate Office in Sector 63 Noida
Manufacturing Facility of 1,24,000 square feet Near Noida ( Pilkhua ) with >240 personnel currently working for the company .
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Process Industries
Actively involved in Solar projects across the following sectors
Shopping mall and complexes
Defence establishments
Urban Office Buildings
Hospitals
Hotels and Resorts
Cold Storages
Schools
Petrol Pump Stations
Government Buildings
Township grids
Rural mini and micro grids
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“PM NARENDRA MODI Inaugurates 180 KWp Hybrid Solar Plant at District Court Khunti , commissioned by STATCON under JREDA”
“ Uttar Pradesh’s first and India’s most successful Solar Cold storage installed at Shri Cold Storage Etawah, studied by panel from The Indian Ministry of Horticulture”
SOLAR PROJECTS
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• With an ambitious target set for 2022, Renewable energy sources
will inject large amounts of power into the grid.
• This shift in generation portfolios will have profound effects on
the operation of the grid, which will in turn affect the operation
of Renewable Energy resources themselves as well as the
operation of other resources and equipment connected to the
grid.
175 GW
Wind and solar generation both experience intermittency, a combination of non-controllable
variability and partial unpredictability, and depend on resources that are location-dependent:
Introduction: Requirement
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Introduction: Requirement Pure Grid Tie Inverters: Is it time to ease up?
1. Inverter Shuts down when grid is out: This occurs due to anti-islanding feature
of all grid tied inverters. In a power deficient country like India where the Grid is unreliable and power outages are frequent, Grid-Tie Inverter will not work to give electricity even when the sun is shining.
2. Cannot Guarantee 24x7 Electricity: As there is no storage, it can only be useful
during the daytime and the consumer will be powerless during a brownout if there is no DG Set.
3. NO SAVINGS ON DIESEL: DG SETS need to be run daily ; same as before , so no savings
on diesel costs and pollution too.
4. Poor DG utilisation:Running on lesser loads results in carbon buildup and internal glazing
within the DG set and greatly reduces its life and performance
5. Puts Pressure on DISCOMs: DISCOMs are forced to sign a PPA to buy the units that
the consumer is selling on the DISCOMs infrastructure
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Depiction of the Utility Death Spiral
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• Variability in the context of wind and
solar resources refers to the fact that
their output is not constant.
• As can be seen from the two graphs
shown here, the values fluctuate
wildly very high level of predictability
is required to prepare the
conventional source of power
accordingly.
Introduction: Requirement Generation side
Output curve of Solar PV Farm
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Introduction: Requirement Load side: Wide seasonal variations
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Introduction: Requirement Load side: Wide seasonal variations
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Introduction: Requirement
• Frequency Regulation
• Spinning Reserves
• Black-start Capacity
• Tracking Loads
• Voltage/VAR Control And Regulation
• Fault Ride-through
• Active Power Control, Ramping And Curtailment
• Primary Frequency Regulation
• Load Shifting
• Demand-side Balancing Services
A system that integrates renewable energy sources into the grid should require some characteristics to regulate the power as required
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• Energy storage, due to its tremendous range of uses and configurations, may assist RE integration in any number of ways. In India, the more popular form of energy storage medium is the electrical Battery
• Now we have established that the grid integration of renewable storage is an absolute must:
Question remains whether storage will be centralised or
distributed?
Introduction: Requirement
• The current favoured solution to all the requirements mentioned previously, is the Electrical Energy Storage solution or the EES as it is more commonly referred.
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PROS:
1. Single party owned renewable energy storage based container solution
2. The same party will take care of its operation and maintenance
3. Easier billing as only two parties will be majorly involved. One net meter to measure the
incoming and outgoing units out of the container system.
4. Can be strategically placed throughout the smart cities: for e.g.: Each sector can have
one, each major market area, apartment clusters, industrial areas etc.
Centralised Storage
Centralized storage systems tend to be larger units, in a smaller number, and connected to the transmission network at strategic points.
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CONS
1. Large initial CAPEX leading to the question of Who will pay the huge initial capital
expenditure required for the battery container system, Power electronics as well as the Solar
PV System(or any other renewables)
2. Life of battery will not be as much as claimed by the manufacturers, due to frequent
charge/discharge cycles through the day.
3. The container system will not be useful in case of a power blackout. Neither the power nor
the battery backup will be sufficient to power the requirements of the whole intended area.
4. DISCOM will have to sign a power purchase agreement or PPA guaranteeing purchase of a
minimum number of units per month even if the requirement arises or not. Otherwise the
installer may never be able to fully recover their costs profitably
Centralised Storage
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Distributed Storage
• Distributed ESSs can be described as numerous small on-site storage systems, connected to the edge of the network.
• Decentralised or distributed energy storage refers to such systems connected to the low or medium voltage grid. They are installed close to load centres, renewable generation sources, on distribution feeder circuits or at consumer premises behind the meter.
Grid
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GRID
Grid Present
Energy for All Loads + Battery charging is supplied Via AC Grid + Solar Condition # 1
Energiaa HBD Inverter: Distributed ESS
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GRID
Grid Present | Battery Discharging
Energy for All Loads supplied Via controlled battery discharging as required + balance load supplied by Solar. Nothing drawn from grid
Condition # 2
Energiaa HBD Inverter: Distributed ESS
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GRID
Grid Present | Battery Discharging | Solar Absent
Energy for All Loads supplied Via controlled battery discharging as required (No Energy Drawn from Grid)
Condition # 3
Energiaa HBD Inverter: Distributed ESS
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No GRID
Grid Absent | Battery Discharging
Energy for All Loads supplied Via battery discharging + Solar
Condition # 4
Energiaa HBD Inverter: Distributed ESS
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GRID
Grid Present | Battery Discharging
Energy for All Loads supplied Via controlled battery discharging as required + Energy is exported to the grid as well
Condition # 5
Energiaa HBD Inverter: Distributed ESS
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Distributed Storage
Grid Import
Import
Import
Import
Export
Export
Export
Export
Export
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Energiaa HBD Inverter: Distributed ESS
PROS:
1. Ownership of the System will be with the small end user directly, usually between the
range of 5KWH to 200KWH
2. DISCOMs will not be needed to guarantee the number of units purchased. They will
instead communicate to the system directly when to charge and when to discharge from
the grid dynamically and PPA will be signed accordingly.
3. Individual rooftops will be owned by the user themselves thus space issue is resolved. My
Electricity, my house.
4. Hybrid Inverter technology nowadays readily available which will communicate with the
DISCOMs like BSES in Delhi and use the home’s battery system to regulate the grid.
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Energiaa HBD Inverter: Distributed ESS
Load Levelling
CONS:
Major Issue with this type of system would be the complicated Power purchase agreements with dynamic pricing, energy markets, discounts, load management and to educate the large population regarding this.
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Conclusion: Meri Bijli Mere Ghar
Following the trend of utilities in countries which have already gone through these challenges, let us
prepare ourselves for what we know is inevitable and help the Government form a policy with the
industry regarding the Storage based grid integration of Renewables.
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Thank you
Email: [email protected]
Manoj Pande Director, Statcon Energiaa