Product Presentation 11

Energy Storage Solutions & Applications

Vikas K. Tyagi

Product Presentation 2

Storage: A Potential Solution

Capacity firming output from solar Power Plant can be maintained at a committed (firm) level for a period of time to eliminate rapid voltage and power swings on the electrical grid.

Load leveling store the power during low demand and use the stored energy when the demand increases

Voltage support An energy storage system can help to maintain thegrid voltage by injecting or absorbing both active and reactive power.

Peak shaving Peak shaving is similar to load leveling, but may be for thepurpose of reducing peak demand rather than for economy of operation.

Improve Power System Stability

Product Presentation 3

Understanding Energy Performance

The fundamental metrics used to define a storage technology for most electricity grid systems include: Energy storage capacity [kWh or Ah]; Charge and discharge rates [kW or A]; Lifetime [cycles, years, kWhlife]; Roundtrip efficiency [%]; Initial capital costs Operating costs

Product Presentation 4

Types of Energy Storage

Energy Storage

Electro

magnetic

Capacitors

Ultra Capacitors

Superconducting Magnetic Energy Storage (SMES)

Electro Chemical

Battery

Kinetic Energy

Flywheel

Des

ign/

Dev

elop

men

t S

tage

for

hi

gh e

nerg

y de

amnd

Product Presentation 5

Available Energy Storage Solutions

  Lead Acid Battery

Li-Ion Batteries

NaS Batteries

Flow Batteries Flywheels Pumped

hydro

Large Scale CAES

Applicable Grid System Size

< 10MW < 10MW > 100MW 25kW-10MW100Kw-200MW

Mostly >200MW

>500MW

Life time(Years)

3-10 10-15 15 5-15 20 25+ 20+

Lifetime(cycles)

500-800 2000-3000 4000-40000 1500-15000 >100000 >50000 >10000

Efficiency (%)

70-90% 85-95% 80-90% 70-85% 85-95% 75-85% 45-60%

Product Presentation 6

Advantages and Constraints of Storage Solutions

Storage Technology Advantages Constraints

Lead-acid batteriesWidely available, moderatecosts, modular

Limited lifetime, must be disposed of properly, must be maintained properly

Li-Ion batteriesRapid technological improvement,compact in size

Rupture risk, little experience with use in electric grids

Na-S batteriesCan be used for ancillary services,high roundtrip effi ciency

Suitable only for larger electricity systems, corrosivechemicals

Flow batteriesCan be fully discharged, somewhatmodular

Still under development, higher capital costs

Flywheels Modular, low maintenance Expensive

Pumped Hydro Technically proven, low costsVery large scale, significant environmental impacts of construction

CAES (compressed air energy storage)

Moderate costs Very large scale, uses natural gas

HydrogenCan be used as a transportationfuel, compatible with fuel cells

Low roundtrip efficiency, expensive

Product Presentation 77

Energy Storage Applications

Product Presentation 8

Energy Storage ApplicationsPV Plant

PV Modules DC protection and control

DC/AC conversion

AC Protection

Grid

Energy Storage

Product Presentation 9

Energy Gateway : Block Diagram

Product Presentation 10

Energy Drawn from different sources

Micro GenerationEnergy obtained on a small scale can reduce the demand on the grid

Larger NetworkCan generate own power through solar panels, wind turbine and in turn can supply energy back to grid

Energy StorageEnergy generated during Non Peak times can be stored for future use

Energy Storage ApplicationsSmart Grid

Product Presentation 11

Energy Storage Application :Rural electrificationOff Grid with Energy Storage

Rural electrification today

Power supply unit

GenSet replaced by a main Power Supply Unit

New distributed power sources

GenSet with decentral PV and storage

For small and medium system with concentrated resources

For large system with dispersed generation (example: big island )

Product Presentation 12

Off grid with PV, GenSet and storage

- Power supply unit integrating - PV+Wind+Hydro + Genset

Voltage fixed by Power Supply unit no control issue

Reduced diesel consumption according to battery sizing

GenSet is working only if low battery and no other resources

GenSet Diesel

Power supply

unit

Product Presentation 13

Self Consumption Industrial & domestic with PV Feeding tariff push for self consumption

APPLICATION FINAL USER involved Remarks

Peak shavingIndustrial, domestic, utilities, high eff. Building

Reduce cost of contract and infrastructure

Outage protection Industrial, Domestic Gen Set replacement,Industrial processes

Power Factor Correction

Industrial, Utilities Standard not clearly defined

Energy shifting REN producer, utilities Reduce cost of infrastructure (ex. Wind)

Grid support Utilities New standard requirement (ex. CEI 016)

Charging station Public customer, industry, private electric vehicles

Hybrid power solution Public, utilities, private (ex. Hotel) Rural electrifications

Energy Storage Solutions…User based

Product Presentation 14

Black start Capability is the ability of a power plant / electricity system to start-up and provide necessary power to re-energize the grid and start other power generating systems without the use of an external power resource after a complete power outage or islanding situation.

Emergency power supply for protection and control equipment

Solar Powered Street Light system

Energy Storage Applications :Others

Product Presentation 15

SOCOMEC Group

The benefit of a specialist

An independent manufacturer providing expert solutions for LV

electrical networks

“

”

Product Presentation 16

SOCOMEC Group

Key figures

production sites

9subsidiaries

21

years

90

product references

20,000customers

20,000

employees

3,200

M€ turnover

443

Product Presentation 17

SOCOMEC Group

4 fields of expertise

Power Control & Safety Managing power and protecting individuals and property

Energy Efficiency Improving building and facility energy efficiency

Solar Power Guaranteeing the safety and durability of photovoltaic (PV) facilities

Critical Power Ensuring the availability of high-quality power for critical applications

Product Presentation 18

SOCOMEC Group

Solar Power

Supervision

Switching and isolatingProtection against overcurrents and excess voltagePrevention of DC insulation degradation

Solar inverters

Product Presentation 19

MONITORING

SOLARINVERTER

PVPanels

Accesscontrol

FIELDBOX

Solar RoomsInfrastructure

Solar System : Wide Approach

Product Presentation 20

Socomec Solar : 3 AXES

HYBRIDFOR RURALELECTRIFICATION

STORAGE

GRIDCONNECTEDSOLUTION

Product Presentation 21

Sunsys Lithium

High rapid discharge performance (peak shaving applications).

High energy density. Highly compact. Easy scalability. Easy to maintain (hot-swap plug-in). Long life cycle. Maintenance-free. Zero environmental impact. Rated Capacity 33KWh or 42KWh Rated Load Time 4 hrs

Product Presentation 22

Sunsys Lead Acid

High performance (e.g. maintaining battery charge, high number of charge/discharge cycles, etc.)

High energy density. Solution suitable for fast charge systems. Suitable for installations in harsh environments. Highly compact. Easy to service. No maintenance contract. Rated Charging Time 4 Hrs Rated Capacity 22KWhr

Product Presentation 23