Impact of Energy storage on Grid Reliability and Efficiency:

Renewable Energy Integration

Hiren Chandra Borah Scientist B

Ministry of New and Renewable Energy Govt. of India

Thermal; 180362; 69%

Hydro; 40867; 16%

Nuclear; 5780; 2%

Renewable; 34352; 13% INSTALLED CAPACITIES (MW)

Total Installed

Capacity = 261361

MW

Indian Power Sector - Overview

* Hydro Power does not include Small Hydro Plants (0 to 25 MW), which is included in Renewables

Wind ; 22645; 66%

Small Hydro; 4025; 12%

Biomass; 4299; 12%

Solar; 3383; 10%

INSTALLED RE CAPACITIES (MW)

Installed Renewable Power Capacity

Total Installed

RE Capacity = 34352

MW

Solar; 750; 84%

Wind; 100; 11%

Bio-Energy; 25; 3%

Small Hydro; 15; 2%

Total RE Potential

= 890 GW

Renewable Energy Potential (890 GW)

Solar; 100; 57%

Wind; 60; 34%

Bio-Energy; 10; 6%

Small Hydro; 5; 3% RE TARGET IN GW

Renewable Energy Targets by 2022 : (175 GW)

Progress of solar power in India

11 36

932

1686

2632

3383

0

500

1000

1500

2000

2500

3000

3500

4000

2009-10 2010-11 2011-12 2012-13 2013-14 2014-15

MW

Year

Installed capacity (MW)

Till June 2015 , about 4000 MW have been installed

Scale up and fast tracking plan : 100 GW by 2021-22

Vision Ahead for solar power

4

10

15 16

17 17,5 17,5

0

5

10

15

20

2015-16 2016-17 2017-18 2018-19 2019-20 2020-21 2021-22

GW

Year

Year-wise Capacity addition Targets (GW)

Drop in Solar PV Tariff over last few years

0,27 0,26 0,23

0,15 0,13

0,11

2009-10 2010-11 2011-12 2012-13 2013-14 2014-15

Euro

s

Year

Regulatory Tariff (Euros/unit)

Less than 0.1 0 Euros this year 2015-16

Microgrids and Rural Electrification

• Microgrids can provide power support to off grid or weaker grids by enabling integration of locally available renewable resources and reducing reliance on Diesel Generators

• Rural Electrification Corporation is Nodal Agency under Rajiv Gandhi Rural Electrification Scheme. – Under the scheme, 90% capital subsidy is provided by Government of

India for overall cost of projects.

• This is generating interest in hybrid renewable + energy storage projects for supplying power to remote villages

• Similar opportunities also exist for commercial & Industrial facilities with weak grid connectivity

Solar Resource Maps for India

10

Solar Potential of India

100 GW

40 GW Rooftop

60 GW large plants

20 GW

(Entrepreneurs)

10 GW

(PSUs)

5 GW

(Large Pvt. Sector)

5 GW

(SECI)

10 GW

(Through States)

10 GW

(Already Planned Schemes)

100 GW Solar by 2022- Vision

Initiatives taken by Government to achieve 100 GW solar capacity

– Renewable Purchase Obligations – Renewable Energy Certificates – Various Schemes for promotion and

deployment of solar plants offering incentives like Feed-in-tariff, Generation Based Incentive, Capital Subsidy, Viability Gap Funding, Bundling with cheap conventional power, etc. to make solar power affordable to Electricity Distribution Companies

Demand Side Initiatives

–Renewable Generation Obligations

–Custom Duty Concessions

– Excise Duty Exemptions

–Other Fiscal and Tax related incentives

Supply Side Initiatives

–25 SOLAR PARKS of capacities 500 MW or above are being set-up in various parts of India, to give impetus to solar power generation.

–GREEN ENERGY CORRIDOR is being built, connecting major solar potential states, to facilitate Transmission of Renewable Energy.

Supply Side Initiatives

–Providing easy finance to roof-top owners for setting up grid connected roof top solar power plants

– Enabling Net Metering Policy

–Obligating installation of solar PV systems on Roof-Tops of new buildings

Steps taken for Promoting Grid-Connected Solar Roof Tops

• Central Electricity Authority (CEA) has notified “Technical Standards for Connectivity of the Distributed Generation Resources-CEA Regulations 2013” which allows the connectivity of grid connected rooftop SPV plants.

• Central Electricity Authority (CEA) has notified the “Central Electricity Authority (Installation and Operation of Meters) Amendment Regulations 2014” which allows the metering arrangement for grid connected solar rooftop system in the country.

Grid Connected Solar Rooftop Systems

Regulations Notified by CEA

Solar Policies supporting grid connected rooftop announced

• 13 States namely Andhra Pradesh, Chhattisgarh, Gujarat, Haryana, Karnataka, Kerala, Manipur, Punjab, Rajasthan, Uttar Pradesh, Tamil Nadu, Uttarakhand and West Bengal.

SERC’s regulations notified for grid connected rooftop solar systems with net metering/feed-in-tariff mechanism.

• 20 States/UTs namely Andhra Pradesh, Chhattisgarh, Delhi, Gujarat, Haryana, Karnataka, Kerala, Odisha, Rajasthan, Tamil Nadu, Uttar Pradesh, Uttarakhand, West Bengal, Andaman & Nicobar, Chandigarh, Dadra & Nagar Haveli, Daman & Diu, Lakshadweep, Pondicherry and Goa have the regulations that include promotion of have come out with their

• Remaining States are requested to come out with their policies/regulations . Drafts are under preparation

Grid Connected Solar Rooftop Systems Policy and Regulations

MNRE

• DISCOMs have to play a vital role in those States where the

regulatory framework has been notified by respective SERCs. They are required to allow connectivity, replace meters and develop a mechanism for operating a grid connected rooftop system.

• The procedure for inviting applications, providing connectivity, implementing net-metering mechanism should be made simple and easy for the customers.

• DISCOMs may also encourage the potential entities and individuals for solar rooftop installations.

• A simple application format may be developed for inviting applications and if possible, the single window approach may be followed.

Actions Solicited from DISCOMs

• Some encouraging incentives like rebate in electricity bill, mandatory requirement for installation of grid connected rooftop solar systems in all Government buildings, advertisement through electric bills etc. may be considered by States.

• At the District Collectors level, some prizes may be considered for the best installations of grid connected rooftop solar systems in the State.

• Under IPDS the grid connected rooftop solar system has been taken

up as a component and a guideline has been issued. Its implementation for grid connected rooftop solar system’s installations needs to be ensured under IPDS.

Actions Solicited from States

Govt. College for Girls, Sector – 11, Chandigarh

MNRE

• The Ministry of New and Renewable Energy, Government

of India organized the First Renewable Energy Global

Investors Meet & Expo (RE-Invest) on 15-17 February 2015

in New Delhi.

• The central theme of RE-Invest was to attract large scale

investments for the renewable energy sector in India.

• RE- Invest 2015 enabled the global investment community

to connect with renewable energy stakeholders in India.

RE-INVEST 2015

RE-INVEST 2015

•The event was attended by over 200 investors

and over 1000 delegates, both domestic and

international.

•As part of this event, India got a commitment

of more than 265 GW by Solar Power

Developers, as well as various banks/financial

institutions

• The event was attended by over 200

investors and over 1000 delegates,

both domestic and international.

• As part of this event, India got a

commitment of more than 265 GW by

Solar Power Developers, as well as

various banks/financial institutions.

RE-INVEST 2015

Thank You

Nature of renewable energy supplies and real challenge

Renewable energy supplies are continuing or repetitive current of energy occurring in natural environment The initial input power from renewable energy

supplies therefore is outside our control; and matching supply and demand in the time domain is a real challenge Two ways to overcome this challenge are :

Either matching the load to the availability of renewable energy supply when it is available, or for constant load, hybridize it with an auxiliary energy supply system

Storing the energy for future use i.e. keeping it available when and where it is required

Need of storage

• Energy storage is essential to balance supply and demand.

• Higher levels of energy storage are required for grid flexibility and grid stability and to cope with the increasing use of intermittent wind and solar electricity.

• Smart cities ( target 100 nos), a key energy policy goal, require smart grids and smart storage.

Few energy storage technologies

Batterries

Lead Acid ( mostly used in India) Flywheels

Sodium-Sulfur Batteries (NAS) Electrochemical Capacitors

Sodium Sulphur Batteries Pumped Hydro

Vanadium Redox Batteries Compressed Air Storage

Zinc Bromine Batteries Other tech.

Li Ion

Remarks

India is having a great market of renewable energy . Accordingly there is need of smart grid so that the energy tapped from renewable sources were utilised in a smart way.