This document discusses renewable energy integration and energy storage in India. It notes that renewable energy currently makes up 38.98% of total installed capacity but is projected to reach 58.7% by 2030. To support this increasing renewable penetration, energy storage capacity is projected to reach 24,977 MW by 2030. The document outlines recent grid incidents caused by high renewable penetration and issues with integration. It provides the status of various pumped storage and battery energy storage projects underway or planned in India to support the growing renewable energy sector while ensuring grid stability and reliability.

1. 1
Renewable Energy & Storage
State Energy Minister’s Conference
Udaipur,
14th -16th October, 2022

2. 2
 Present Status and by 2030
a. Renewables: Break up of RES as on 31.08.2022 is given below (in MW)
b. Current Share of RE in Total Installed Capacity (IC): 38.98% - RE Variations in Grid
are presently being handled by flexibilization of Thermal Power Plants, flexible Hydro
based storage projects & other existing Storages such as PSPs (3305.60 MW) etc.
c. Share of RE in Total IC by 2030 (as per CEA Generation Planning Study): 58.7%
d. Share of Storage by 2030: 24,977 MW (5-hour) of BESS and 14,526 MW of
Pumped Storage Plants (PSPs). Storage requirement would further increase as the
RE gains deeper penetration in the process of net zero emissions target of the country
by the year 2070.
Renewable Integration
Hydro Small
Hydro
Power
Wind
Power
Bio-Power Solar
Power
Total
Capacity
BM Power/
Cogen.
Waste to
Energy
46850.17 4887.90 41204.68 10205.61 476.75 59302.70 162927.81

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a. Recent grid incidents in the major RE complexes in Rajasthan:
i. Incident on 09th July, 2022 at 13:42 hrs.- Tripping of multiple elements in Rajasthan Solar
Complex initiated by fault on 400 kV Bikaner(PG) – Bikaner(RS) (PG) Ckt-1. There was a drop
of approximately 3485 MW in Solar Generation connected at different RE pooling stations.
The Solar Generation recovered to around 2300 MW within three (3) minutes.
ii. Incident on 11th August, 2022 at 11:23 hrs.- Loss of RE Generation of around 6000 MW and
tripping of major associated transmission lines. Grid frequency dropped from 50.16 Hz to
49.46 Hz.
 The frequency quickly recovered to 49.62 Hz with the activation of primary frequency
response and df/dt based load shedding.
 Complete outage of two major RE pooling stations plus a significant generation loss
at two other pooling stations.
iii. Incident on 11th September,2022 at 12:22 hrs.- The incident was due to tripping of 220 kV
Bhadla – Hero Solar Energy line.
 RE generation loss of 1100 MW and tripping of few lines on over-voltage.
Issues cropping up due to RE Integration

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 Use Based
a. ESS shall be designated as a Power System element which can be utilized
as a Generator, Transmission element or Distribution element.
b. ESS may be entitled to provide grid flexibility services arising out of RE
capacity addition such as grid support/ ancillary services, fast response/
ramping up/ ramping down and peak shifting either on standalone basis or
in conjunction with other power system elements.
 Business Cases
a. RE supply with Energy Storage System (ESS): These projects may also
be utilized to meet Peak power and firm dispatchable RE requirements of
Procurers.
Application of Storage

5. 5
 Business Case
b. ESS with transmission infrastructure: Aimed at maximization of the
utilization of the transmission Asset, increasing duration of usage of
transmission system and strengthen Grid stability.
c. Storage for ancillary services/ balancing services / flexible operations
d. Storage for Distribution: Maximization of the utilization of the Storage
Asset and strengthening DISCOM operations. Connected at the load centres,
it may be suitably utilized by the Discoms to manage its peak load, grid
resilience, portfolio management and flexible operations.
Application of Storage

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 Battery Energy Storage System (BESS)
• The process for tendering/ award for 1000 MW BESS is in underway by SECI.
• Details of Grid Scale Energy Storage project developed in India are given as below:
Status of Energy Storage Development in India
Sr. No. Location Capacity
Above 5 MW
1. TPDDL, Rohini, Delhi 10 MW/10 MWh
2. Sun Temple, Mehsana,
Gujarat
19.2 MWh
3. Dollygunj and Attampahad
in South Andaman
16 MW/8 MWh
Under 5 MW
4. BHEL R&D Campus,
Hyderabad
200 kWh Flow Battery, 300 kWh Advanced Lead
Acid and 500 kWh Li-Ion
5. Bangalore 400 kWh
6. Puducherry 500 kW/250kWh (Li- ion)
7. Chennai 270 kWph

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 Pumped Storage Projects (PSPs)
• Types of PSPs
a. Conventional PSP - Both upper and lower reservoirs to be constructed are on
natural river course.
b. Off-Stream PSPs:
i. Open Loop PSP - All newly constructed components (including at least
one reservoir) are located away from river stream and utilizing one of the
existing reservoirs which can be on the river stream.
ii. Off-Stream Closed Loop PSP - Both upper and lower reservoirs which
are to be constructed newly are away from natural river course.
• Considering the benefits of widespread flexibility in location of project, lesser forest,
environmental and R&R issues, lower gestation period and lower cost viz-a-viz
river based schemes, the category of Off-Stream/ River PSPs need to be prioritized
for faster implementation & lower tariff benefits.
Status of Energy Storage Development in India

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• The list of in-operation PSPs in the country is given as below:
Status of Energy Storage Development in India
S.No.
SCHEMES STATE INSTALLED CAPACITY REMARKS
No. of
units x
Unit
size(MW)
MW
a. Working in Pumping Mode
1. Nagarjuna Sagar Telangana 7x100.80 705.60
2. Srisailam LBPH Telangana 6x150 900
3. Kadamparai Tamil Nadu 4x100 400
4. Bhira
Maharashtr
a
1x150 150
5. Ghatgar
Maharashtr
a
2x125 250
6. Purulia
West
Bengal
4x225 900
Sub Total 3305.60

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• Installed PSPs (2 nos.) but presently not working in Pumping Mode (1440 MW)
Contd….
Status of PSPs Development in India
S.No.
SCHEMES STATE INSTALLED CAPACITY REMARKS
No. of units x
Unit size(MW)
MW
b. Installed PSPs but presently not working in Pumping Mode
7.
Kadana
PSP
Gujarat 2x60+2x60 240
 Operation in pumping mode not taken due
to vibration problem in the machines.
 Tender for new units for capable of working
in pumping mode to be floated in Oct’22.
Estimated cost is Rs. 750 Crs.
8
Sardar
Sarovar
Project
Gujarat 6x200 1200
 The Generation of SSHEP is shared between
Gujarat (16%), Maharashtra (27%) &
Madhya Pradesh (57%) States, as per the
Narmada Water Disputes Tribunal (NWDT)
Award.
 Additional cost on procurement of relevant
E&M equipment to make it operational in
pumping mode is about Rs. 300 Crs.
 Out of three partner states of M.P. Gujarat
and Maharashtra, only M.P. Govt. is not
agreeable to pumping mode operation of
project.
Sub total 1440
Grand Total
(Working + Non-
working PSPs)
4745.60

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a. Large Potential Availability of PSPs in India.
b. Assessment of Potential of PSPs – 103 GW (89 nos.)
i. PSPs in operation – 3305.6 MW (6 nos.)
ii. PSPs not in operation – 1440 MW (2 nos.)
iii. Under Construction – 2780 MW (4 nos.)
iv. Cleared by CEA and yet to be taken up for construction – 1000 MW (1 no. of
Scheme)
v. Under Survey & Investigation (S&I) Stage – 24280 MW (22 nos.)
i. River Based – 9000 MW (9 nos.)
ii. Off-River Closed Loop - 8260 MW (6 nos.)
iii. Off-River Open Loop – 7020 MW (7 nos.)
c. Likely additional PSPs by 2029-30 – 11380 MW ( 12 nos.)
d. Likely additional PSPs by 2030-32 - 28060 MW ( 27 nos.)
Potential and Development Status of PSPs

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S.NO NAME OF PROJECT/ AGENCY STATE TOTAL
CAPACITY (MW)
TENTATIVE DATE OF
COMMISSIONING
Under Construction
1 Tehri PSS (THDC) Uttarakhand 1000 Oct, 2023
2 Kundah Pumped Storage Phase-I,II&III) Tamil Nadu 500 Dec, 2024
3 Pinnapuram (Greenko AP01 IREP
Private Limited)
Andhra Pradesh 1200 May,2025
4 Koyna Left Bank (WRD,MAH) Maharashtra 80 2027-28
Sub Total 2780
Cleared by CEA and yet to be taken up for construction
5 Turga / WBSEDCL West Bengal 1000 2029-30
Under S&I
6 MP 30 Gandhi Sagar PSP/ Greenko Madhya Pradesh 1440 2026-27
7 Upper Indravati PSP / OHPCL Odisha 600 2027-28
8 Sharavathy PSP / KPCL Karnataka 2000 2027-28
9 Saundatti PSP / Greenko Karnataka 1260 2027-28
10 Chitravathi / ADANI GREEN ENERGY
LTD.
Andhra Pradesh 500 2028-29
11 Gandikota / ADANI GREEN ENERGY
LTD.
Andhra Pradesh 1000 2029-30
12 Owk / NREDCAP Andhra Pradesh 800 2029-30
Sub Total 7600
List of Additional PSPs by 2032

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S.NO NAME OF PROJECT STATE TOTAL CAPACITY
(MW)
TENTATIVE DATE OF
COMMISSIONING
13 Kodayar PSP / TANGEDCO Tamil Nadu 500 2030-31
14 Balimela / OHPCL Odisha 500 2030-31
15 Sillahalla PSP / TANGEDCO Tamil Nadu 1000 2030-31
16 Upper Kolab PSP / OHPCL Odisha 320 2030-31
17 Kurukutti PSP / ADANI GREEN ENERGY LTD. Andhra Pradesh 1200 2030-31
18 Karrivalasa PSP / ADANI GREEN ENERGY LTD. Andhra Pradesh 1000 2030-31
19 Warasgaon / WRD Mah. Maharashtra 1200 2030-31
20 Bhavali PSP / JSW * Maharashtra 1500 2030-31
21 Yerravaram/ NREDCAP Andhra Pradesh 1200 2031-32
22 Somasila PSP / NREDCAP Andhra Pradesh 900 2031-32
23 Sukhpura Off Stream PSP / Greenko Rajasthan 2560 2031-32
24 Shahpur/ Greenko Rajasthan 1800 2031-32
25 Singanamala / NREDCAP Andhra Pradesh 800 2031-32
26 Paidipalem East / NREDCAP Andhra Pradesh 1200 2031-32
27 Paidipalem North / NREDCAP Andhra Pradesh 1000 2031-32
Sub Total 16680
Total 28060
*- Captives have lot of potential for tying up with PSPs.
List of Additional PSPs by 2032

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Agency Number of Projects Capacity (in MW)
NHPC 10 14700
SJVNL 11 12745
THDCIL 10 12555
NEEPCO 10 14880
DVC 4 5010
BBMB 1 1800
NTPC 9 11550
Total 55 73240
Identification of the CPSUs for Development of PSPs

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S. No. State/UT
Probable
IC (MW)
Revised indication /
Changes proposed
1 Jammu & Kashmir 1650 NHPC
2 Himachal Pradesh 4445
BBMB ,SJVN
3 Uttarakhand 1935 THDCIL
4 Punjab BBMB
5 Haryana BBMB
6 Rajasthan BBMB
7
Uttar Pradesh
THDCIL
8 Maharashtra 28127 NHPC, SJVN, THDCIL, NTPC
9 Gujrat SJVN
10 Madhya Pradesh 500 NHPC
Identified Projects by the CPSUs for Allocation

15. 15
S. No. State/UT
Probable
IC (MW)
Revised indication /
Changes proposed
11 Chhattisgarh THDCIL
12 Jharkhand 3300 DVC
13 Bihar SJVN
14 Odisha 2500 NHPC
15 West Bengal 1710 DVC
16 Sikkim NHPC
17 Andhra Pradesh 1650 NTPC
18 Telangana NHPC
19 Tamil Nadu 7100 NTPC
20 Karnataka 2200 KPCL, NTPC
Identified Projects by the CPSUs for Allocation

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S. No. State/UT
Probable
IC (MW)
Revised indication /
Changes proposed
21 Kerala 900 THDCIL
22 Manipur 4350 NEEPCO
23 Assam 2420 NEEPCO
24 Mizoram 10450 NEEPCO
25 Arunachal Pradesh
660 NEEPCO
Identified Projects by the CPSUs for Allocation

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a. Waiver of ISTS Charges provided in full up to 30.06.2025 and in reduced
graded manner vide MoP order dated 23rd November, 2021.
b. Legal Status for Energy Storage Systems issued by MoP on 29th January,
2022.
c. RE Bundling: Scheme for Scheduling of Thermal/ Hydro Power Stations
through bundling with Renewable energy and Hydro Power notified vide
MoP order dated 12th April, 2022.
d. Renewable Purchase Obligations (43.33% by 2029-30) and Energy
Storage Obligations (4% by 2029-30) notified vide MoP order dt. 22nd
Jul, 2022.
Measures taken up/ proposed for the Promotion of Storage

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e. Formulation of Comprehensive National Energy Storage Policy is in
progress.
f. Viability Gap Funding (VGF)
g. Issue of Bidding Guidelines for ESS
i. Bidding Guidelines Issued by MoP
a. After notifying Bidding Guidelines for BESS in March, 2022, the tendering/
award for development of 1000 MWh BESS by SECI is underway.
ii. Bidding Guidelines proposed to be Issued by MoP
a. Long Duration Energy Storage (LDES) for Long Term Procurement:
For storage requirement beyond six hours per day, gestation/ delivery
period of 54 months from date of signing of agreement and a
procurement contract of at least 12 years.
Measures taken up/ proposed for the Promotion of Storage

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b. Short Duration Energy Storage (SDES) for Medium-Term Procurement:
Four hours per day, gestation/ delivery period of 18 to 24 months from date
of signing of agreement and a procurement contract of up to 10 years.
c. SDES for Ancillary Services:
Feature of SDES less than four hours per day, gestation/ delivery period
of 3-4 months from date of signing of agreement and a procurement contract
of up to 3 years.
Measures taken up/ proposed for the Promotion of Storage

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h. Prioritization of Off-River PSPs
Considering the benefits of wider Geographical/ Locational flexibility, lesser
forest, environmental and R&R issues, lower gestation period and lower cost
viz-a-viz river based schemes, the category of Off-Stream/ River PSPs need to be
prioritized for faster implementation & lower tariff benefits.
i. Potential assessment for Off-Stream Pumped Storage projects.
ii. CEA has revised its guidelines for faster concurrence from earlier 150 days
to 75 days (for projects construction on Competitive Bidding process) and
150 days to 125 days (for projects construction on Cost-plus basis).
Measures taken up/ proposed for the Promotion of Storage

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Prioritization of Off-River Schemes (Contd….)
iii. Off-Stream Pumped Storage Projects (Closed & Open Loop) to be
classified as separate category for Environmental Clearance because of
its location away from riverine system.
iv. Data collection to be limited to one (1) season (as is for Thermal Plants).
v. Allow degraded forest lands for compensatory afforestation for Off-river
PSPs.
vi. Allow construction of Project works on Forest Land & Non-Forest Land
after Stage-I Approval.
vii. EC, Forest land Diversion and DPR Concurrence are Concurrent &
Independent Processes so there may be no precondition of obtaining
one clearance prior to the other.
Measures taken up/ proposed for the Promotion of Storage

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States to facilitate in faster implementation of Hydro PSP.
Identification of use cases in Generation, Transmission,
Distribution. Ancillary Services.
Encourage large captive users also to go for Hydro PSPs.
Allot projects to CPSUs or may bid out the projects.
Way Forward

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