Flexible Grid Resource in India: Returning the Energy to the Grid

Electric Vehicles (EVs) are more than just means for transport. All EVs are inherently equipped with battery storage, making them energy resources on wheels. From the electricity distribution perspective, EV charging can be viewed as dynamic loads that may pop up anywhere on the electric grid at any time. For every electricity distribution company an EV is a double-edged sword, presenting an opportunity and a challenge. Unmanaged EV charging can cause sudden demand spikes in the distribution system and hamper smooth power system operation of the power system.

There is a need for solutions that mitigate the negative impact of EVs on the electricity grid and enable their use as grid resources, commonly referred to as Vehicle to Grid integration (VGI). VGI is often defined as “the many ways in which a vehicle can provide benefits or services to the grid, society, the EV driver, or charge point operator by optimising electric vehicle interaction with the electrical grid”.

There are two aspects of VGI; V1G for managing the EV charging, and V2G for supplying power back from EV to the grid. For V1G, smart charging is relatively easier to accomplish as it is associated with unidirectional control of electricity flow. To enable power to flow from the vehicle to grid, a complex bidirectional control is needed. With V2G the benefits of VGI extend beyond managing the EV charging load, as EV can provide useful services to the grid. Active management of electricity flow between the grid and EV is a promising solution to manage EV charging load, and the easier way to use EVs as a flexible grid resource. Going one step further, and enabling the EV batteries to feed electricity back into the grid, the complex V2G technology allows EVs to provide additional flexibility to the power system at the distribution level.

Flexibility requirement of Indian electricity grid is interlinked with its decarbonisation. It is anticipated that the need for flexibility in the power system will rise in the future, due to an increase in the penetration of intermittent renewable energy (RE) sources such as wind and solar. Hence, enabled by V2G technology, EVs can help shape the future load curve to match RE supply and provide ancillary services to improve grid security and stability. Despite these grid benefits, V2G is yet to see commercial adoption beyond a few small pilot projects, even in advanced EV markets in Europe or the US. The reason for this is that there are several significant technical and practical challenges to implementing V2G at scale, especially in India, which are highlighted below.

Lack of hardware for V2G: Currently, there are a limited number of EVs that support V2G and none of these models are available in the Indian market. Moreover, globally, there are few V2G-ready EV chargers. Furthermore, vehicle manufacturers are concerned about the impact of V2G on battery health, and, hence, they derecognise the warranty on the EV battery if it is used for purposes other than mobility.
Aggregation challenge: A single EV battery is too small to effectively provide grid service by itself. Hence aggregation of EVs is important to achieve the size to support a commercial V2G programme. Vehicles are highly distributed and mobile assets by default, and to use them as a grid resource, one would require advanced communication and control infrastructure, which is still at an early stage of development. Furthermore, the concept of “resource aggregation” and the role of “aggregators” are largely non-existent in India’s electricity market and regulatory framework.
Unfavourable regulatory ecosystem: The existing regulatory frameworks in the transport and power sectors are not adequate for V2G implementation. While EV regulations need to allow commercial use of EVs for grid services, the electricity regulatory framework must recognise mobile distributed energy resources. Moreover, the ancillary service market is largely absent in India.
Low-capacity EV batteries: Unlike in the developed markets, light EVs (e-2Ws and e-3Ws) are gaining more traction than e-4Ws in India. For example, of the total sales of 1.56 lakh EVs (excluding e-rickshaws) in FY 2019-20, 1.52 lakh units were reportedly e-2Ws, 3400 e-4Ws, and 600 e-buses. Since scaling of aggregated EV batteries is critical to making V2G a viable business case, EVs with large battery sizes are more desirable. This means that, due to the lower battery sizes in India, a greater number of EVs will need to be aggregated to participate in V2G, which makes implementation more challenging, both logistically and financially.

Based on the aforementioned challenges, one can infer that, with V2G yet to evolve from a concept into a commercial project in advanced EV markets, it may only remain a topic of academic interest in India for the near future. However, as the penetration of EVs increase the benefit of having commercially viable V2G technology will have an exponential impact on the renewable energy capacity addition in India and improve the efficient operation of the future electricity grid. Thus, to make V2G a reality in the country in the future, not only does India’s EV market have to evolve, but its power sector regulations also need to undergo a major transformation.

To know more about Vehicle to Grid Integration please refer to AEEE report available at https://aeee.in/our_publications/vehicle-grid-integration/

The blog is written by Chandana Sasidharan with inputs from Nitin Kesar.

EV Segment	Demand Incentives
Electric 2-wheeler	Purchase incentive of Rs. 5,000/- per kWh of battery capacity; Maximum incentive of Rs. 30,000/- per vehicle Incentive for scrapping and de-registering old ICE two wheelers registered in Delhi: Up to Rs. 5,000/- of the incentive shall be reimbursed by the GNCTD All delivery service providers shall be expected to convert 50% of their fleet operating in Delhi to electric by 3V March, 2023 and 100% by 31st March, 2025.
E-Autos	Open permit system shall be applicable & be given on first-come-first-serve basis; no cap on permits issued to e-autos in Delhi Purchase Incentive of Rs. 30,000/- per vehicle shall be provided by GNCTD Interest subvention of 5% on loans and/or hire purchase scheme for the purchase of an e-auto Incentive for scrapping and de-registering old ICE auto rickshaws registered in Delhi: Up to Rs. 7,500/- of the incentive shall be reimbursed by the GNCTD The auto-rickshaw permits linked to the de-registered ICE vehicle can be surrendered and exchanged for an e-auto permit at no additional cost.
E-rickshaws & E-carts	Purchase Incentive of Rs. 30,000/- per vehicle shall be provided by GNCTD Interest subvention of 5% on loans and/or hire purchase schemes Buses
E-buses	Pure electric buses shall constitute at least 50% of all new stage-carriage buses (i.e., for all public transport vehicles with 15 seats or more) procured for the city fleet including for last-mile connectivity Induction of 1000 pure electric buses by 2020
Goods Carriers	A Purchase Incentive of Rs. 30,000/- to the first 10,000 e-Carriers to be registered in Delhi after the issuance of this policy. Interest subvention of 5% on loans and/or hire purchase schemes. Incentive for scrapping and de-registering old ICE goods carriers registered in Delhi: Up to Rs. 7,500/- of the Incentive shall be reimbursed by the GNCTD Goods carriers (i.e., L5N and N1 type)
Four wheeler	Purchase Incentive of Rs. 10,000/- per kWh of battery capacity Maximum incentive of Rs. 1,50,000/- per vehicle to the registered owners of the first 1000 e-cars to be registered in Delhi after the issuance of this policy

Vehicle Segment	Battery Size in KWH (approx.)	State Subsidy Amount(Rs.)	Total State Subsidy (Rs.)	Maximum ex-factory price to avail incentive (Rs.)
Electric Two wheeler	2 KWH	10000/- per kWh	20000/-	1,50,000
Electric Three wheeler	5 KWH	10000/- per kWh	50000/-	5,00,000
Electric Four wheeler	15 KWH	10000/- per kWh	150000/-	15,00,000

Sr No	Vehicle segment	Number of EVs	State subsidy
1	2W	100	Rs.10,000/- per Kwh of battery capacity subject to a maximum of Rs.30,000/- per vehicle.
2	3W	50	Rs.10,000/- per Kwh of battery capacity subject to a maximum of Rs.50,000/- per vehicle.
3	4W	50	Rs.10,000/- per Kwh of battery capacity subject to a maximum of Rs.2,00,000/- per vehicle

Sr. No	Owner of PCS	Subsidy
1	Retail Outlet of Oil Marketing Companies	15% of the cost of putting up Public Charging Infrastructures and Stations will be reimbursed by the State Govt. in the form of subsidy/ incentive.
2	Local Entrepreneurs	25% of the cost of putting up Public Charging Infrastructures and Stations will be reimbursed by the State Govt. in the form of subsidy/ incentive

Sr No	Vehicle segment	Ceiling for Early Bird	2023 – 2027
1	2W	35	172
2	3W(E-Rickshaw/ E-Cart)	10	40
3	3W	10	40
4	Car(Including Taxis)	40	167
5	Bus	11	49
6	E-4w ([CV, Stage Carriage/Maxi Cabs)	10	41
Total	–	116	509

Flexible Grid Resource in India: Returning the Energy to the Grid

Chandana Sasidharan

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5 kWh

Sr No	Vehicle Segment	Subsidy (Whichever Is Lower)	Maximum ExShowroom Price to Avail (INR)
1	Two-Wheeler	10% of the Ex-Showroom Price or INR 15,000	1,50,000
2	Three-Wheeler – e Rickshaw / e-cart	10% of the Ex-Showroom Price or INR 30,000	3,00,000
3	Three-Wheeler	10% of the Ex-Showroom Price or INR 50,000	5,00,000
4	Car	10% of the Ex-Showroom Price or INR 2,50,000	25,00,000
5	Bus	25% of the Ex-Showroom Price or INR 50,00,000	2,00,00,000
6	E-4w ([CV, Stage Carriage/Maxi Cabs)	10% of the Ex-Showroom Price or INR 3,00,000	30,00,000

Sr No	Vehicle Segment	Subsidy (Whichever Is Lower)	Maximum ExShowroom Price to Avail (INR)	No of EVs to be subsdised
1	Two-Wheeler	20% of the Ex-Showroom Price or INR 60,000	1,50,000	28
2	Three-Wheeler – e Rickshaw / e-cart	20% of the Ex-Showroom Price or INR 60,000	3,00,000	10
3	Three-Wheeler	20% of the Ex-Showroom Price or INR 1,00,000	5,00,000	10
4	Car	20% of the Ex-Showroom Price or INR 5,00,000	25,00,000	33
5	Bus	50% of the Ex-Showroom Price or INR 1,00,00,000	2,00,00,000	11
6	E-4w ([CV, Stage Carriage/Maxi Cabs)	20% of the Ex-Showroom Price or INR 6,00,000	30,00,000	9
Total				101

Sr. No	Classification of EV	2022-23	2023-24	2024-25	2025-26	2026-27	Total
1	2W	2,000	8000	20,000	54,000	85,000	1,69,000
2	3W	200	800	2000	4,000	10,000	17,000
3	4W(Non Commercial)	100	400	1400	3,000	7,000	12,000
4	4W(Commercial)	10	40	100	300	650	1,100
5	Buses	10	25	65	200	600	900
	Total						2,00,000

Vehicle Category	Incentive	Maximum Incentive	Number of Electric Vehicles to be incentivized
e-Bicycle	Upfront: 25% of Cost of Bicycle	Rs. 3,000	First 25,000 Bicycle purchased during the policy period
e-2W	Upfront : Fixed Battery: Rs. 5,000/kWh Swappable Battery: Rs. 3000/kWh Scrapping : Rs 5,000	Rs. 30,000 Rs. 15,000 Rs. 5,000	First 10,000 vehicles registered during the policy period
e-Cart	Upfront : Fixed Battery: Rs. 5000/kWh Swappable Battery: Rs. 3000/kWh Retrofit Kit: 15% of cost	Rs. 30,000 Rs. 10,000 Rs.10,000	First 1000 e-Carts registered during the policy period
e-Autos	Upfront : Fixed Battery: Rs. 5000/kWh Swappable Battery: Rs. 3000/kWh Retrofit Kit: 15% of cost Scrapping : Rs 7,500	Rs. 30,000 Rs. 15,000 Rs. 15,000 Rs. 7,500	First 1000 e-Autos registered during the policy period
e-Goods Carrier L5N	Upfront : Fixed Battery: Rs. 5000/kWh Retrofit Kit: 15% of cost Scrapping: 15,000	Rs. 50,000 Rs. 15,000 Rs. 15,000	First 1000 Goods Carrier L5N registered during the policy period
e-Goods Carrier N1	Upfront: Fixed Battery: Rs. 5000/kWh Retrofit Kit: 15% of cost Scrapping: 15,000	Rs. 80,000 Rs. 25,000 Rs. 15,000	First 1000 Goods Carrier N1 registered during the policy period
4 W- e-Cars (Personal)	Upfront: Fixed Battery: Rs. 5,000/kWh Scrapping: 7000	Rs. 1,50,000 Rs. 7,000	First 2000, 4 W- e-Cars (Personal) (including Hybrids as defined in FAME II) registered during the policy period. Applicable only for vehicles with ex showroom price below INR 20 lakhs
4 W- e-Cars (Commercial)	Upfront: Fixed Battery: Rs. 10,000/kWh Scrapping: 7000	Rs. 2,00,000 Rs. 7,000	First 1000, 4 W- e-Cars (Commercial) (including Hybrids as defined in FAME II) registered during the policy period

Vehicle Category	Early Bird Incentive	Maximum Early Bird Incentive
e-Bicycle	Rs. 2000	Rs. 2,000
e-2W, e-Cart, e-Autos, e Goods Carrier (L5N and N1), e-4W (personal & commercial)	Rs 3,500/kWh	Rs. 50,000

Category	Incentive	Maximum Incentive
Private Charging	Infrastructure Incentive: Grant on purchase and installation of charging equipment	Rs. 6,000	Only for the first 30,000 private chargers installed during the policy period.
Public Charging	Reimbursement of GST paid 100% reimbursement of GST paid on the Fast Charging/Swapping Electric Vehicle Supply Equipment (EVSE) procured by private enterprises/individual	Rs. 50,000	Only for the first 50 fast charging /Swapping EVSE installed during the policy period. (Will not be applicable on Chargers under Central Subsidy)
	Upfront electricity infrastructure: Upfront cost on infrastructure for bringing power supply to Electric Vehicle Charging Station	Rs. 5,00,000	Only for the first 50 Public fast Charging/Swapping Stations installed in the state during the policy period. (Will not be applicable on Chargers under Central Subsidy)
	Electricity Duty Exemption: 100% Electricity duty exemption for Public Charging and Swapping stations	For policy period	For policy period

Sr. No	Vehicle segment	Incentive available	Number of vehicles to be incentivised	Maximum incentive per vehicle
1	e-2W (L1 & L2)	INR 5000/kwh	1,00,000	10,000
2	e-3W autos (L5M)	INR 5000/kwh	15,000	30,000
3	e-3W goods carrier (L5N)	INR 5000/kwh	10,000	30,000
4	e-4W cars (M1)	INR 5000/kwh	10,000	1,50,000
5	e-4W goods carrier (N1)	INR 5000/kwh	10,000	1,00,000
6	e-buses* (SRTu)	10% vehicle cos (ex factory)	1000	20,00,000

Road Tax / Vehicle Registration Fees	Manufactured within the State	Manufactured outside the State
Exemption on Road Tax	100% exemption for first 10,000 buyers 75% exemption for 10,001-15000 buyers 25 % exemption after 15000 buyers upto policy period	25% upto policy period
Exemption from Vehicle Registration Fees	100% exemption for first 10,000 buyers 75% exemption for 10,001-15000 buyers 25 % exemption after 15000 buyers upto policy period	25% upto policy period

S No	Type of PCS/SPCS	Incentive amount	Maximum Incentive available per PCS/SPCS	Max number of PCS/SPCS to be incentivised
1	Slow	60% of the cost	INR 10,000	15,000
2	Moderate/Fast	50% of the cost	INR 5,00,000	500
3	Solar Based fast#	70% of the cost	INR 7,00,000	500

Type of Unit	Max Limit	Max Admissible Subsidy
Micro	30% of FCI	Rs 2 Cr
Small		Rs 7 Cr
Medium		Rs 15 Cr
Non MSME		Rs 30 Cr

Criteria	Threshold Value
Min. top speed	40km/hour
Min. acceleration	0.65m/s2
Max. electric energy consumption	Not exceeding 7kWh/ 100km
Warranty	At least 3 years comprehensive warranty including that of battery from the manufacturer

Incentives Description	Incentives
Assured Buyback	6% of total vehicle cost capped at INR 10,000/-
Battery warranty of at least 5 years	4% of total vehicle cost capped at INR 6,000/-

Vehicle Segment	Max vehicle to be supported	Approx. battery size	Approx incentive @10,000 per kWh
Electric 2 wheeler	24,000	2 kWh	20,000/-
Electric 3 wheeler	70,000	5 kWh	50,000/-
Electric 4 wheeler	4000	15 kWh	150,000/-
4 wheeler (SHEV)	1000	1.3 kwh	13,000/-
Electric bus	1000	250 kwh	25,00,000/-

Criteria	Threshold value
Min. top speed	40 km/hr
Min. acceleration	0.65 m/s2
Max. electric energy consumption Not exceeding	7 kWh/100km
Warranty	At least 3 years comprehensive warranty including that of battery from the manufacturer

Sr No	Vehicle Segment	Incentives
1	Assured Buyback,	6% of total vehicle cost capped at INR 10,000/-
2	Battery warranty of at least 5 years	4% of total vehicle cost capped at INR 6,000/-

Category of vehicle	% Of subsidy	The maximum amount of subsidy
Electric Two-wheelers	15%	Rs. 5000/-
Electric Three-wheelers	15%	Rs.12,000/-
Electric Four Wheelers	15%	Rs. 1,00,000/-

Vehicle Segment	Incentive Available ( INR)	No. of Vehicles to be Incentivized	Maximum Incentive per Vehicle (INR)
Electric Two Wheeler (L1 & L2)	5000/kwh	1,00,000	10,000
Electric 3 Wheeler autos (L5M)	5000/kwh	15,000	30,000
Electric 3 Wheeler goods carrier (L5N)	5000/kwh	10,000	30,000
Electric 4 Wheeler cars (M1)	5000/kwh	10,000	1,50,000
Electric 4 Wheeler goods carrier (N1)	5000/kwh	10,000	1,00,000
Electric buses	10% of vehicle Cost	1,000	20,00,000

Vehicle Segment	Scrappage Incentive
Electric Two-Wheeler	INR 7,000
Electric Three-Wheeler	INR 15,000
Electric Four Wheeler	INR 25,000

CHARGING STATION	Incentive
Small Charging Stations	Capital Subsidy of 25% of the value of the charging equipment/machinery for first 300 charging stations up to a Maximum subsidy of INR 1,50,000
Medium Charging Stations	Capital Subsidy of 25% of the value of the charging equipment/machinery for the first 100 stations up to a Maximum subsidy of INR 2,00,000.
Large Charging Stations	Capital Subsidy of 25% of the value of the charging equipment/machinery for the first 100 stations up to a Maximum subsidy of INR 10,00,000.

Vehicle Segment	State Subsidy Amount (in Rs.)	Max ex-factory price to avail incentive (in Rs.)
2 wheeler	Rs. 10,000/- per kWh	1,.50,000
3 wheeler	Rs. 10,000/- per kWh	5,00,000
4-Wheeler	Rs. 10,000/- per kWh	15,00,000