EV charging
We are pioneers in EV charging infrastructure. We design, build and install charging for hosts, fleets and networks, then operate and maintain it. Where the grid connection is the constraint, we add battery storage, so fast chargers can run without an oversized connection.
Build · install · run · maintain
Six ways we work on charging, from a first drawing to chargers already in service, whoever installed them.
Site survey, load and tariff study, electrical design, civil works, charger supply from vetted makers, installation, commissioning and onboarding to your charging software.
Survey, Design, Build, Commission
Already chosen a charger or a charging network? We install, test and commission to the maker's requirements and the Central Electricity Authority's (CEA) safety regulations for charging stations.
Prepare, Install, Test, Hand over
Remote monitoring over the Open Charge Point Protocol (OCPP), preventive maintenance, repairs and spares, and the records the CEA requires owners to keep. If you'd rather not run the station yourself, we can operate it for you on the charging platform you choose.
Monitor, Inspect, Fix, Report
A battery, charged steadily from a smaller connection or from solar, delivers the bursts fast chargers need.
Size, Buffer, Charge, Manage
AC or DC for e-3W, cabs, delivery vans and buses, scheduled around your shifts and the tariff. Under Tamil Nadu’s EV tariff (TNERC T.O. 6/2025; revision pending as of September 2026) the cheapest slot is 9 am–4 pm; charging within existing HT premises may instead be billed at the premises’ own tariff.
Duty cycle, Charger mix, Schedule, Maintain
For chargers already in the ground: a health check, repairs, and a plan for older units, such as Bharat AC-001/DC-001 chargers, early sites without OCPP, or car-only sites that need light-EV points.
Inspect, Repair, Upgrade, Maintain
Hosts & fleets
Source: Wikipedia, National Highway 66 (India); National Highway 44 (India) (opens in a new tab) (2026).
Source: DT Next, EV charging facility made mandatory for bigger buildings in Tamil Nadu (opens in a new tab) (8 November 2025).
Travellers on the NH44 and NH66 corridors, both of which end at Kanyakumari. DC fast charging for people passing through, and AC for overnight guests.
Car parks where visitors stay for an hour or more: AC and light-EV points sized for dwell time, with load management so a busy weekend doesn’t trip the supply.
Staff, visitors and fleet vehicles, charged within your existing premises, with separate EV metering where it pays.
Tamil Nadu's building rules (amendment reported November 2025) require a charging point for every required parking space in new residential buildings above a size threshold, and fast charging for at least 10% of parking in commercial, industrial and institutional buildings above 300 m² of FSI area. We design load-managed systems, so a charger per bay doesn't mean a bigger transformer.
Workplace and fleet charging within your sanctioned load, scheduled around your processes and the tariff.
Approvals and safe clearances around fuel dispensers designed in from the first drawing.
e-3W, cab and delivery fleets. For e-bus depots: balance-of-plant, power quality, and operations and maintenance (O&M).
A local installation and O&M partner in southern Tamil Nadu: you run the app, roaming and pricing, and we keep the hardware working.
Charger types
Match the charger to the vehicle and to how long it stays.
| Charger | Power | Best for | Standards (device / connector) |
|---|---|---|---|
| Light EV AC point | up to 7 kW | Scooters, e-autos and small cars parked for a while | Device IS 17017-22-1Connector IS 60309 socket; vehicle inlet IS 17017-2-7 or 2-2 |
| Light EV DC (Type 6) | up to 12 kW | Scooters and e-autos needing a quick top-up | Device IS 17017-25Connector IS 17017-2-6 |
| LECCS (Type 7), India's combined AC/DC connector for light EVs | up to 7 kW AC / 12 kW DC | 2W and 3W | Device IS 17017-31Connector IS 17017-2-7 (BIS, 2023) |
| Type 2 AC | 7.4 / 11 / 22 kW | Cars parked for hours: homes, offices, hotels | Device IS 17017-1Connector IS 17017-2-2 |
| CCS2 DC | 50–250 kW | Cars on highways and at city fast-charging hubs | Device IS 17017-23Connector IS 17017-2-3 |
| CCS2 DC high power | 250–500 kW | Buses and trucks | Device IS 17017-23Connector IS 17017-2-3 |
Bharat AC-001, Bharat DC-001 and CHAdeMO are not in the 2024 standards annex. Many early sites still use them, and they're candidates for an upgrade. Charger audits, repair & upgrades
The car's on-board charger, not the wall box, often limits AC charging speed.
Source: Ministry of Power (copy hosted by WBSEDCL), Guidelines and Standards for Electric Vehicle Charging Infrastructure, 2024 (opens in a new tab) (17 September 2024).
Battery-buffered charging
Cheapest 09:00–16:00 Dearest 06:00–09:00 · 18:00–22:00
The grid, and solar if you have it, charges the battery within the connection you already have.
When a vehicle plugs in, the charger draws from the grid and the battery together.
The battery recharges between sessions, ideally in cheaper hours or from solar.
Whether a buffer beats a bigger connection depends on how busy the chargers will be, your tariff category, fixed and demand charges, and upstream costs. EV charges can change with the next tariff order, so we model the current position and a bigger-connection option side by side.
The Ministry of Power's 2024 guidelines allow public charge point operators to complement stations with storage, and describe solar carports with battery storage as an alternative to grid-dependent charging. NFPA 855 (2026) covers EV charging with integrated storage.
In Tamil Nadu, the EV charging tariff (LT-VII / HT-V) is cheapest from 9 am to 4 pm and dearest from 6–9 am and 6–10 pm (TNERC Tariff Order No. 6 of 2025). A battery can store daytime energy for evening charging.
In forceRevision pending as of September 2026Source: Ministry of Power (copy hosted by WBSEDCL), Guidelines and Standards for Electric Vehicle Charging Infrastructure, 2024 (opens in a new tab) (17 September 2024).
Source: Energy-Storage.news, National Fire Protection Association releases NFPA 855 ESS safety standard, 2026 edition (opens in a new tab) (18 September 2025).
Source: TNERC, Tariff Order No. 6 of 2025 (opens in a new tab) (30 June 2025, effective 1 July 2025).
Process
Most charging delays come from the connection and the paperwork, not the charger. We start both on day one.
Parking, cable routes, existing supply, space for a battery if needed.
Deliverable: Survey notes & photos
Sanctioned load, tariff category (a separate EV service or within your premises), charger mix.
Deliverable: Connection options
Protection, earthing, surge protection, cabling, civil works, signage.
Deliverable: SLD & layout
Connection or load-change application with the required documents, plus any site-specific approvals.
Deliverable: Application file
Foundations, cabling, terminations, charger mounting.
Deliverable: Installation records
Safety tests, Electrical Inspectorate clearance, connection to your charging software.
Deliverable: Commissioning report
Monitoring, maintenance, repairs and compliance records.
Deliverable: Monthly report
Rules at a glance
Setting up and operating a charging station is a de-licensed activity: any entity can do it by following the Ministry of Power guidelines.
DISCOMs must connect within 3 days in metro areas, 7 in other municipal areas, 15 in rural areas and 30 in hilly rural areas, or 90 days where the network must be extended or a substation built.
DISCOMs must offer LT connections up to 150 kW for charging stations.
The national guidelines ask DISCOMs to supply charging stations on a single-part tariff no higher than the average cost of supply (ACoS) until 31 March 2028: 0.7 × ACoS in solar hours (9 am–4 pm) and 1.3 × ACoS at other times. Each station needs separate metering, and DISCOMs may provide sub-metering behind an existing HT connection. In Tamil Nadu, the TNERC EV tariff below sets the rates billed.
Service charges at public and community stations are capped until 31 March 2028: AC ₹3.00 / ₹4.00 per kWh and DC ₹11.00 / ₹13.00 per kWh (9 am–4 pm / other hours), excluding GST and land cost, subject to annual review. Stations must display the rate.
Chargers must be type-tested at a NABL-accredited laboratory to the BIS standards in the guidelines’ Annex I.
Open protocols such as OCPP, OCPI, UEI and OpenADR are recommended.
The CEA's safety regulations for charging stations require, among other things: no adaptors or extension leads; sockets at least 800 mm above ground; the vehicle within 5 m of the charging point; earth-continuity monitoring; lightning protection; fire-retardant, halogen-free enclosures. The owner must ensure the maker's specified RCD and station tests are carried out, and keep inspection and test records for at least 7 years.
In Tamil Nadu, EV charging has its own tariff categories (LT-VII and HT-V, which also cover battery swapping and charging stations), with time-of-day (ToD) energy charges that are lowest from 9 am to 4 pm. Smart ToD meters are mandatory, and a separate EV service can be taken within existing premises.
Cheapest 09:00–16:00 Dearest 06:00–09:00 · 18:00–22:00
Source: Ministry of Power (copy hosted by WBSEDCL), Guidelines and Standards for Electric Vehicle Charging Infrastructure, 2024 (opens in a new tab) (17 September 2024).
Source: CEA, CEA (Measures relating to Safety and Electric Supply) Regulations, 2023, Chapter XI (opens in a new tab) (8 June 2023).
Source: TNERC, Tariff Order No. 6 of 2025 (opens in a new tab) (30 June 2025, effective 1 July 2025).
Rules change. We check the current position for every project.
O&M
Out-of-order chargers are public charging's most visible weakness. Most of the fix is routine: remote monitoring, regular inspection and a stock of the parts that wear.
Heartbeat alarms, stuck sessions, remote reset.
Connectors, cables, thermal scans, RCD and earth-continuity tests.
Inspection and test logs kept for at least 7 years.
We report availability, session success and time to repair every month. Targets, response times and exclusions are agreed site by site in each annual maintenance contract (AMC).
See the full charger O&M scope
Source: CEA, CEA (Measures relating to Safety and Electric Supply) Regulations, 2023, Chapter XI (opens in a new tab) (8 June 2023).
Partners
National networks bring the app, roaming and payments. We bring local design, installation and maintenance in southern Tamil Nadu. If you run a network or make chargers and need an installation and O&M partner here, let's talk.
Subsidies
₹2,000 crore of the ₹10,900 crore PM E-DRIVE scheme is for public charging, and the charging component runs to 31 March 2028. Proposals come from central ministries, central public-sector enterprises (CPSEs) and states or union territories through their nodal agencies, which may set up stations themselves or select charge point operators by transparent bidding. Support depends on the location:
For a private host, that usually means you can't apply directly. We follow tenders where we can take part as contractor or O&M partner. State incentives change, so we check what's open when we scope your project.
Source: Ministry of Heavy Industries, PM E-DRIVE operational guidelines for public charging stations (opens in a new tab) (26 September 2025).
Source: Autocar Professional, PM E-DRIVE scheme extended till FY28 end (opens in a new tab) (8 August 2025).
Source: Renewable Watch, Ministry of Power issues guidelines for installation and operation of battery swapping and charging stations (opens in a new tab) (15 January 2025).
More answers in InsightsStart with the connection
Tell us the site, the vehicles and how long they stop. We'll tell you what the connection can carry, and whether a battery helps.
