Highway charging is one of the most important parts of India's EV ecosystem because it determines whether drivers can confidently use electric vehicles beyond routine city travel.
Unlike home or destination charging, EV charging stations on highways must serve drivers who may have planned an entire journey around a specific stop. That makes site access, charger reliability, real-time availability, grid capacity and backup options just as important as peak charging power.
A successful corridor site is therefore not simply “a fast charger beside a road.”
It is a complete travel, electrical and operating system designed around dependable turnaround.
Why EV Charging Stations on Highways Are Different
Highway charging has a different operating profile from urban destination charging.
Drivers generally care about:
Reliable charger availability
Minimal route detour
Useful charging speed
Easy entry and exit
Toilets and food
Safe access after dark
Transparent pricing
Backup charging options
Demand can also be uneven.
Weekdays, weekends, holidays, fleet movement and seasonal travel can produce substantially different utilisation patterns.
Operators should therefore plan for both normal demand and peak congestion rather than sizing a site using one average traffic figure.
Current Highway EV Charging Guidance in India
The Ministry of Power's 2024 charging-infrastructure guidelines suggest that EV charging stations may be located every 20 km on both sides of highways, expressways and major roads.
For long-range and heavy-duty EVs, the framework separately suggests higher-power charging facilities at 100 km intervals on each side of designated corridors, including at least two chargers of minimum 240 kW capacity for the specified heavy-duty use case.
These figures are useful national corridor-planning guidance.
They should not be interpreted to mean:
Every 20 km location will be commercially viable
Every private operator must install identical hardware
Traffic demand will automatically exist
Every corridor needs the same charger mix
Real deployment still requires site-level feasibility analysis.
PM E-DRIVE and Highway Charging Infrastructure
PM E-DRIVE includes ₹2,000 crore for public EV charging infrastructure across India, including charging deployment in cities and along highways.
However, this is not a blanket cash subsidy automatically paid to every private investor who installs a charger.
The current EVPCS framework operates through eligible government entities and nodal agencies, with different treatment for different location categories.
A highway project should therefore be commercially evaluated before subsidy, and confirmed scheme support should be treated separately.
Site Selection for EV Charging Stations on Highways
Location usually determines project quality before charger brand does.
1. Measure Relevant EV Traffic
Do not use total highway traffic alone.
Estimate:
Passenger EV traffic
Electric taxi movement
Fleet activity
E-bus potential
E-truck potential
Direction-wise vehicle flow
Weekend demand
Holiday peaks
Seasonal traffic
A busy highway can still be a weak charging site if EV drivers have no practical reason to enter the property.
2. Check Entry and Exit
A good charging location should minimise:
U-turns
Long service-road detours
Difficult merges
Unsafe road crossings
Confusing internal access
For highway charging sites, five extra minutes of awkward access can matter more than a small difference in charger power.
The driver's real metric is:
time from highway → charger → back to highway
not charger kW alone.
3. Map Existing Charging Competition
Before selecting the property, identify nearby:
Charging stations
Connector types
Charger power
Number of charging bays
Reliability
Pricing
Operating hours
Parking restrictions
Amenities
A valuable new site may:
Fill a genuine corridor gap
Add redundancy to a weak stretch
Serve a fleet requirement
Add higher-power charging
Improve reliability in an existing cluster
Use the SpeedCharge Station Finder and EV Charging Site Selection Guide during feasibility analysis.
4. Evaluate Amenities
Charging and normal travel breaks often happen at the same time.
Useful amenities can include:
Clean toilets
Food
Drinking water
Seating
Shade
Convenience retail
Family-friendly facilities
Safe parking
MoRTH's Wayside Amenities programme plans facilities at roughly 40–60 km intervals on National Highways, with EV charging among the planned facilities alongside fuel, food, toilets and parking.
Existing fuel stations, restaurants and wayside properties can therefore be strong candidate locations.
5. Check Night-Time Safety
Highway charging must also work after dark.
Evaluate:
Lighting
CCTV
Active staff
Visibility
Emergency assistance
Pedestrian access
Security
A high-power station that users avoid at night is not a strong corridor asset.
Match Charger Power to Actual Vehicles
Installing the largest charger available does not automatically maximise utilisation or customer experience.
Actual DC charging power can be limited by:
Vehicle maximum DC acceptance
Battery State of Charge
Battery temperature
Charging curve
Site power availability
Charger power-sharing logic
Vehicle software
A 240 kW charger therefore does not guarantee that every vehicle receives 240 kW throughout the session.
More Connectors vs Higher Power
The original draft treated additional connectors as generally superior to higher power.
That is too broad.
There are cases where more connectors improve:
Redundancy
Queue management
Simultaneous sessions
There are also cases where higher-power charging improves:
Turnaround
Fleet utilisation
Highway trip time
Compare at least two configurations.
Configuration A
Several moderate-power chargers.
Configuration B
Fewer higher-power chargers.
Then model:
Vehicles served per hour
Average kWh/session
Charging curve
Peak queues
Grid capacity
Capex
Electrical infrastructure
Expected future vehicle capability
The correct answer is a throughput and economics calculation.
Understand Shared-Power Chargers
A dual-gun DC unit may have one total cabinet rating that is dynamically divided between simultaneous vehicles.
For example, do not assume that a charger labelled 120 kW automatically provides:
120 kW + 120 kW simultaneously
Check:
Cabinet output
Per-connector maximum
Simultaneous output
Dynamic sharing logic
Minimum power allocation
These specifications should be clear before procurement.
Grid Planning for EV Charging Stations on Highways
Grid feasibility should be assessed before committing to a long lease, major civil work or expensive charging hardware.
Obtain site-specific information on:
Available sanctioned load
LT/HT connection
Existing transformer
Spare capacity
Required augmentation
Distance from supply
Utility deposits
Connection work
Future expansion
India's national charging framework permits EV charging-station owners to opt for LT connections up to 150 kW, subject to the applicable process and site conditions.
This does not mean every 150 kW project can connect without upstream work.
Does Every Highway DC Charger Need a Transformer?
No.
Transformer requirements depend on:
Existing supply
Existing transformer
Spare capacity
Charger load
Other site demand
DISCOM requirements
Future expansion
A fuel station with existing electrical infrastructure and a greenfield charging plot can have completely different project costs even when both install the same DC charger.
Get written electrical feasibility before finalising project economics.
Battery-Buffered Highway Charging
Stationary battery storage can sometimes reduce peak grid draw while allowing the charging system to provide higher output for short periods.
Potential uses include:
Peak-demand management
Limited-grid sites
Solar integration
High-power charging support
But battery buffering does not automatically eliminate the need for a grid upgrade.
Model:
Battery capacity
Battery power
Daily charging throughput
Battery cycling
Round-trip losses
Grid tariff
Maintenance
Replacement cost
Capital cost
Compare storage directly with the conventional infrastructure-upgrade option.
Managing Holiday and Peak Queues
Highway charging demand can become concentrated around:
Long weekends
Festivals
Holiday travel
Tourist seasons
Fleet peaks
A site should plan:
Clearly marked bays
Defined waiting area
Queue instructions
Live status
Customer assistance
Peak-period staff where justified
Should Highway Chargers Force an 80% Limit?
No universal 80% rule should be imposed simply because many EV charging curves taper at higher State of Charge.
Different vehicles taper differently.
A driver may reasonably need more energy because:
The next charger is far away
The next station is unreliable
Weather affects range
Route elevation increases consumption
Backup options are limited
Instead of a rigid limit, busy sites can improve throughput using:
Charging etiquette
App notifications
Queue visibility
Idle fees after charging ends
Transparent charger status
The goal is efficient bay use—not an arbitrary battery percentage.
Reliability Is a Core Highway Product
On a highway, charger downtime has greater consequences than at many urban locations because the next alternative may be much farther away.
Design for graceful degradation.
Evaluate:
Multiple connectors
Independent modules where appropriate
Remote monitoring
Automated fault alerts
Spare parts
Maintenance response
Backup corridor locations
A single fault should ideally reduce available capacity rather than close the entire charging stop.
Real-Time Availability Matters
A useful charging platform should distinguish where technically possible between:
Available
Charging
Reserved
Faulted
Offline
Incorrect availability information can create more frustration than no live information because drivers make route decisions based on it.
India's current charging framework explicitly encourages connected and interoperable charging infrastructure.
Payment Should Be Simple
Highway users may be travelling outside their normal city and may not already have the operator's app.
Evaluate:
QR
UPI
App payment
RFID
Guest charging
Roaming where supported
Digital receipt
Do not assume every Indian network already supports universal roaming.
Interoperability and universal commercial access are not the same thing.
Highway Charger Pricing
Do not build station economics using customer tariff alone.
Basic charging revenue is:
Billable kWh × Realised Customer Price
From this, account for:
Electricity
Software
Payment processing
Maintenance
Site rent/revenue share
Staff
Connectivity
Taxes
Downtime
Financing
Asset depreciation
Run at least:
Conservative + Base + Strong Utilisation
scenarios.
Utilisation Matters More Than Nameplate Power
A very high-power charger with limited usage can have weak asset utilisation.
Track:
Sessions/day
kWh/session
kWh/day
Average charging power
Peak simultaneous users
Queue duration
Charger uptime
Energy sold per connector
Repeat-user share
These metrics tell you whether expansion should mean:
Another connector
Higher power
More grid capacity
No expansion yet
Revenue Beyond EV Charging
A highway station may create additional commercial value through:
Food and beverage
Retail
Parking
Advertising
Fleet contracts
Property footfall
But do not assume every charging customer automatically buys food or retail products.
Model:
Charging revenue
and
Ancillary revenue
separately.
Existing Highway Stop vs Greenfield Charging Site
Existing properties can offer:
Existing road traffic
Amenities
Toilets
Staff
Security
Commercial land
Existing power infrastructure
A greenfield site can provide greater layout flexibility but may require more investment in:
Power
Civil works
Amenities
Security
Access
Neither option is universally better.
Compare total installed cost and realistic demand.
PM E-DRIVE Support for Highway Projects
Current PM E-DRIVE EVPCS rules classify charging locations into different categories.
Government-controlled toll plazas and Wayside Amenities on highways and expressways can fall under Category B, while other highway or expressway sites can fall into other categories such as Category C.
Different percentages of support can apply to upstream infrastructure and EVSE according to location category.
The important investment rule is:
Do not include subsidy in base-case ROI until eligibility is formally established.
Highway Charging for Electric Trucks and Buses
Heavy-duty charging should be treated as a distinct infrastructure problem.
Evaluate:
Battery capacity
Duty cycle
Required turnaround
Vehicle geometry
Parking length
Turning radius
Charger output
Grid capacity
Driver rest periods
Freight traffic
The Ministry of Power's corridor framework separately recognises long-range and heavy-duty vehicles with higher-power charging guidance at wider corridor intervals.
Do not simply scale up a passenger-car charging bay.
Corridor Planning Is Bigger Than One Site
A strong charging site can still sit on a weak route.
Drivers need confidence that:
The next charger is reachable
Backup charging exists
Status information is reliable
Connectors are compatible
Both travel directions are covered
A corridor should therefore be analysed as a network rather than a collection of isolated pins.
Highway Charging Site Checklist
Area | Key Question |
|---|---|
Traffic | How many relevant EVs use the route? |
Access | Is entry and exit convenient? |
Competition | What reliable chargers already exist? |
Grid | What load is actually available? |
Charger mix | What vehicles will use the site? |
Redundancy | What happens if one connector fails? |
Amenities | What can drivers do while charging? |
Safety | Is the location usable after dark? |
Software | Is live status reliable? |
Payment | Can occasional users start easily? |
Economics | Does the project work without subsidy? |
Expansion | Can charger/grid capacity scale later? |
How SpeedCharge Can Support Highway Charging Projects
Businesses and property owners can begin with the EV Charging Site Selection Guide to evaluate corridor demand, competition and electrical feasibility.
For deployment planning, review:
Highway hotels, restaurants, fuel-station operators and other property owners should request a complete site-feasibility analysis before selecting charger power.
Final Thoughts
A dependable network of EV charging stations on highways requires far more than high charger power.
The strongest sites combine:
route demand + easy access + suitable charger mix + grid feasibility + redundancy + live information + amenities + reliable operations
Confirm the grid before buying hardware.
Match charger power to real vehicles instead of marketing numbers.
Design around failure as well as normal operation.
Treat government support as conditional until approved.
Frequently Asked Questions
FAQ
Frequently asked questions
1. How far apart should EV charging stations on highways be?
India's Ministry of Power 2024 guidance suggests charging stations may be located every 20 km on both sides of highways, expressways and major roads. Long-range and heavy-duty charging has separate higher-power corridor guidance.
2. Which charger power is best for a highway EV charging station?
There is no universal best rating. Select power according to vehicle mix, charging curves, expected dwell time, required throughput, grid capacity and future demand.
3. Does every highway fast charger need a dedicated transformer?
No. Transformer requirements depend on existing supply infrastructure, spare capacity, charger demand and DISCOM requirements.
4. Is it better to install more chargers or one higher-power charger?
It depends. More connectors can improve redundancy and simultaneous throughput, while higher-power charging can reduce dwell time for compatible vehicles. Model both configurations.
5. Should highway EV drivers always stop charging at 80%?
No. Drivers should take enough energy to reach the next reliable stop with an appropriate reserve. Charging curves and route requirements vary between vehicles and journeys.
6. Can highway charging projects receive PM E-DRIVE support?
Eligible projects can receive support through the PM E-DRIVE EVPCS framework, but eligibility depends on location category, eligible entities and the nodal-agency process. It is not an automatic private-investor reimbursement.
7. Are food and washrooms important at highway chargers?
Yes. Charging often overlaps with normal travel breaks, so toilets, food, seating, lighting and safe parking improve overall usability.
8. Can battery storage reduce the grid requirement for a highway charger?
It can reduce peak grid demand in some system designs, but battery size, utilisation, efficiency, degradation and capital cost must be compared with a conventional grid upgrade.
9. What metrics should a highway charging operator monitor?
Useful metrics include uptime, successful sessions, kWh delivered, average charging power, queue time, concurrent sessions, faults, payment failures and connector utilisation.
10. What is most important when building a highway charging site?
Reliability, route relevance, easy site access, electrical feasibility and the right charger configuration generally matter more than simply installing the highest available charger power.