Infrastructure Design

The Network
That Never Fails

eTreaT's Spark deployment strategy is engineered around one principle: no EV driver should ever be more than 25 km from a working fast charger.

50km

Spark Spacing

Maximum distance between two consecutive SPARK stations on any deployed highway.

25km

Max Reach

With bidirectional coverage, the maximum distance from any point to the nearest SPARK station.

80%

#SparkUpTo80

Charge only to 80% for maximum speed, battery health, and faster throughput for all drivers.

99.5%

Target Uptime

Remote monitoring, predictive maintenance, and rapid response teams ensure maximum availability.

Deployment Visualisation

Spark Corridor Layout

The distributed placement model ensures blanket coverage across any highway corridor. Each Spark station covers 25 km in each direction.

NATIONAL HIGHWAY 0 km 50 km 100 km 150 km 200 km SPARK 1 SPARK 2 SPARK 3 SPARK 4 SPARK 5 SPARK Station (120kW) 25 km coverage zone 25 km midpoint 200 km corridor = 5 SPARK stations

Above: Illustrative 200 km highway corridor with 5 SPARK stations. Green zones show overlapping 25 km bidirectional coverage.

Charging Philosophy

#SparkUpTo80

The most important number in EV charging isn't 100. It's 80. Here's why eTreaT has built an entire protocol around it.

The Science Behind 80%

EV batteries use lithium-ion chemistry. The charging curve is not linear — the first 80% charges rapidly, while the final 20% requires a slower "top-up" to protect cell chemistry. This is called CC-CV charging (Constant Current, then Constant Voltage).

Charging to 80% consistently means:

2–3× faster than completing a full 100% charge

Battery longevity — reduced degradation over cycle life

More vehicles served at each station per day

80% range is sufficient to reach the next SPARK station

Charging Speed Comparison

Time to reach each charging level at 120kW DC

0 → 80% (#SparkUpTo80) ~25–30 min
80%
0 → 90% ~45 min
90%
0 → 100% ~70–80 min
100%

Conclusion: At 80%, you're back on the road in half the time. The next SPARK is 50 km away. You have more than enough range.

Rollout Strategy

Phased Deployment

eTreaT's network grows corridor by corridor, using traffic data, EV density, and land partner availability.

Phase 1 — Chhattisgarh Corridors

Deploy SPARK stations on the Raipur–Bilaspur, Raipur–Jagdalpur, and Raipur–Durg national highway stretches. Establish 15–20 SPARK units as the proof-of-concept network.

Phase 2 — Central India Expansion

Extend SPARK to Madhya Pradesh and Odisha corridors. Begin HUB installations at high-traffic nodes. First 5 SPOT deployments in Raipur city commercial zones.

Phase 3 — Regional Saturation

Full corridor coverage across all NH routes in Phase 1 & 2 states. Introduce second-generation HUBs with expanded amenities and 240kW capacity.

Phase 4 — National Presence

Target 500+ SPARK nodes across 10 states, with HUB anchor stations at every major junction. Open franchise and institutional partnership models.