Veltara Energy Router — Modular Snap-In Hybrid Inverter Platform

The problem

India's energy chaos
isn't a power problem.
It's a routing problem.

Every Indian building already has the energy sources it needs. They just don't talk to each other.

🔌

Fragmented Systems, Zero Coordination

A typical Indian building has a solar inverter, a separate UPS/battery, a manual DG changeover switch, and an EV charger on its own circuit. Four separate boxes, four separate brains, zero coordination. When the grid drops, the DG starts regardless of whether solar could handle the load.

4+ boxes · 0 intelligence

⛽

DG Sets Running Blind

India has over 20 million diesel generators. In Tier 2/3 cities, commercial buildings run DG sets 4-8 hours daily during outages — even when rooftop solar sits idle. No inverter on the market integrates DG as a first-class source. The result: ₹15-30/kWh diesel cost when solar could deliver at ₹3-5.

₹15-30/kWh wasted on diesel

🕑

Conversion Losses at Every Stage

AC-coupled systems convert DC solar to AC, then back to DC for battery storage, then back to AC for loads. Each conversion loses 3-5%. Over a year, a 5kW rooftop system wastes 400-800 kWh — enough to power a home for a month — just in unnecessary conversion stages.

400-800 kWh/year lost in conversion

💰

No Tariff Intelligence

Indian DISCOMs charge ₹4-6/unit off-peak and ₹8-12/unit during peak. Yet most inverters have no concept of time-of-day pricing. They charge batteries whenever solar is available and discharge whenever load demands — leaving thousands of rupees of savings on the table every year.

₹20,000-50,000/yr in missed savings

🚫

Buy Everything or Nothing

Need just grid + solar today? You still buy a full hybrid inverter sized for battery and EV you may never add. Want to add battery next year? Rip out the old inverter, rewire, buy a new one. The industry sells fixed-configuration boxes when every site is different.

₹50,000-1,00,000 wasted on oversizing

🚧

Compliance Is an Afterthought

PM Surya Ghar mandates net metering and M2M DISCOM reporting. CEA grid codes require anti-islanding and export limiting. Most installers bolt on third-party meters and hope for the best. Failed compliance means delayed subsidies and blocked grid connections.

Months of subsidy delays

🤔

The real question isn't "how do I generate more power?"

Indian buildings already have solar on the roof, batteries in the UPS room, a DG in the basement, and an EV in the parking lot. The problem is that these sources are isolated silos — each with its own inverter, its own logic, its own switchgear — competing instead of cooperating.

The Energy Router Answer

One intelligent DC bus that connects every source and every load. Modular snap-in modules — buy only what you need, add more later. Firmware-level arbitration that routes energy based on cost, priority, and availability. Not a bigger inverter. A smarter architecture.

See How It Works ↓

The Energy Router doesn't add another box to the mess. It replaces the mess with a single platform.

Key features

Built different.
Engineered for India.

🔌

Modular Snap-In Architecture

Buy only what you need. Each energy source and load is a self-contained module that plugs into the common DC bus. Start with grid + solar, add battery later, then EV. No rewiring, no new inverter — just snap in a new module.

HOT-SWAPPABLE SCALABLE STANDARD INTERFACE

⚙

DG Set Integration

First-in-India native diesel genset module. Soft-start signalling, frequency tracking (48-52 Hz under load), and smooth transfer without transients. The killer differentiator for Tier 2/3 cities.

FIRST IN INDIA SOFT-START

🚗

V2G / Smart Charging

Your EV becomes a 40-80 kWh home battery. V1G smart managed charging available now; V2G bidirectional capability ready for when India's grid protocols mature.

V1G NOW V2G READY

⚖

Smart Load Priority

Firmware-level critical load management. Define 4 priority tiers — medical equipment and refrigeration always powered, ACs and geysers shed during shortage. Changes take effect in under 100ms from the app.

4 PRIORITY TIERS <100ms

📡

IoT & Telemetry

CAN/RS485 inter-module bus, built-in 4G M2M SIM for DISCOM reporting, OTA firmware updates for all modules, cloud dashboard, and machine-to-machine data exchange.

CAN / RS485 OTA M2M

✅

Grid Compliance

Designed ground-up for Indian grid codes. CEA regulations, BIS IS 16221-2, IEC 62116 anti-islanding, active power factor correction (>0.99 PF), and export limiting for net metering compliance under PM Surya Ghar.

CEA BIS IS 16221-2 IEC 62116 PM SURYA GHAR

How it works

From source to load
in five intelligent steps

Source Acquisition

Each module continuously senses its source — solar irradiance, grid voltage/frequency, DG state, battery SoC — and reports availability to the control fabric in real time.

Sub-millisecond sampling · Independent per-module sensing · Fault isolation at source level

DC Bus Aggregation

All sources convert to 400V DC and feed the common bus. DC-coupled architecture eliminates unnecessary AC-DC-AC conversion stages, maximising end-to-end efficiency.

400V nominal DC bus · CLLC resonant topology · SiC MOSFETs for high-frequency switching

Intelligent Routing

The arbitration engine ranks sources by your policy — solar first, then battery, then grid, DG as last resort. Tariff-aware dispatch optimises for cost, not just availability.

100µs control loop · Mode state machine · ToD tariff scheduling · User-configurable priority

Load Distribution

Power is dispatched to loads based on priority tiers. Critical loads are always protected. Non-critical loads are intelligently shed during shortage and restored when capacity returns.

4 priority tiers · <100ms load shedding · Automatic restoration · App-configurable

Telemetry & Optimization

Continuous monitoring feeds an on-device AI model that learns your building's load patterns. It pre-charges batteries before peak tariff, reports savings in rupees, and pushes data to cloud and DISCOM.

OTA updates · 4G M2M telemetry · DISCOM auto-reporting · Predictive dispatch

Snap-in modules

Build exactly what
your site needs

Each module is a self-contained power conversion stage with its own firmware, protection, and communication. Add or remove without rewiring.

Sources

⚡

AC Mains

Bidirectional grid interface. Grid-following & grid-forming modes. Anti-islanding. PF >0.99. M2M DISCOM telemetry.

BASE

⚙

DG Set

Soft-start signalling, frequency detection (48-52 Hz), smooth transfer. Saves 30-50% diesel cost via solar priority.

☀

Solar PV

DC-coupled MPPT. 70-500V input, 1-3 independent strings. ≥99% MPPT efficiency. Shade-adaptive tracking.

🔋

Battery

44-58V LFP, BMS-linked. Cell-level balancing, SoC ±1% accuracy (EKF). Parallel pack expansion. CAN/RS485/SMBus.

Loads / Sinks

🚗

EV / V2G

Bidirectional 7-22 kW. V1G smart managed charging now. V2G vehicle-to-grid when India's protocols mature. OCPP 2.0.

🏠

Home Load

4-tier priority management. Critical loads always powered. Non-critical shed during shortage. App-configurable in <100ms.

🔌

Grid Export

PM Surya Ghar net metering. Export limiting (90% sanctioned load). Anti-islanding. DISCOM M2M compliance reporting.

⚛

H₂ Electrolyzer

Route solar surplus to electrolysis when battery is full. Standard power setpoint interface. Designing for 2035+ costs nothing now.

FUTURE

Technical specifications

VER-6600
Energy Router Core

6.6kW single-phase modular hybrid inverter platform. Module specifications vary.

MPPT Efficiency

THD

Power Factor

DC Bus

Power Ratings

Rated continuous power6.6 kW

DC bus voltage400V nominal

AC output230V ±2%, 50Hz

THD (at rated load)<3%

Power factor>0.99

Peak conversion efficiency≥97%

PV Input

Input voltage range70-500V DC

MPPT channels2 independent

MPPT efficiency≥99%

Max PV input power8 kWp

String monitoringPer-string

Battery

Battery voltage44-58V LFP

Isolation topologyCLLC resonant DAB

Galvanic isolation≥2500V AC

BMS communicationCAN / RS485

Parallel packsUp to 4

Interfaces & Compliance

CommunicationCAN / RS485 / Wi-Fi

M2M telemetryBuilt-in 4G SIM

OTA updatesAll modules

Grid standardBIS IS 16221-2

Anti-islandingIEC 62116

Operating temp-10 to +55°C

CEA Grid Code BIS IS 16221-2 IEC 62116 IEC 62109 PM Surya Ghar CISPR 11 Class B

Use cases

One platform,
every deployment

RESIDENTIAL

Urban Residential — PM Surya Ghar

Solar + battery for bill savings and outage protection under PM Surya Ghar net metering. EV managed to charge from solar surplus. Typical config for a 3-5 BHK home with monthly bill above ₹8,000. Grid export compliance built-in, DISCOM reporting automatic.

TIER 2/3 CITIES

DG Backup Sites

The killer India use case. Unreliable grid, expensive DG running idle, solar on the roof. The Energy Router orchestrates all three and cuts DG runtime by up to 70% in summer months. Nobody does this well today.

EV OWNER

EV Owner Home

Solar charges your EV during the day. V2G feeds your home at night. A 3.3 kW managed EVSE that charges only when solar is surplus — a compelling feature no Indian brand currently markets.

COMMERCIAL

Small Business / Commercial

Multi-source orchestration for offices, retail, and warehouses. Peak demand shaving with battery dispatch, DG fuel optimization, tariff-aware scheduling. The Energy Router flattens demand spikes, avoids expensive peak tariff windows, and maintains process continuity through grid dips.

One Platform.
Every Energy Source.
Total Control.

Ready to Rethink Energy?

One Platform.Every Energy Source.Total Control.

Ready to Rethink Energy?

One Platform.
Every Energy Source.
Total Control.