Su-vastika 2.5kVA Solar Hybrid PCU with MPPT: Features & Mobile App
Smart solar in a compact size. The Su-vastika 2.5kVA solar hybrid PCU combines MPPT solar charging with Bluetooth + Wi-Fi connectivity, so you can monitor solar generation, battery charge and load sharing live on a dedicated mobile app. Here's everything the 2.5kVA model can do — and how it compares with a conventional PCU. New to the concept? Start with what an AI-based solar PCU is and how it works.
MPPT Solar Charging
- High efficiency: MPPT (Maximum Power Point Tracking) optimises panel output, harvesting up to 30% more energy than PWM controllers.
- Fast charging: batteries reach full charge noticeably faster than with a PWM charge controller.
- Wide PV window: the 2.5kVA comes in 24V models that accept up to 110V from the solar array and support about 1000W of panels (540W panels work too) — ideal for a 2.4kWh lithium battery or two 200Ah tubular batteries.
Hybrid Power Management: Grid Sharing with Solar
The PCU constantly decides the cheapest, cleanest way to charge the battery:
- Solar short? Grid tops up. If the set charging current is 15A and panels deliver only 10A, the PCU draws the remaining 5A from the grid — that's grid sharing with solar energy.
- Solar sufficient? Grid steps back. When panels produce more than the battery needs, charging runs on solar alone.
- UPS-grade switching: on a power cut the PCU switches to battery in milliseconds, so computers and TVs never blink during load shedding or solar/grid transitions.
Smart App Integration (Bluetooth + Wi-Fi)
- Real-time monitoring: live solar generation, battery SOC, overload status, grid/battery/solar power flow, load consumption and system efficiency.
- Remote control: set priority modes (Solar > Grid > Battery or custom), battery charging/discharging limits, and load scheduling to run appliances during solar peak hours.
- Alerts & diagnostics: push notifications for overload, overheating, low battery, battery-health and firmware reminders.
- Historical logging: daily, weekly and monthly energy reports to optimise usage.
Battery & Load Management
- Compatibility: works with lithium-ion and tubular/lead-acid batteries, with protection against overcharging, deep discharge and short circuits.
- User-defined profiles: custom charge voltages and discharge cutoffs extend battery life.
- Priority load support: dedicated UPS output keeps critical appliances running; handles high-startup loads (refrigerators, pumps) up to 2× rated capacity.
- Energy-saving modes: Solar Priority Mode, Eco Mode for peak-tariff hours, and off-peak grid charging when solar is insufficient.
- Scalable: expandable with additional panels or batteries as your needs grow.
Technical Snapshot
| Parameter | 2.5kVA Solar Hybrid PCU |
|---|---|
| Capacity | 2.5kVA / 2500VA (~2kW load) |
| Solar input | Up to 110V DC, ~1000W panel support (MPPT) |
| Battery | 24V — 2.4kWh lithium or 2 × 200Ah tubular |
| Output | Pure sine wave, 230V AC / 50Hz |
| Efficiency | >90% solar-to-load/battery |
| Connectivity | Bluetooth 5.0 + Wi-Fi (local & remote) |
| Certification | BIS certified |
2.5kVA Solar Hybrid PCU vs Conventional PCU
| Feature | 2.5kVA Solar Hybrid PCU | Conventional PCU |
|---|---|---|
| Solar tracking | MPPT, ~99% tracking efficiency | PWM (70–80% efficiency) |
| Remote monitoring | Yes — Bluetooth/Wi-Fi app | Manual checks only |
| Grid-solar hybrid mode | Yes — dynamic sharing | Limited or none |
| Battery compatibility | Lithium + lead-acid/tubular | Lead-acid only |
| Load management | Priority UPS output | Basic load support |
What Users Gain
Cost savings — maximised solar use slashes electricity bills and avoids generator fuel during outages. 24/7 reliability — uninterrupted power for medical devices and work-from-home setups. Battery longevity — smart charging algorithms extend battery life by 20–30%. Easy troubleshooting — app-based diagnostics simplify maintenance, and OTA firmware updates add new features over time. The intuitive dashboard even shows daily insights like "Today's Solar Savings: ₹120". India's shift to battery-backed solar is accelerating — pv magazine India reports how such systems are replacing diesel generators nationwide.
Frequently Asked Questions
Q. How many solar panels can the 2.5kVA PCU take?
About 1000W of panels (e.g. two 540W panels), with PV input up to 110V on the 24V model.
Q. Which batteries does it support?
A 2.4kWh lithium battery or two 200Ah tubular batteries (24V system), with user-defined charge profiles for either chemistry.
Q. Can I control it when I'm away from home?
Yes — Bluetooth works locally and Wi-Fi enables full remote monitoring and control through the mobile app.
Q. What loads can it run?
Around 2kW of household load, with high-startup appliances like refrigerators and pumps handled up to 2× rated capacity for short bursts.
Ready for app-controlled solar power?
The BIS-certified Su-vastika 2.5kVA solar hybrid PCU brings MPPT efficiency and smartphone control to your home.
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Disclaimer: This article is written by Kunwer Sachdev, mentor of Su-vastika. Kunwer Sachdev is no longer associated with Su-Kam Power Systems Ltd. in any capacity. Anyone dealing with Su-Kam should be aware that Kunwer Sachdev has no association with the Su-Kam brand or company.