Complete Power Independence
Battery-backed systems that run entirely on their own — built for remote properties, unreliable grid areas, and anyone who wants power that never depends on the DISCOM.
Solar Plus Battery, With No Grid Involved
An off-grid system generates, stores, and supplies its own power with no utility connection at all. Everything you use is drawn from panels or the battery bank they charge — which is why sizing both correctly, for your actual daily and seasonal load, is the most important design decision. Off-grid systems are the right fit for remote/rural areas with no grid access, or urban areas seeing severe outages (2-3 hours of supply a day).
Zero Utility Connection
Generates, stores, and supplies its own power — completely independent of the DISCOM, with nothing to wait on.
Battery Bank Stores Power
Captures daytime surplus so your home stays powered after dark or through cloudy days.
Built for Full Independence
The right fit for remote properties with no grid access, or areas seeing just 2-3 hours of supply a day.
Panels, Battery, and Nothing Else
Sunlight absorption
Panels convert sunlight into DC electricity, wired in series/parallel strings for the right voltage.
String aggregation
A combiner box brings the panel strings together, each protected by its own fuse.
MPPT regulation
The charge controller's Maximum Power Point Tracking continuously finds the panel voltage/current combination producing the most power, adjusting as sunlight and temperature shift.
Battery charging
Regulated DC power charges the battery bank through proper staging (bulk, absorption, float) to protect battery life.
Controller-inverter coordination
The charge controller and inverter share real-time data to prevent deep discharge and manage connected loads.
DC to AC conversion
A pure sine-wave inverter converts stored battery power into standard AC for your appliances.
Power delivery
An automatic transfer switch (ATS) distributes power to your home's circuits, prioritizing essential loads if the battery runs low.
Components Explained
Solar Panels
Sized to charge your battery bank fully on an average sunny day, with margin for cloudy stretches. Panels are built from a few core cell technologies:
- •Monocrystalline — cut from a single silicon crystal, the highest efficiency and most compact option, the standard for space-constrained roofs.
- •Polycrystalline (multicrystalline) — made from multiple silicon crystals, slightly lower efficiency at a lower cost.
- •Bifacial — generates from both the front and rear face, useful on ground-mounts or reflective surfaces where rear-side light gets captured too.
- •TOPCon — an ultra-thin tunnel oxide-passivated contact layer, a newer high-efficiency cell technology.
Off-Grid / Hybrid Inverter
We use grid-connected (hybrid) inverters in our off-grid installs rather than basic off-grid-only units — they're built on newer technology, handle lithium batteries natively, and give you the option to connect to the grid later without replacing equipment:
- •Lithium-optimized — direct integration with the battery management system (BMS) extends battery life to 15-20 years or more.
- •97%+ efficiency — dual MPPT captures more solar across varying sunlight conditions and cuts conversion losses by 5-10%.
- •Rugged performance — handles voltage surges and high-load appliances like water pumps reliably, where grid quality and load patterns are unpredictable.
- •Future-proof — if you connect to the grid or add battery storage (BESS) later, the same inverter supports it, with no rewiring or equipment swap.
Battery Bank
Stores energy for use after dark or during cloudy weather — typically 50-60% of total system cost. Sized and wired in a system voltage of 12V, 24V, or 48V depending on your load, and available in two chemistries:
- •Lithium-ion (LFP) — higher upfront cost, but lasts 15-20 years, tolerates deeper discharge, and needs far less maintenance.
- •Lead-acid — lower upfront cost, but typically lasts only 3-5 years and needs a larger bank for the same usable capacity.
MPPT Charge Controller
Regulates power flow into the batteries using Maximum Power Point Tracking, and manages staged charging — often built into the inverter on modern systems.
Mounting Structure
Positions panels at the optimal tilt angle for your location to maximize daily generation.
Accessories & ATS
DC/AC cabling, MC4 connectors, earthing, lightning arresters, and an automatic transfer switch that routes power to your circuits.
How We Size Your Battery Bank
Battery capacity isn't a guess — it comes from four factors we calculate against your actual load.
Autonomy
How many consecutive low-sun days the battery bank needs to cover — usually sized for at least 1 full day of consumption plus morning usage.
Depth of Discharge (DoD)
Batteries are sized so the system only uses ~90% of rated capacity, keeping 10% in reserve to protect long-term battery health.
Round-Trip Efficiency
Roughly 15% of energy is lost in the charge-discharge cycle itself — battery capacity is sized up to account for this.
Day/Night Load Split
A typical home draws ~70% of its load during the day and 30% at night — the battery only needs to cover the night-time share plus backup.
Because there's no grid to fall back on, off-grid battery banks end up 3-4x larger than a hybrid system's backup battery for the same home.
What an Off-Grid System Costs
Battery capacity typically drives 50-60% of total cost. These are indicative figures for lithium (LFP) battery systems — your free site visit confirms exact sizing and pricing for your load.
| System Size | Battery Capacity | Indicative Price |
|---|---|---|
| 3 kW | 5.1 kWh (lithium) | ₹4,12,000 |
| 5 kW | 5.1 kWh (lithium) | ₹5,50,000 |
| 6 kW | 10.2 kWh (lithium) | ₹8,30,000 |
| 8 kW | 10.2 kWh (lithium) | ₹9,65,000 |
| 10 kW | 10.2 kWh (lithium) | ₹11,15,000 |
These are indicative prices only, based on typical site conditions — actual cost depends on your roof, panel choice, and load. Request a Free Quotation for the latest, exact pricing.
What Drives Off-Grid Pricing
- • The system capacity (kW)
- • The type of solar panels (monocrystalline, polycrystalline, bifacial, or TOPCon)
- • The type of solar inverter
- • The battery voltage and chemistry — systems are wired at 12V, 24V, or 48V depending on load, in lithium-ion (LFP) or lead-acid
No government subsidy applies here. The PM Surya Ghar subsidy (central and Uttar Pradesh state) is reserved for grid-connected systems only. If subsidy eligibility matters to you, ask about our on-grid or hybrid options.
How Off-Grid Solar Actually Works
Battery banks, MPPT charge controllers, and autonomy — explained
A short walkthrough of how panels, MPPT charge controllers, and the battery bank work together to keep your property fully powered, and how to think about autonomy and depth of discharge when sizing your batteries.
- Battery Bank Wiring
- MPPT Charge Controller
- Depth of Discharge
- Sizing Your Battery Bank
Built for Independence, Not Just Savings
Works Without Grid Access
Purpose-built for locations the grid hasn't reached — farmhouses, remote plots, and off-grid buildings.
Uninterrupted Backup
Battery storage keeps critical loads running through outages, regardless of how long or how often the grid goes down.
Sized to Your Load
Battery bank and panel array are sized together against your actual daily consumption, not a generic template.
Full Energy Independence
No monthly utility dependency for the loads you choose to run off the system.
No Net-Metering Wait
Since there's no grid tie-in, there's no DISCOM net-metering approval to wait on before going live.
Expandable Design
Add panels or battery capacity later as your load grows, without redesigning the system.
Trade-offs to know: off-grid systems typically have a longer payback period (6-7 years vs. 2-4 for on-grid) and carry battery replacement costs over the system's life.
From Load Assessment to Switched-On
Site & Load Assessment
We measure your actual daily consumption and available roof/ground space to size the panel array and battery bank correctly.
Mounting Installation
Panels are mounted at the optimal tilt angle for your location, on rooftop or ground-mount structures.
Battery Bank & Charge Controller Setup
The battery bank is installed in a ventilated enclosure, wired through the MPPT charge controller with proper fusing and staging.
Inverter & ATS Wiring
The inverter and automatic transfer switch are connected to your home's circuit panel, with essential loads prioritized.
Commissioning & Load Testing
We test the full system under real load, confirm battery charge/discharge behavior, and hand over monitoring access.
Which One Is Right for You?
| Comparison | On-Grid | Off-Grid | Hybrid |
|---|---|---|---|
| Grid connection | Required | Not required | Required (net-metered) |
| Battery storage | |||
| Works during a power cut | Yes (selected circuits) | ||
| PM Surya Ghar subsidy eligible | Grid-tied capacity only | ||
| Net-metering credits | |||
| Typical payback period | 2-4 years | 6-7 years | 3-5 years |
| Relative upfront cost | Lowest | Higher (full battery bank) | Highest before subsidy; net cost often beats off-grid |
| Best suited for | Homes with reliable grid supply | Remote or grid-unreliable areas | Homes wanting savings + backup power |
Off-Grid Solar FAQs
This is called 'autonomy' — how many consecutive low-sun days your battery bank can cover. It's a deliberate design choice: more autonomy means a bigger (and costlier) battery bank. We size this against your real usage and local weather patterns during the site visit.
Plan Your Off-Grid System
Tell us about your location and load requirements — we'll size a system and give you a fixed, no-obligation quote.