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Off-Grid Solar for Homes — Reliable Power with Batteries

Jashsun designs and installs robust off-grid solar so your home stays powered without depending on the utility grid—perfect for remote areas and frequent outages.

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24/7 availability

Autonomy with right-sized batteries

Smart energy

Prioritised essential loads

Scalable design

Add panels or batteries later

AMC support

Preventive health checks

What is an Off-Grid Solar System?

An off-grid (standalone) system works independently of the utility grid using PV modules, a solar charge controller/MPPT, a battery bank (Lithium LFP or VRLA), and an off-grid or hybrid inverter. Solar charges the batteries; the inverter powers your home.

  • Core components : Panels, MPPT/charge controller, inverter, batteries, protections & mounting.
  • Autonomy :Typically 4–24+ hours based on capacity and priority loads.
  • Safety: : Proper earthing, surge protection, ventilation, and battery safeguards are standard..
Execution

What Jashsun Does for Your Off-Grid Project

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Load Study & Sizing

Load Study & Sizing

Essential vs. non-essential circuits, usage patterns, autonomy targets, and peak surge analysis (motors/pumps).

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Inverter Design

Battery & Inverter Design

LFP/VRLA selection, C-rate matching, inverter kVA, surge handling, and protections (SPD/isolators/DC-AC MCBs).

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Supply & Installation

Supply & Installation

MNRE-compliant modules, robust structures, correct cable sizing, earthing, and safe battery room layout.

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Commissioning

Commissioning & Training

System testing, safety drills, app setup for SOC & performance, and user training.

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AMC & Support

AMC & Support

Annual maintenance, remote monitoring, firmware updates, and preventive visits.

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Expansion Ready

Expansion Ready

Provision for future battery/array expansion and optional generator integration.

Savings

Benefits of an Off-Grid System

Upsides

Independence : Power when the grid is unavailable or unreliable.

Continuity : Seamless backup for essentials—lights, fans, routers, refrigerators, pumps (as sized).

Control : Prioritise circuits and schedule heavy loads when solar is abundant.

Scalability : Add batteries/panels as needs grow (subject to design constraints).

Lower running cost : Cuts generator fuel, noise, and emissions.

Mechanism

How Off-Grid Solar Works

Implementation

Panels generate DC power; MPPT optimises and charges batteries.

Inverter converts DC to AC to run household loads.

Essential circuits are prioritised; heavy loads run during sun hours.

Monitoring app shows state-of-charge, solar generation, and consumption.

Specifications

Sizing & Battery Choices

Right-Size Your System

Daily energy (kWh): Essentials × autonomy hours.

Peak load (kW/kVA): Include motor/pump starting currents.

Roof area: ~100 sq.ft per kW (varies by module wattage).

Battery Options

LFP (Lithium): Long life, deeper DoD, compact—higher upfront.

VRLA/Lead-acid: Lower cost—needs ventilation and careful DoD management.

Design for recommended DoD and ambient temperatures.

Insights

Discover helpful insights to answer all your common questions.

FAQs

No. Off-grid systems are not covered by typical rooftop subsidy programs which focus on grid-connected systems.

From a few hours to 24+ hours depending on battery capacity, depth of discharge, and your essential load profile.

Yes—subject to inverter and controller limits, you can add panels or batteries as your needs grow.

They need higher inverter kVA and surge handling; we account for this during the load study.

Contact Info

No 1427, Nagappa Industrial Estate, Puzhal, Chennai - 600066 info@jashsunpower.com +91 9884830789 www.jashsunpower.com

Opening Time

Monday - Saturday:

09.30 am to 06.30 pm

Sunday:

Closed

Vacation:

All Sunday is our vacation

Our Services

Site Survey & Feasibility Study Land Selection Installation & Commissioning Engineering Design Procurement Quantitative Study & Technical Design
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