Off-Grid Solar with Battery

Stand-alone systems for places without a reliable grid. Power your essentials day & night.

Off Grid Solar Hero

About UTC Solar

UTC Solar was founded in 2015 to accelerate mass solar adoption in India. We’ve helped 25,000+ homes go solar and support housing societies—saving customers up to 90% on monthly bills.

  • Free solar consultation services
  • Premium prefabricated mounting structures (resilient up to ~170 km/h)
  • Easy, 10-minute loan approval; multiple EMI schemes (incl. zero-cost)
  • 3D rooftop model within ~15 minutes of site survey
  • 5-year AMC contract available

Overview — What is Off-Grid?

An off-grid (stand-alone) solar system is not connected to the grid. It operates like an independent island composed of:

  • Solar panels (modules)
  • Mounting structures
  • Batteries
  • Solar charge controller
  • Solar inverter
  • Solar accessories

Working — Flowchart

Panels absorb sunlight → generate DC
DC goes to a combiner box
To the charge controller (charges batteries & feeds inverter)
Off-grid inverter converts DC → AC (most include BMS)
AC powers household appliances

Off-Grid Components & Working

#1. Solar panels — Mono/poly; both make DC. Avoid shading at installation.

#2. Solar inverter — Converts DC to AC for loads; the heart of the system.

#3. Batteries — Store excess daytime generation; supply power at night.

#4. Charge controller — Regulates charging, feeds the inverter, manages flow.

#5. Mounting structures — Hot-dip galvanized; designed for optimal tilt.

#6. Accessories — DC/AC cables & combiner boxes, MC4 connectors, earthing, conduit trays, lightning arrester.

Off-Grid Systems — Capacities & Units

CapacityUnits / day (avg)Units / year (avg)
1 kW~4~1440
2 kW~8~2880
3 kW~12~4320
4 kW~16~5760
5 kW~20~7200
10 kW~40~14400

Higher capacity ⇒ more units. Choose to match your load & backup needs.

Cost & ROI

All-inclusive off-grid pricing (incl. batteries) typically ranges ₹85–100/Wp, mainly driven by backup hours:

  • Short backup (30–60 min): smaller batteries → lower cost
  • Long backup (6–7 hrs): larger batteries → higher cost

Typical payback: ~6–7 years (batteries add cost). Still often more economical long-term than remote fossil-fuel grid power.

Benefits of Stand-Alone (Off-Grid) Power

  • The only viable option where there’s no grid (rural/agri/remote)
  • Clean & green power—zero tailpipe emissions
  • Beats the high, volatile cost of fossil-fuel grid electricity over time

Conclusion

An off-grid system is ideal where grid power isn’t available. While payback takes ~6–7 years due to batteries, it’s justified against high fossil-fuel grid costs—and keeps your home sustainably powered.

FAQs

A stand-alone system that works independently from the grid. Panels generate DC; a charge controller powers loads & charges batteries; stored energy runs the house at night.

Cost: with batteries, typical price is ₹85–100/Wp, and payback is ~6–7 years.

Panels → DC combiner → charge controller → (charges batteries & feeds inverter) → inverter converts to AC → AC powers the load (most modern inverters include BMS).