Cost of Off Grid Solar Power System in India

An off-grid or standalone solar power system relies entirely on solar panels to generate electricity and batteries to store energy, without connecting to the main power grid. It is a suitable solution for providing electricity access in remote, rural areas where grid connectivity is limited.

Components of an Off-Grid Solar Power System

A typical off-grid solar system consists of the following key components:

  • Solar PV Panels: Generate electricity from sunlight. Available in various power outputs.
  • Batteries: Store energy produced by the solar panels for use when sunlight is unavailable. Lead-acid and lithium-ion are common battery types.
  • Charge Controller: Regulates charging of batteries from solar panels to prevent overcharging/damage.
  • Inverter: Converts DC output of solar panels/batteries to standard AC electricity used by appliances.
  • Balance of System: Other parts like circuit breakers, junction boxes, cables and switches.

The size, quality and technical specifications of these system components determine overall performance and costs. High-end products from reputable brands improve efficiency but also increase initial spending.

Cost Breakdown of Off-Grid Solar in India

The cost of a 1kW off-grid solar power system in India ranges from ₹80,000 to ₹1,05,000 ($980 to $1,290), including batteries as of 2024.

Larger systems above 10kW can cost ₹25,000+ per kW ($307+ per kW).

Exact system costs depend on:

  • System size: Directly impacts total solar panel and battery capacity required.
  • Battery backup: More backup = larger, more expensive battery bank.
  • Component quality: High-end parts improve efficiency/lifespan but cost more upfront.
  • Location, transportation and customization expenses.
  • Subsidies and incentives available: See next section.

Operating and maintenance costs are additional, averaging 5-10% of initial system cost annually.

Costs have fallen over 50% in the last decade, driven by increasing scale, better technology and reducing solar panel prices globally. Further cost declines are expected as adoption expands.

Government Incentives for Off-Grid Solar

India has policies to incentivize solar energy installation, but most focus on grid-connected rather than off-grid systems.

Subsidies and tax breaks are available for grid-tied solar plants and rooftop systems. But similar benefits do not apply to standalone, off-grid solar setups.

For example, capital subsidies of up to 30% are offered for rooftop solar power plants under India’s SRISTI scheme.

Some states have additional financial incentives, accelerated depreciation benefits and net metering policies.

But unclear governmental stance on off-grid solar adoption limits consumer appeal. Dedicated policies and financial incentives can improve economics of investing in systems not connected to the central grid.

Key Benefits of Going Off-Grid

Despite high initial spending, off-grid solar leads to long term savings from zero electricity bills while providing reliable, sustainable power access without any grid reliance.

Households and businesses in remote areas can meet electricity needs for lighting, fans, appliances, machinery etc. at low operating costs for 20+ years with properly sized and maintained systems.

Solar energy hedge against conventional power price hikes. Fossil fuel cost volatility has made utility electricity expensive, especially in remote regions. Off-grid solar locks in affordable solar energy rates for decades.

Importance of System Maintenance

To sustain optimal performance and maximize lifespan of 20+ years, regular maintenance of all off-grid solar system components is essential.

Annual inspections of wiring, charge controller functionality, inverter operation and battery efficiency allows identifying and replacing worn parts early.

Solar panels need periodic cleaning while batteries require topping up distilled water levels every few months. Taking prompt corrective actions for any error codes or drops in output preserves longevity.

Ignoring maintenance needs shortens system life, introduces safety hazards and increases costs from major component failures.

Conclusion

Off-grid solar power systems require considerable initial investment but pay dividends over time from long term utility bill savings and reliable electricity access gains. Costs have declined substantially, although government support through subsidies and policy initiatives can further boost adoption.

With energy demand in remote areas expected to rise and grid connectivity remaining limited, standalone solar energy systems provide a sustainable, cost-effective electricity access solution. Households and businesses willing to make the upfront investment can reap economic benefits for decades to come.

300W Solar Panel

300W Solar Panel * 4 PCS

  • Model:SH-300W Rated Power (Pmax):300W
  • Efficient:18.9%
  • Maximum Excitation Voltage(Vmp):32.2V
  • Maximum Operating Current (Imp):9.32A
  • Open-circuit voltage(Voc):38.8V
  • Short-circuit current(Isc):9.71A
  • Power Tolerance:±3%
  • Maximum System Voltage:1000V
  • Size:1640*990*35MM
  • Weight:18.5kg.<
Solar Inverter

Solar Inverter * 1 Piece

  • Model:1000w/24v
  • Built-in MPPT Controller Model :60A/24v
  • LED+LCD Display
  • 1. High frequency switching technology
  • 2. Multiple protection technology
  • 3. MPPT control technology
  • 4. Battery management technology
Gel Battery

Gel Battery * 2 PCS

  • Model:NPG200-12V200Ah
  • Voltage:DC12V
  • Capacity:200Ah
  • Type:Energy storage batteries
  • Chemical Type:Gel Battery
  • Battery cover and exhaust plug structure: Valve controlled sealed storage battery
  • Status of charge: maintenance-free battery
Solar panel bracket

Solar panel bracket * 1 set

  • Usage: Ground
  • Galvanized steel bracket has good bearing capacity, no deformation, corrosion resistance, no maintenance cost, and can carry 4*300W
  • photovoltaic panels
  • System configuration: 1 bracket for each system
Photovoltaic cable/battery cable

Photovoltaic cable/battery cable*1 set

  • Polyethylene TUV certified 4MM2 red and black 50m copper core photovoltaic outdoor special cable
  • Application of temperature: -40℃~120℃
  • Good resistance to UV, ozone and other compounds
  • Good mechanical structure strength.Effectively waterproof, oil and chemical corrosion proof
MC4 connector

MC4 connector * 1 pair

  • Main Features:
  • 1. Large current and high voltage bearing capacity
  • 2. Good impact resistance
  • 3. Low contact resistance
  • 4. Innovative sealing, waterproof and dustproof design, up to IP67
  • 5. Excellent high and low temperature, waterproof, UV resistance and other properties, suitable for long-term outdoor use.