About Unilux Solar

Launched in 2024, Unilux Solar is dedicated to driving the large-scale embrace of solar energy throughout Telangana State in India. As a leading EPC provider, we’ve enabled over 30 households to transition to clean energy. Our key offerings include:

1. Deployment of grid-connected rooftop solar solutions for homes and residential complexes
2. Comprehensive post-installation support and maintenance services
3. Customizable financing options, including easy EMI plans
4. Use of innovative, pre-engineered mounting systems for seamless solar panel setup

We collaborate closely with our clients to create enduring, eco-friendly energy solutions designed to last for a minimum of 2 years, fostering a brighter, sustainable future.

Here’s what makes Unilux Solar stand out:

1. Free solar consultations to help you understand your options.
2. High-quality mounting structures built to withstand cyclonic winds up to 170 kmph, perfect for coastal Andhra Pradesh.
3. Quick 10-minute loan approvals to make going solar hassle-free.
4. 3D rooftop models created within 15 minutes of a site visit, so you can visualize your solar setup.
5. Flexible EMI plans, including our popular zero-cost EMI option.
6. 5-year maintenance contracts for peace of mind.

Our mission? To create a trusted brand that puts you, the customer, first while lighting up Telangana and Andhra Pradesh with clean, green energy.

What Is an Off-Grid Solar System?

An off-grid solar system is a standalone setup that generates and stores electricity without relying on the public power grid. It’s perfect for remote areas in Telangana and Andhra Pradesh where grid access is limited or unreliable. Unlike on-grid systems, off-grid setups use batteries to store solar energy generated during the day for use at night or during cloudy weather.

While off-grid systems are more expensive and require more maintenance than on-grid systems due to battery replacements, they’re a game-changer for homes without grid access. Here’s a quick look at estimated costs in 2025 for Telangana and Andhra Pradesh:

1. 3 kW off-grid system: ₹2,40,000 onwards
2. 5 kW off-grid system: ₹4,50,000 onwards

Ready to explore whether an off-grid solar system is right for your home? Let’s dive into the details!

When Should You Choose an Off-Grid Solar System?

Most homes in urban areas like Hyderabad, Vijayawada, or Visakhapatnam are better suited for on-grid solar systems, which are cheaper, easier to maintain, and eligible for government subsidies. However, an off-grid system is ideal if:

1. You live in a remote village in Telangana or Andhra Pradesh with no grid connection.
2. Your area experiences frequent or prolonged power outages, making the grid unreliable.

If you’re in a city or town with a stable grid, an on-grid system is usually the smarter choice due to its lower cost and government incentives.

Components of an Off-Grid Solar System

Let’s break down the key parts of an off-grid solar system and how they work together to power your home:

1. Solar Panels : Solar panels are the heart of the system, capturing sunlight and converting it into DC electricity. They come in different types:
   1. Monocrystalline: Made from a single silicon crystal, offering high efficiency.
   2. Polycrystalline: Made from multiple silicon crystals, slightly less efficient but more affordable.
   3. Bifacial: Captures sunlight on both sides, ideal for maximizing energy in sunny regions like Telangana and Andhra Pradesh.

Note: Ensure panels are installed in a spot free from shadows for maximum output.

1. Solar Inverter: The inverter converts the DC electricity from panels into AC power that your home appliances use. It’s the brain of the system, ensuring your devices run smoothly.
2. Batteries: Batteries store excess energy produced during the day for use at night or during outages. They’re essential for off-grid systems but require periodic replacement, adding to maintenance costs.
3. Charge Controller: The charge controller regulates the flow of electricity from panels to batteries and the inverter. It prevents overcharging, extends battery life, and ensures efficient energy use
4. Mounting Structures: Sturdy mounting structures keep panels securely in place, angled to capture maximum sunlight. In coastal Andhra Pradesh, our structures are designed to withstand high winds.
5. Solar Accessories : Additional components ensure safety and efficiency
   1. ACDB Safeguards and combines DC power from solar panels to the inverter.
   2. DCDB Safeguards and combines DC power from solar panels to the inverter.
   3. Earthing strips and lightning arresters to protect against electrical surges, especially during monsoon season in Telangana and Andhra Pradesh.
   4. DC and AC cables for secure connections.
   5. MC4 connectors for reliable panel wiring.

How Does an Off-Grid Solar System Work?

Here’s a simple step-by-step guide to how an off-grid system powers your home:

1. Sunlight to Electricity: Solar panels absorb sunlight, exciting electrons in their cells to produce DC electricity.
2. Power Aggregation: A combiner box collects electricity from multiple panel strings, with fuses to protect against faults.
3. Charge Regulation: The charge controller optimizes power output and manages battery charging through stages (bulk, absorption, float) to maximize battery life.
4. Battery Storage: Excess energy is stored in batteries (lead-acid or lithium-ion) for use when sunlight isn’t available.
5. Inverter Coordination: The inverter and charge controller work together to monitor battery levels and manage power flow.
6. DC to AC Conversion: The inverter converts stored DC power into AC for household appliances.
7. Power Delivery: Electricity is distributed to your home’s circuits, with advanced systems prioritizing critical appliances like refrigerators.

Off-Grid Solar System Costs in Telangana and Andhra Pradesh (2025)

The cost of an off-grid solar system depends on factors like system size, panel type, inverter quality, and battery type (12V, 24V, or 48V). Here’s a rough guide for 2025:

Subsidies for Off-Grid Systems

• • The Indian government’s PM Surya Ghar Muft Bijli Yojana offers subsidies only for on-grid rooftop solar systems, not off-grid systems. This makes on-grid systems more affordable for most homeowners in Telangana and Andhra Pradesh.

Pros and Cons of Off-Grid Solar Systems

Advantages

1. Energy Independence: Perfect for remote areas in Telangana and Andhra Pradesh with no grid access.
2. Eco-Friendly: Produces clean energy with zero emissions, reducing your carbon footprint.

Disadvantages

1. Higher Costs: Off-grid systems are pricier due to batteries, with costs starting at ₹1,70,000 for a 2-kW system.
2. Longer ROI: Takes 6-7 years to recover your investment, compared to 3-4 years for on-grid systems.
3. Battery Maintenance: Batteries need replacement every few years, adding to costs.
4. No Subsidies: Unlike on-grid systems, off-grid setups don’t qualify for government financial assistance.

On-Grid vs. Off-Grid: What’s Best for Telangana and Andhra Pradesh?

For most homeowners in cities like Hyderabad, Vijayawada, or Guntur, an on-grid solar system is the better choice because:

1. It’s more affordable, with costs starting at ₹90,000 for a 2 kWp system after subsidies.
2. It requires less maintenance since no batteries are involved.
3. You can earn credits from your DISCOM for excess power generated.
4. Subsidies of ₹30,000 to ₹78,000 are available, depending on system size.

Here are estimated on-grid solar costs in Telangana and Andhra Pradesh (after subsidies, as of April 2025):

1. 2 kWp: ₹90,000 (Hyderabad) to ₹1,45,000 (Visakhapatnam)
2. 3 kWp: ₹1,02,000 (Warangal) to ₹1,57,000 (Vijayawada)
3. 4 kWp: ₹1,47,000 (Warangal) to ₹2,12,000 (Visakhapatnam)
4. 5 kWp: ₹1,97,000 (Warangal) to ₹2,92,000 (Vijayawada)
5. 10 kWp: ₹4,72,000 (Warangal) to ₹5,62,000 (Vijayawada)

Note: These are indicative prices for Unilux Solar’s base variant. Actual costs vary based on location, DISCOM charges, panel type, and other factors.

Conclusion

Off-grid solar systems are a fantastic solution for rural homes in Telangana and Andhra Pradesh with no or unreliable grid access. They provide clean, pollution-free electricity, making them ideal for remote villages or industrial setups. However, their higher cost and lack of subsidies make on-grid systems a better fit for most urban households. At Unilux Solar, we’re here to help you choose the right solar solution for your home. Contact us for a free consultation today!

FAQs

Q1: How much does an off-grid solar system cost in Telangana and Andhra Pradesh?

A: Costs vary based on system size and components. Here’s a rough estimate:

1. 2 kW: ₹1,60,000 onwards
2. 3 kW: ₹2,40,000 onwards
3. 4 kW: ₹3,80,000 onwards
4. 5 kW: ₹4,50,000 onwards
5. 10 kW: ₹6,00,000 onwards

Note: Unilux Solar does not currently install off-grid systems. These are market estimates.

Q2: What are the drawbacks of off-grid solar?
A: The main drawbacks are the high initial cost, longer ROI (6-7 years), and the need to replace batteries periodically, which adds to maintenance expenses.

Q3: Are there subsidies for off-grid solar systems?
A: No, the PM Surya Ghar Muft Bijli Yojana offers subsidies only for on-grid rooftop solar systems.

Q4: How many batteries are needed for an off-grid system?
A: It depends on system size. For example:

3 kW system: 8-9 batteries (100 AH)

5 kW system: 10-11 batteries (500 AH)