Category: Rooftop Solar

Ultimate Guide to Rooftop Solar Systems: Benefits, Installation, and Savings

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Solar energy is a highly abundant and readily accessible power source for humans. In fact, it is believed by some researchers that if we harness all the energy from the sun in just one hour, it can be a way forward to fulfil the energy needs of a country’s population for an entire year. The advancements in technology over the past decade have made capturing solar energy more cost-effective and efficient. 

However, one of the main setbacks for solar energy use is the requirement for a significant amount of space. Thankfully, there is a solution to this problem. We can easily overcome the space constraint by utilizing the idle roof space of commercial, industrial, and residential buildings. A reputable Rooftop Solar Company in India can solve this space issue because they have expertise in calculating the area and installing the solar panels as per the area available.

Need for Roof Top Solar Systems

Millions of homes with idle rooftops in India’s urban and rural areas receive ample sunlight throughout the day. These rooftops present an excellent opportunity to harness the energy from the sun and utilise it as a replacement for electricity. Hartek Group empowers homeowners to transform their rooftops into energy sources, helping them generate their own power and contribute to India’s progress in achieving the Sustainable Development Goals.

By utilizing the power of the sun, you can not only reduce your dependence on traditional energy sources but also contribute to a cleaner and more sustainable future. So, let’s dive into the article and discover how rooftop solar systems can help you generate your own power and move India closer to achieving its sustainable development goals.

What is a Solar Roof Top System?

A Solar Rooftop System is a type of solar power system that involves installing solar panels on the roofs of buildings, including commercial, industrial, and residential structures. This process helps generate clean, environment-friendly energy without emitting pollution or harmful gases. Contrary to what some may think, utilizing rooftop solar power is simple enough, and anyone with a suitable rooftop can generate their own solar energy.

Solar Roof Top System

Advantages of Roof Top Solar System

The adoption of solar rooftop panels by many industrialists and households in India is on the rise, alongside large-scale installations that account for nearly 87% of solar power generation in the country (source- National portal for rooftop solar). Recognizing this significant growth, the Ministry of New and Renewable Energy (MNRE) has targeted achieving 40 GW of rooftop solar power through the National Solar Mission of India. (source- pib.gov.in)

Here are some of the benefits of a solar rooftop system:

1. Cost savings: Installing rooftop solar panels for homes offers significant savings. Rooftop solar tariff rates are much cheaper than the industrial and commercial tariff rates. In many residential sectors in India, rooftop solar installations are achieving grid parity, allowing building owners to save money on their electricity bills by purchasing less electricity from the grid.
2. Secure investment: Solar rooftops provide a secure investment as the cost of generating electricity can be easily calculated. Unlike traditional electricity prices that fluctuate, the price of power generated by solar rooftops remains consistent. This allows individuals to calculate the cost of generating electricity for the next ten years, providing stability and predictability.
3. Increased access to energy: Solar energy is a cost-effective source of electricity, particularly in areas with insufficient and unreliable power supply. Many people in rural and urban areas still rely on alternatives like diesel generators, which are expensive and cause harm to health and the environment. Rooftop solar panels offer a sustainable solution that reduces operating costs and provides consistent access to electricity.
4. Reduced carbon footprints: Solar panels generate electricity from sunlight, significantly reducing carbon footprints compared to traditional energy sources. They operate silently and emit fewer harmful gases, making them environmentally friendly. Rooftop solar systems play a crucial role in the fight against climate change by providing an effective source of clean energy.
5. Low maintenance cost: Rooftop solar panels require minimal maintenance and have a service life of over 20 years if properly maintained. This low maintenance cost adds to their overall value and makes them a reliable long-term investment.
6. Perfect for India: India is geographically well-suited for solar energy. The country receives abundant tropical sunlight in most regions. With over 300 bright days and clear skies each year, India has ideal conditions for harnessing solar energy. This makes solar power a particularly advantageous and viable option for the country.
7. Easy installation: Solar rooftop systems can be easily installed on the roofs of commercial and residential buildings, requiring minimal land or space. This makes solar energy a practical and sustainable solution. Additionally, installing solar cells can increase the resale value of a property, providing an added benefit.

Challenges Faced While Installing the Rooftop Solar System In India

  • Issues in varied solar policies in different states- Some states allow the RESCO (renewable energy service company model) for rooftop solar panels. At the same time, some states deny this model.
  • Lack of interest by DISCOMs- DISCOMs fear losing their best-paying customers as they are not sure about the growth of rooftop solar without restrictions. 
  • Issues in credit facility- A significant portion of credit facility lies undeployed with the banks.
  • Taxation issues- Duty inversion is the main challenge to the indigenous solar PV industries. 
  • Lack of awareness- The general public of India needs to be made aware of the subsidies offered by the government, or they find the princess too cumbersome. 

These challenges are not a concern if you have one of the top 3 rooftop solar company in India taking over your project. With the experience of over 30 years and positive feedback from our valuable clients, we are keen to serve for a better future.

Despite the challenges, we have solutions for these problems. This is with our experience and top clientele records. Solutions for these challenges provided by the government of India are: 

  • Financial incentives and various subsidies by the government. 
  • Awareness campaigns for the public.
  • Decreasing the cost of solar panels and promoting technological advancements. 

Installation process

The installation process for a rooftop solar system typically involves four steps:

1. Mount installation: The first step is to place brackets on the roof to hold the solar panels securely. It’s important to consider the installation orientation of the panels for optimal energy absorption. In many countries, installing the panels facing north and slightly inclined at an angle of 18-36 degrees is recommended. Using a solar tracker can also help increase energy conversion efficiency.
2. Solar panel installation and electrical wiring: The solar panels are fixed onto the brackets in this step. Universal connectors like MC4 are commonly used for their compatibility with different types of solar panels. The panels can be wired in two ways: series or parallel. 
3. Connecting the components: This step involves connecting the solar panels to the inverter. The inverter is then connected to the solar cell input and the grid to generate electricity. Finally, the inverter is connected to the grid.
4. Starting the solar inverter: In the final stage, the main inverter switch of the building is turned on. Most inverters have a digital display that shows detailed information about the rooftop solar production and usage data.

These steps outline the basic process of installing a rooftop solar system, allowing you to harness the sun’s power and generate clean energy for your building.

Maintenance 

Maintaining solar panels is quite simple and straightforward. Although they don’t have any moving parts, it’s still important to ensure they are clean and free from obstructions. To keep them in top shape, it’s recommended to have your solar system checked once a year for dust. And if you have installed that panel from a leading rooftop company in India, you don’t have to worry about the service. Our personnel will take care of the maintenance and care portion as we have a lifetime service facility for our valuable clients.    

Remember, the main goal is to keep your solar panels clean and unobstructed, allowing them to absorb sunlight effectively and generate clean, renewable energy for your residential and commercial space.

Factors to Consider While Selecting RoofTop Solar Company in India

When choosing the best rooftop solar system for your home, consider the following factors:

– Certifications: Opt for solar panels from a company that is BIS (Bureau of Indian Standards) certified to ensure quality and reliability and follow all the regulations of MNRE. 

– Inverter efficiency: The inverter’s efficiency directly impacts the power output and savings of the system. Look for high inverter efficiency to maximize the benefits.

– Type of panels: Consider the space on your rooftop and choose between monocrystalline and polycrystalline panels. Monocrystalline panels are more efficient and expensive, so assess your space and budget before deciding.

– Cost: While cost is a factor, prioritize quality, warranty periods, installation, and equipment quality over choosing the cheapest option. Inferior components may save money initially but can impact efficiency and reliability in the long run.

With the above factors in mind, you can choose the best rooftop solar system for your residential or industrial setup from the best rooftop solar company in India.

In summary, solar power offers low running costs, reduced greenhouse gas emissions, low maintenance costs, suitability for India’s climate, and easy installation. For reliable solar solutions, contact Hartek Group – your trusted partner in renewable energy. These benefits make solar energy an attractive and beneficial choice for both industrial and non-industrial consumers, and that too by a reputable company.

FAQ’s:-

1. What is a Rooftop Solar System?
A Rooftop Solar System is a setup where solar panels are installed on building roofs to generate electricity using sunlight, reducing reliance on the grid.
2. How does a Rooftop Solar System save money?
It reduces electricity bills by generating free solar power, and with government subsidies, the installation cost becomes more affordable.
3. What are the benefits of installing a Rooftop Solar System?
It lowers energy costs, reduces carbon footprints, requires minimal maintenance, and increases property value while ensuring energy security.
4. Is my rooftop suitable for a Rooftop Solar System?
Most rooftops are suitable, but factors like space, sunlight exposure, and panel type determine efficiency. A solar expert can assess your roof.
5. How long do Rooftop Solar Systems last?
With proper maintenance, a rooftop solar system can last 20–25 years, offering long-term savings and sustainable energy solutions.

Govt Must Act as a Catalyst to Unleash Residential Rooftop Solar Potential in India

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India’s Rooftop Solar Industry: A Promising Future

Chasing a stiff 2022 target of 40 GW, India’s rooftop solar industry is finally coming into its own. Registering a phenomenal growth of 113 percent over the past year, the country’s rooftop solar capacity recently crossed the 1-GW mark. This milestone should inspire the industry to give a much-needed impetus to this nascent segment and set the pace for unprecedented capacity additions in years to come.

Favorable Policies Driving Rooftop Solar Growth

Rooftop solar in India has everything going for it—favorable government policies, streamlined processes, an efficient regulatory mechanism, and an investor-friendly business environment. However, achieving the 40 GW target will require decisive measures and enhanced growth strategies.

Commercial and Residential Market Potential

While the commercial and industrial categories are driving much of the growth, accounting for 63 percent of the installed rooftop solar capacity, it is the dormant residential market that holds enormous potential. Hartek Group believes that if even half of India’s 205 million households install rooftop solar projects with an average capacity of just 2 KW, the country can achieve 20 GW capacity quickly.

Boosting Rooftop Solar

Government’s Role in Boosting Rooftop Solar

The government can act as a catalyst for growth by introducing:

  • Incentive-based mechanisms

  • Formulating effective policies

  • Mandating solar PV installations on all residential buildings

Successful State-Level Policies

More states should follow the Delhi government’s example, which offers a generation-based incentive of Rs 2 per unit (kWh) to residential consumers, over and above the central government capital subsidy of 30 percent. The Delhi government has also allowed third-party solar developers to install solar PV plants, easing the process for residents.

Net Metering: A Game Changer for Rooftop Solar

A well-thought-out net metering policy can significantly impact the growth of rooftop solar. It allows households to:

  • Save on electricity bills

  • Earn from the power they produce

Through net metering, residents can source supply both from the grid and their solar PV plants. If one source stops, the system automatically switches to the other. Reverse net metering is another attractive option, enabling consumers to send excess electricity back to the grid and get remunerated. However, the lack of proper implementation is hindering its potential.

Challenges Facing Residential Rooftop Solar

The major roadblocks hindering growth in the residential rooftop category include:

  • High upfront costs of solar systems

  • Lack of financing options

  • Poor awareness levels

  • Difficulties in operation and maintenance

residential rooftop category

Cost of Rooftop Solar Systems

While the cost of rooftop solar has been progressively declining at a rate of 12% per annum over the past four years, a typical 1-KW solar system without battery costs around Rs 65,000-70,000 with a 30% subsidy. Since solar modules account for 60 percent of a solar PV plant’s cost, the development of cheaper modules and economies of scale will make rooftop solar financially more attractive.

Financing Challenges and Solutions

A major challenge for homeowners is the lack of low-cost financing. Banks and financial institutions should offer low-interest loans for rooftop solar projects, making it as simple as applying for a car or home loan.

Need for Increased Awareness

The lack of awareness about the benefits of rooftop solar also limits its adoption. During solar awareness drives, it was observed that only a small fraction of people knew how rooftop solar projects could:

  • Save on electricity bills

  • Provide assured returns

  • Offer 30 percent subsidies to domestic consumers

To bridge this gap, the Ministry of New and Renewable Energy (MNRE) has introduced a centralized online facility that enables consumers to apply for rooftop solar installations with ease.

Skill Development and Workforce Training

Another issue is the lack of skilled manpower for installation, operation, and maintenance (O&M). While the commercial and industrial categories have sufficient technical manpower, the residential category lacks adequate support.
To address this:

  • A large technical workforce should be trained in solar installation and O&M.

  • Companies like Hartek Power are introducing portable 1-KW and 2-KW kits that simplify installation, making it as easy as installing a satellite dish.

Rooftop Solar for Rural Electrification

Since 70% of India’s population resides in villages, rooftop solar can play a significant role in electrifying rural and remote areas that are not connected to the grid.

  • Decentralized cluster power generation can reduce transmission costs in sparsely populated villages.

  • Rooftop solar offers a cost-effective solution to electrify regions where grid connectivity is challenging.

Rooftop Solar: Powering a New India

By empowering rural India with reliable electricity, rooftop solar is doing what the government alone could not achieve. For reliable rooftop solar solutions, contact Hartek Group – your trusted partner in renewable energy. It is lighting up homes that previously had no access to electricity, creating a foundation for a self-sufficient and sustainable India.

FAQ’s:-

1. What is the current rooftop solar capacity in India?
India’s rooftop solar capacity recently crossed the 1-GW mark, growing by 113% in the past year.
2. What are the key challenges for rooftop solar in India?
High upfront costs, lack of financing, poor awareness, and inadequate technical manpower hinder growth.
3. How does net metering benefit rooftop solar users in India?
Net metering allows users to save on electricity bills and earn by sending excess power back to the grid.
4. What government incentives are available for rooftop solar in India?
Residential consumers get a 30% subsidy, and some states offer additional incentives like generation-based rewards.
5. How can the residential rooftop solar market in India grow?
Increased awareness, low-interest loans, policy support, and simplified installation can boost adoption.