Solar System: A Pre-Installation Guide

 Solar energy is one of the most abundant and clean sources of energy available on Earth. It can be harnessed to generate electricity, heat water, and power various appliances and devices. Installing a solar system on your rooftop can help you reduce your electricity bills, lower your carbon footprint, and increase the value of your property.

In this article, you will get the answer to the following question.

1. How do you choose the right solar system for your home?

2. What are the different types of solar systems and how do they work?

3. How much does a solar system cost and what are the factors that affect the price?

Types of Solar Systems

There are three main types of solar systems that you can install on your rooftop: on-grid, off-grid, and hybrid.

On-Grid Solar System

An on-grid solar system is connected to the main electricity grid and uses a device called an inverter to convert the direct current (DC) produced by the solar panels into alternating current (AC) that can be used by your appliances. An on-grid solar system allows you to use solar power when it is available and draw power from the grid when it is not. You can also sell excess solar power to the grid and earn credits or money from your utility company.

The Advantages of an On-Grid Solar System are:

- cheaper and easier to install because it doesn’t require a storage system to power back up or supply.

- It reduces your electricity bills and can generate income from selling excess power

- It also reduces dependence on fossil fuels and lowers greenhouse gas emissions.

The Disadvantages of an On-Grid Solar System are:

- It does not work during power outages or blackouts

- The system is subject to grid regulations and policies that may vary by location.

- It may require additional equipment such as net meters, anti-islanding devices, or grid-tie inverters

Off-Grid Solar System

An off-grid solar system is not connected to the ultimate grid and relies entirely on solar power to meet your energy needs. An off-grid solar system uses batteries to store excess solar power which provides backup during the absence of sunlight. An off-grid solar system may also use a generator or another renewable energy source as a backup.

The Advantages of an Off-Grid Solar System are:

- It works independently of the grid and provides an uninterrupted power supply and it is especially suitable for remote areas where grid access is inconsistent or inaccessible.

- It provides you with more control over your energy consumption and production

- It reduces your environmental impact by avoiding grid losses and emissions

The Disadvantages of an Off-Grid Solar System are:

- More expensive and complex to install than an on-grid solar system

- It can produce more power than you need or less power than you require depending on weather conditions

- May require additional equipment such as charge controllers, inverters, or converters.

Hybrid Solar System

A hybrid solar system combines the features of both on-grid and off-grid solar systems. A hybrid solar system is connected to the grid and has batteries to store excess solar power. A hybrid solar system can use solar power, grid power, or battery power depending on availability and demand. A hybrid solar system can also use a generator or another renewable energy source as a backup.

The advantages of a Hybrid Solar System are:

- A system provides the best of both facilities: grid stability and battery backup

- It maximizes the use of solar power and minimizes the use of grid power

- It allows you to store excess solar power for later use or sell it to the grid

- Enhances your energy security and resilience

The Disadvantages of a Hybrid Solar System are:

- It is more expensive and complicated to install than either an on-grid or an off-grid solar system

- It requires more space and equipment than either an on-grid or an off-grid solar system

- May have compatibility issues with different types of inverters, batteries, or generators

Price of Solar System

The price of a solar system depends on several factors such as:

- The size and capacity of the solar system

- Type and quality of the solar panels, inverters, batteries, and other components

- Installation and maintenance costs

- location and orientation of your rooftop

- Availability of subsidies, incentives, or financing options

As a general law, the larger the solar system, the higher the initial cost but the lower the cost per unit of electricity. The type and quality of the components also affect the performance, durability, and efficiency of the solar system.

To give you an idea, here are some indicative prices for different sizes of rooftop solar systems in India as of July 2023 (source: Loom Solar):

- 1 kW solar system: Rs. 50,000 — Rs. 70,000

- 3 kW solar system: Rs. 150,000 — Rs. 2,10,000

- 5 kW solar system: Rs. 2,50,000 — Rs. 3,50,000

These prices are inclusive of GST and installation charges but do not include batteries or net meters. The actual price may vary depending on the type of solar system, the brand and model of the components, and the site-specific factors.

Solar Products from Loom Solar

Loom Solar is one of the leading solar companies in India that offers a wide range of solar products for residential and commercial customers. Loom Solar products are designed to meet the highest standards of quality, performance, and reliability. Some of the solar products from Loom Solar are:

Solar Panels: Loom Solar offers monocrystalline and polycrystalline solar panels with high efficiency and durability. Loom Solar panels come with a 25-year warranty and a 1-year performance guarantee.

Solar Inverters: Loom Solar offers grid-tie, off-grid, and hybrid inverters with advanced features such as MPPT, LCD display, Wi-Fi connectivity, and remote monitoring. Loom Solar inverters come with a 5-year warranty and a 1-year service guarantee.

Solar Batteries: Loom Solar offers lithium-ion and lead-acid batteries with long life spans and fast charging. Loom Solar batteries come with a 10-year working warranty and a 3 to 5-year performance guarantee.

Solar Accessories: Loom Solar offers various solar accessories such as mounting structures, cables, connectors, switches, fuses, meters, and more to complete your solar system installation.

Solar Power Generation

Solar power generation is the process of converting sunlight into electricity using solar panels and inverters. Solar power generation can be done on a small scale (such as rooftop solar systems) or on a large scale (such as solar farms or parks).

The amount of solar power generated by a rooftop solar system depends on several factors such as:

- Size and capacity of the solar system

- Type and efficiency of the solar panels and inverters

- Amount and intensity of sunlight

- Angle and direction of the solar panels

- Shading and dust on the solar panels

- Temperature and weather conditions

To estimate the amount of solar power generated by a rooftop solar system, you can use the following formula:

Solar power generation (kWh) = Solar system capacity (kW) x Sun hours (h) x Performance ratio (%)

For example, if you have a 3-kW rooftop solar system installed in Delhi with average sun hours of 5.5 h per day and a performance ratio of 80%, then your solar power generation per day would be:

Solar power generation (kWh) = 3 kW x 5.5 h x 0.8 = 13.2 kWh

This means that your rooftop solar system can generate about 13.2 kWh of electricity per day or about 396 kWh per month.

Conclusion

Solar energy is a clean, renewable, and affordable source of energy that can help you save money, reduce your carbon footprint, and increase your energy independence. Installing a rooftop solar system is a smart investment that can pay for itself in a few years.

However, choosing the right solar system for your home can be challenging as there are many factors to consider such as the type, size, price, and performance of the solar system. That’s why you need a trusted partner like Loom Solar to guide you through the process.

Loom Solar is one of the leading solar companies in India that offers high-quality solar products at competitive prices. Loom Solar also provides end-to-end solutions for rooftop solar installation including site assessment, design, installation, commissioning, maintenance, and support.

If you are interested in installing a rooftop solar system for your home or business, contact Loom Solar today for a free consultation and quote.