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Solar panels convert sunlight, made up of energy particles known as “photons,” into electricity utilised to power electrical loads. They can be used for numerous applications including energy generation for residential and commercial solar electric systems. 

Benefits of solar panels

Solar panels are pollution-free. They do not emit greenhouse gases when generating electricity. Its applications are numerous – it can be used to power homes, buildings, vehicles, and various appliances. Besides this, trenching is not needed because the solar panels can be close to or on-site of installation. Batteries also work to store extra power for nighttime.

Cost of solar panels for home

Solar incentives 

The development of green technology has received active backing from the Malaysian Investment Development Authority (MIDA). Project-related Green Investment Tax Allowance (GITA) categories include Integrated Waste Management Activity, Green Data Centres, Renewable Energy, and Energy Efficiency. The GITA-eligible programmes and all qualified capital expenditures (QCE) are produced from the date of application to MIDA through the end of 2023.

Green Income Tax Exemption (GITE) offers the same benefits as GITA, except that Green Township, Certification/Verification Bodies, and Electric Vehicles replace Integrated Waste Management Activity as it mainly provides services. In addition, the exemption is available for 100 percent of statutory income from the evaluation year until 2023. These incentives allow small and medium-sized businesses (SMEs) to expand the Renewable Energy industry.

In Australia, a programme known as the “Small-scale Renewable Energy Scheme” (SRES) has been introduced. Under the SRES, households and small companies that operate a small scheme, renewable energy systems are eligible for a rebate to assist with the purchase cost. Certificate-eligible small-scale renewable systems include wind turbines, hydro systems, air source heat pumps, solar water heaters, and solar photovoltaic panels.

Meanwhile, India’s Pradhan Mantri Sahaj Bijli Har Ghar Yojana (SUABHAGYA) scheme focuses on solar rooftop installations for both rural and urban regions to provide free power connections to lower-income households. The SUABHAGYA scheme supplied 40 million houses with power in March 2019, causing electricity demand to increase and hence, indicating solid economic growth.

Finally, the government established an investment tax credit (ITC) in the United States, sometimes known as the federal solar tax credit. With the ITC, users may deduct 26 percent of solar system installation costs from their federal taxes. Homeowners who have insufficient tax liabilities benefit particularly from this as they can “roll over” unclaimed credits into subsequent years for the duration of the ITC. Depending on your needs, the 26 percent can be used to cover the cost of solar panels, installation and labour expenses for inspection, developer fees, permit fees, extra solar wiring, and mounting hardware equipment.

Solar incentives
Photo by Tima Miroshnichenko

How much do solar panels save per month?

The amount of money saved each month is determined by how much is paid for power at that time. The reason is that utility companies frequently charge residents a fixed fee for power, regardless of when it is consumed. 

What affects cost savings with solar panels?

Let’s look at the factors homeowners are encouraged to consider before purchasing and how to calculate savings.

Type of solar panels

Thin film solar panels are cheaper than crystalline panels but are less durable and have lower solar efficiency. Therefore, more thin film panels will be required to generate the same amount of energy as a smaller number of crystalline panels. As a result, they will also have to be replaced sooner.

Choice of solar installer

It would be preferable to choose an installer who thoroughly understands what they are doing and charges reasonably because it concerns how well the installation is done.

Number of solar panels purchased

The larger the system, the greater the percentage of the power cost offset by solar power output. Higher kilowatts of installed solar equals more power bill savings.

Ease of installation

Flat and angled-roof houses will experience fast and low-cost installation if there is an appropriate solar absorption direction. In comparison, the process is complicated for asymmetrical rooflines.

Solar panel savings calculator

Calculating solar panel savings may be complex but is convenient with the help of such online calculators.

  1. Solar Panel Calculator: This calculator has a guide and allows users to calculate with features such as electricity consumption, solar array size estimate, estimate required roof area, et cetera.
  2. Solar Rooftop Calculator: It calculates the consumption type and units. Once done, the results display the number of solar panels, recommended kilowatts (KW) system, daily unit consumption, rooftop area, and the actual daily unit consumption calculation.
  3. Ground Mount Calculator: If ground-mounted solar panels are to be installed, users can get ideas from the related diagrams and plan onwards.

How long does it take for solar panels to pay for themselves?

A solar installation can take 10 to 20 years to pay for itself. Here’s how you can estimate how long you’ll need to cover the investment. 

Supposingly, if homeowners get 100 percent of their usage from the panels and presently pay $125 monthly ($1,500 annually) in electricity bills, they have to divide the initial investment by $1,500 paid to the power provider annually to see how long it takes for their savings to equal their expenditure.

How long does it take for solar panels to pay for themselves
Photo by Vivint Solar on Unsplash


Homeowners are encouraged to invest in solar panels because it is functional when energy prices are high. In addition, installing solar panels has long-term subsidy benefits and is environmentally friendly. Execute the right calculations for the most suitable types of solar panels for your home now!

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