Solar Panel Installation

In general, a home requires between 15 to 25 solar panels to cover 100% of its electricity consumption. You should consider several factors when deciding the number of solar panels to install.

You need to look into:

• Your annual electricity use

• The estimated production ratio of your solar panel system

• The wattage of the solar panels you are considering

In addition to the above, you should also consider your geographical location, panel-rated power, panel efficiency and personal energy usage habits. The cost of your solar panel system is directly proportional to the number of solar panels you need for your home.

The cost of installing a solar panel system in Singapore can range between $10,000 and $50,000. The cost will depend on several criteria, including the number of solar panels being installed, the material and orientation of the roof, and the installation method.

Most Singaporeans want to make the most of their roof space for solar panel installation, as larger systems result in reduced unit prices. However, bear in mind that you should evaluate your monthly electricity consumption before designing a solar panel system to meet your daily electricity requirements.

Solar panels are a long-term investment and typically have a warranty period of 25 to 30 years. Solar panel inverters have a lifespan of five to twelve years and must be replaced at least once over the lifetime of a solar panel system.

As the industry progresses and grows, the drawbacks of solar energy are diminishing, resulting in economies of scale. Technological advancements are playing a significant role in helping solar go mainstream. While solar panel systems have a few disadvantages, two in particular stand out.

• The Initial Cost of Installing the Panels is High

Often mentioned as the most common drawback of solar panels, the initial high cost to install a solar panel system is gradually declining due to the sector expansion. The initial costs for obtaining and installing the equipment are still considerably expensive. However, if money is an issue, you can still opt for leasing options, which can lower your initial cost.

• Solar Panels Require Sunlight to Function

Solar panels need sunlight to generate electricity. They do not produce electricity at night and are inefficient during storms and cloudy days. If you intend to power your home entirely with solar energy, your solar panel system will need batteries. It is an expensive component that, unlike solar panels, wears out and requires careful maintenance to extend its lifespan.

If you live in an HDB flat, you will not be able to install solar panels on top of your flat’s rooftop. Although there are no specific rules or regulations against it, there are several reasons why installing solar panel systems in HDBs can be a challenge.

They are listed below:

• HDB flats have limited rooftop space, making solar panel installation difficult.

• Without proper guidelines, regular maintenance and safety inspections needed for the effective functioning of solar panels can be challenging.

• Integrating solar panels with existing electricity infrastructure can be a complex process.

However, the Housing and Development Board (HDB) of Singapore has recognised the potential of solar panels and plans to equip HDB flats with solar panel systems.