Frequently Asked Questions

Installing a solar panel on your roof is easier than you might think.

What are the benefits of solarising my roof?

Installing solar panels on your roof offers numerous benefits, including lower electricity bills, reduced carbon footprint and significant long-term cost savings.

Is my rooftop suitable for solar installation?

The suitability of your rooftop for solar installation depends on several factors, including roof type, the amount of sunlight your roof receives, the angle and orientation of your roof, and any potential shading from trees or nearby buildings. We can conduct a free assessment of your roof to determine if it is suitable for solar panels.

What services do you offer?

We offer a comprehensive range of solar energy services, including consultation, design, installation , and maintenance under our Power Purchase Agreement (PPA) model.

In this model, we take ownership and operation of the solar photovoltaic (PV) system, enabling customers to switch to clean energy without any upfront capital and operating expenditure. Simply pay for the energy you consume per month at prices lower than Singapore's tarrif rate.


Book a free consultation with us for a more detailed proposal.

Do you cater to residential customers?

We will require more information on the residence to assess its suitability for solar installations.

What are the steps involved in the installation process?

We begin with a thorough site assessment and engineering studies to design a solar panel system optimised for your roof. After that, we'll secure all required permits from the relevant authorities. Upon approval, we'll procure the necessary equipment and proceed with installation, ensuring high-quality workmanship. The final step is testing and commissioning to confirm the system is installed properly, operates safely, and performs at its peak efficiency. Once complete, your journey towards green energy begins.

What is the typical timeline for a solar project from start to finish?

Depending on the project size and roof type, the duration for our solar projects typically falls between 6 to 9 months from start to finish.

Does Terrenus Energy provide maintenance services?

Under the PPA model, we are responsible for the operation and maintenance of the solar energy system over the full contract duration. Our maintenance services include regular inspections, cleaning, performance monitoring, and any necessary repairs. We are committed to ensuring the system continues to operate efficiently.

Can I monitor the performance of my solar energy system?

Absolutely! We offer advanced monitoring solutions that allow you to track the performance of the solar energy system in real-time through an online dashboard.

How much will a solar panel system cost?

The PPA model we offer is a zero capital expenditure (CAPEX) scheme with no upfront costs. We install, own, and operate the solar panel system over the entire PPA term. During this time, you will be able to purcahse the solar electricity generated at a discounted rate.


Book a free consultation with us for a more detailed proposal.

Will installing solar panels reduce my power bill?

Yes, installing solar panels can substantially reduce your power bill. The extent of the savings depends on the solar energy system's capacity and your electricity consumption.

How does billing work?

Under the PPA model, you will be billed for the electricity you consume from the solar energy system based on the fixed PPA rate (as determined upon the contract signing) over the full PPA term. For brown electricity supplied by the grid at night or when generation is low, you will be billed by your electricity retailer.

What happens at the end of the contract term?

At the end of the PPA term, several options may be available depending on the agreement. These will be covered in the proposal stage of your engagement with us.

How much power can a solar PV system generate?

The power generation of a solar PV system depends on several factors, including the size of the system, the efficiency of the panels, and the amount of sunlight the panels receive.

Typically, a 100 kilowatt-peak solar system (600sqm) can generate about 120,000 kilowatt-hours of solar electricity per year, equivalent to powering roughly 30 Singaporean households all-year-round.

How will solar panels affect my roof?

For our solar installations, we use non-penetrative installation methods as much as possible for each roof type to prevent any damage and maintain roof integrity. As part of the site assessment, various factors such as load factor will also be considered in determining suitability.

What is the lifespan of solar panels?

The lifespan of solar panels is between 20 to 25 years. Even after this period, solar panels can continue to generate electricity, although their efficiency may decrease slightly over time.

Do the solar panels generate energy at night or on cloudy days?

Solar panels do not generate electricity at night when there is no sunlight. However, they can still generate power on cloudy days, albeit at a reduced output compared to sunny days.

Is the solar PV system connected to the grid?

Yes, our solar PV systems are connected to Singapore's electrical grid, ensuring that the building has continuous power supply at night or when generation is low.

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