Are you a landed property owner in Singapore considering a solar PV system on your roof? Let’s dive into the financial benefits and ROI calculations to show you why this investment is a game-changer for your wallet and the environment. 

Why Invest in Solar PV?

Switching to solar energy isn’t just about going green; it’s about maximising your financial returns. Here’s a breakdown of how investing in a solar PV system can pay off handsomely.


Sample System Overview

System Size: 18kWp 

(40 pieces of 450Wp panels +15KTL inverter)

Annual Sun Hours: 1200 hours

Financial Scenarios and ROI

Worst Case: 100% Export to Grid

Even if you export all the generated energy to the grid, you earn approximately $5,038.56 per year.

•Annual Earnings: $5,038.56 

18kWp*1200hrs=21,600kWh, 21,600kWh*$0.2333 (SP current export rate) = $5,038.56

•ROI (Return On Investment): 350%-400% (Estimated 25 Years Savings- Invoice Amount) / Invoice Amount

•Payback Period: 5.08 years

Scenario 2: 50% Self-Consumption

Half of the generated energy is used in your home during the day, and the rest is exported.

•Annual Savings from Self-Consumption: $3,517.56 

•Annual Earnings from Export: $2,518.44

•Total Annual Benefits: $6,036

•ROI: 400%-450%

•Payback Period: 4.29 years

Scenario 3: 70% Self-Consumption

Increase your self-consumption to 70%, and watch the benefits grow.

•Annual Savings from Self-Consumption: $4,928.57

•Annual Earnings from Export: $1,511.57

•Total Annual Benefits: $6,440.14

•ROI: 450%-500%

•Payback Period: 4.03 years

Best Case: 100% Self-Consumption

Maximize your savings by using all the generated energy in your home.

•Annual Savings from Self-Consumption: $7,035.12

•ROI: 500%-550%

•Payback Period: 3.70 years

Annual Electricity Inflation Impact

Considering an annual electricity inflation rate of 1.00%, your savings will increase year over year, further enhancing the ROI. Here’s a snapshot of how the ROI holds strong over a 25-year period:

•Worst Case ROI: 372%

•50% Self-Consumption ROI: 445.6%

•70% Self-Consumption ROI: 475.6%

•Best Case ROI: 519.1%  

Why a Larger System Means Greater Returns

Now, imagine scaling up your system to 27kWp. With this larger system, your annual energy production increases to 32,400 kWh. This means significantly higher savings and earnings. For example, in the best-case scenario of 100% self-consumption, your annual savings could soar to $10,552.68. This results in an even shorter payback period of just 3.1 years.

Investing in a larger solar PV system not only accelerates your ROI but also amplifies your long-term financial benefits. The economies of scale make the additional investment highly rewarding, ensuring that your household enjoys even greater returns from your solar energy system.

Take Action Now!

The numbers speak for themselves. Investing in a solar PV system for your landed property in Singapore not only offers substantial financial returns but also ensures energy security and contributes to a sustainable future.

1. Contact Us Today: Schedule a consultation to assess your property’s potential.

2. Get Your Customised Proposal: Receive a detailed panel design and ROI analysis tailored to your home.

3. Seamless Installation: Our expert team handles everything from start to finish.

4. Start Saving: Enjoy lower electricity bills and impressive returns on your investment.

Don’t Miss Out!

Investing in solar energy is a smart move for your finances and the environment. WhatsApp us now at 9839 9044 or drop us an email at to begin your journey to significant savings and a brighter future.

Harness the power of the sun, maximise your savings, and enjoy the financial freedom that comes with a solar PV system. Make the switch today!

Rezeca Renewables takes home Energy category trophy at SBR National Business Awards 2024

The company transformed digitally to elevate operational efficiency.

The Singapore Business Review held a glittering Awards Dinner on 23 April 2024 at Marina Bay Sands to celebrate the winners of the prestigious awards programmes. The event shone a spotlight on outstanding companies and projects that significantly contributed to Singapore’s dynamic business landscape.

Rezeca Renewables has been honoured with the National Business Awards for our Outstanding Digital Transformation! This award recognizes our efforts in leveraging technology to revolutionize our operations and services, ensuring we provide the best possible solutions to our clients. We are proud of our team’s hard work and innovation in driving forward our digital capabilities.

Thank you to everyone who has supported us on this journey. Here’s to continuing to transform and excel in the digital age!

Here is our unstoppable force of high achievers, driven by unity and dedication!

Front Left to Right:  Charlie, Tzehwa, Chen Ling, Rachelle, Claire, Leslie, Ayden, Samuel, Dixon

Absent with apologies: Justin, Nicholson, Ruby, Jason and our team of Solar PV Installers. 

Rezeca Renewables Pte Ltd emerged as the winner in the Energy category of the SBR National Business Awards 2024, highlighting its revolutionary approach to digital transformation in the renewable energy sector.

Specialising in solar photovoltaic (PV) system installations, Rezeca’s strategic embrace of cutting-edge digital tools and AI-driven platforms has significantly enhanced sustainability and operational efficiency, setting new benchmarks for customer service and industry innovation.

Central to Rezeca’s digital overhaul is the comprehensive integration of advanced solar system design tools such as PVsyst and Helioscope. These platforms enable precise simulations, environmental considerations, and rapid 3D design capabilities, ensuring that from conception to execution, each project achieves optimal efficiency and economic viability. This meticulous approach to system design not only elevates project accuracy but also streamlines the installation process, exemplifying Rezeca’s commitment to technological excellence and sustainability.

The transformative journey extends to operational communication and performance monitoring, employing platforms connected to inverters to facilitate real-time monitoring and proactive customer service, allowing customers to immediately identify system issues. The adoption of AI and automation technologies, including Google Drive, Slack, QuickBooks Online, and Zapier, further underscores Rezeca’s innovative spirit. Rezeca further increases its efficiency by adopting inventory management software in its warehouse and moving mundane internal administrative work to a new HRMS platform. By automating routine tasks and streamlining operations, Rezeca enhances productivity, focussing its expertise on customer engagement and technological advancement.

Rezeca’s digital transformation is driven by a clear vision: to elevate operational efficiency, redefine customer service, and solidify its position as a leader in renewable energy innovation. The initiative’s success is evident in improved project turnaround times, heightened customer satisfaction, and increased operational efficiency. This approach is not merely about the adoption of current technologies but also reflects a forward-looking strategy that anticipates the evolving landscape of renewable energy. 

Rezeca Renewables Pte Ltd’s win stands as a testament to the power of digital transformation in the renewable energy sector. Through its ongoing efforts and contributions, Rezeca not only aims to redefine the standards of renewable energy installations but also to inspire the wider sector to embrace the digital revolution, making renewable energy more accessible. reliable, and adaptable to the challenges of tomorrow.

As a landed property owner in Singapore, embracing solar power can offer you a wealth of advantages. Here are the top eight benefits that should encourage you to switch to solar energy:

  • Reduced Environmental Impact: Solar power allows you to significantly cut down your carbon footprint. By choosing this clean, renewable energy source, you contribute to combating climate change and reducing air pollution, making a positive impact on the environment for future generations.
  • Lower Energy Bills: Installing solar panels on your property can drastically reduce your monthly energy costs. With the ability to generate excess electricity during peak daylight hours, you have the opportunity to sell surplus power back to the grid through net metering, further diminishing your utility expenses.
  • Increased Property Value: Solar-equipped homes in Singapore often attract higher market values and sell more swiftly. Buyers are increasingly valuing the long-term energy savings and environmental benefits of solar-powered homes, enhancing their market appeal.
  • Minimal Maintenance Requirements: Solar power systems are renowned for their durability and low maintenance needs. Post-installation, they require little upkeep beyond yearly cleaning and regular checks, providing a reliable and hassle-free energy solution.
  • Access to a Renewable Resource: The sun’s energy is abundant and perpetual. Unlike finite fossil fuels, solar power offers a sustainable energy solution that doesn’t deplete our planet’s resources, ensuring a constant and reliable energy source for your home.
  • Efficient Energy Production During Peak Hours: Solar panels produce electricity when it is most needed, especially during the hot periods when air conditioning use is high. This can alleviate the load on the grid during peak times.
  • Enhanced Energy Security: With solar panels, you contribute to the overall energy security of Singapore. By reducing dependence on imported fossil fuels, the country can achieve a higher level of energy autonomy. Your switch to solar power helps diversify the energy supply, mitigates the risks of fuel price spikes, and enhances national energy security.
  • Positive Community and Global Impact: By adopting solar power, you set a precedent within your community, encouraging others to consider renewable energy solutions. This collective action can lead to a community-wide adoption of green technologies, fostering a sustainable living environment. 


In conclusion, switching to solar power as a landed property owner in Singapore is not only a smart financial decision but also a step towards a more sustainable and self-sufficient lifestyle. The multitude of benefits offered by solar energy can enhance your property’s value, contribute to environmental conservation, and provide long-term energy savings

The transition to solar energy represents a pivotal step towards a more sustainable and environmentally friendly energy landscape.

Solar power offers a multitude of environmental benefits, foremost among them being its ability to significantly reduce greenhouse gas emissions. Unlike conventional fossil fuels such as coal, oil, and natural gas, which release harmful carbon dioxide (CO2) and other pollutants into the atmosphere when burned for energy, solar energy generation is virtually emissions-free. By harnessing the abundant energy from the sun, solar panels produce electricity without emitting any greenhouse gases, helping to curb the adverse effects of climate change.

Furthermore, the process of manufacturing and installing solar panels has become increasingly efficient and environmentally friendly over the years. Advances in technology have led to reduced energy and resource consumption during production, as well as improved recycling programs for end-of-life panels. This means that the environmental impact associated with the entire lifecycle of solar panels, from manufacturing to disposal, continues to diminish, further enhancing their eco-friendly credentials.

Another significant environmental advantage of solar power lies in its ability to reduce dependence on finite fossil fuel resources. Unlike coal, oil, and natural gas, which are non-renewable and finite, sunlight is an abundant and inexhaustible resource. By tapping into this virtually limitless source of energy, we can decrease our reliance on fossil fuels, thereby mitigating the environmental degradation caused by their extraction, transportation, and combustion.

Moreover, the deployment of solar energy systems can help alleviate environmental concerns associated with traditional energy infrastructure. Large-scale power plants, whether fueled by coal, natural gas, or nuclear energy, often entail habitat destruction, water pollution, and other adverse environmental impacts. In contrast, solar panels can be installed on rooftops, vacant land, or even integrated into existing infrastructure, minimizing land use and environmental disruption. Additionally, decentralized solar power systems reduce the need for extensive transmission and distribution networks, further reducing associated environmental impacts.

In addition to reducing carbon emissions and mitigating climate change, transitioning to solar power can yield numerous co-benefits for the environment and society at large. Cleaner air quality, improved public health, and enhanced energy security are just a few examples of the broader positive impacts associated with a shift towards renewable energy sources like solar power.

However, it’s essential to acknowledge that while solar power offers significant environmental benefits, it is not without its challenges and limitations. Issues such as intermittency, energy storage, and land use considerations need to be carefully addressed to ensure the effective integration of solar energy into the broader energy system.

In conclusion, the adoption of solar power represents a crucial strategy for reducing our carbon footprint and mitigating the adverse impacts of climate change. By harnessing the abundant energy of the sun, we can transition towards a more sustainable, resilient, and environmentally friendly energy future. It’s imperative that we continue to support policies and initiatives that promote the widespread deployment of solar energy, thereby paving the way towards a cleaner, healthier planet for generations to come.

Today, we celebrated our annual Staff Appreciation Day, a moment to honor the dedication and hard work of our team. It was a joy to recognize the commitment of those who have been with us for 5 and 10 years with Long Service Awards.

Congratulations to our 10-year awardees, Leslie Tay and Rachelle Sioson, and our 5-year honoree, Dixon Chen.

We also celebrated outstanding achievements with the Employee of the Year, Charlie Zhang, and Top Sales of the Year, Dixon Chen.

Congratulations to all our awardees! Your contributions make us who we are, and we are incredibly grateful for each and every one of you. Here’s to more years of success and teamwork!

Installing a solar PV system on your roof is an exciting step towards embracing renewable energy. Here’s what you can expect during the installation process:


1. Site Assessment and Planning

Once we receive your inquiry with your postal code (a roof plan will be of great help), one of our experienced sales representatives will prepare a preliminary proposal for you. Our sales representative and/or site manager will visit your home to conduct a site assessment if needed to confirm some details like number of panels and inverter location. We’ll check the condition of your roof, its orientation, angle, and any shading from trees or buildings that might affect the performance of the solar panels. This assessment helps in designing a system that fits your energy needs and maximises sunlight exposure.


2. Design and Permits

Based on the assessment, we may make changes to the design of the proposed solar PV system tailored for your home. Once you approve the design, our admin will handle the necessary permits and paperwork required, such as AMI meter change, SP submission, etc. This step can take some time, from 6 – 12 weeks, depending on SP progress. 


3. Installation

The actual installation begins at your convenience and our availability. This usually takes a few days to complete depending on your system size. Our workers will need to hook up their PPE for safety, then install the special brackets to mount the solar panels on your roof. These brackets ensure the panels are securely attached. 


4. Wiring and Connection

With the panels in place, the next step is wiring them together and connecting them to an inverter, which converts the direct current (DC) electricity generated by the panels into alternating current (AC) electricity used in your home. The system will also be connected to your home’s electrical panel and to the public grid.


5. Inspection and Commissioning

Once installation is complete, our appointed LEW and SP officer will review the system to ensure it meets all safety and performance standards. After passing inspection, your solar PV system will be officially commissioned, meaning it’s ready to generate electricity for your usages and sell back the excess to the SP grid. We will then show you how to download the inverter app and login to monitor the system’s performance. We will prepare a handover document with detailed products datasheet, reports and simple troubleshooting methods. 




After installation, it’s important to maintain your system to ensure it operates efficiently. Fortunately, solar PV systems require minimal maintenance. Regular checks on the panels and inverters and cleaning of the panels to remove dust, leaves, or bird droppings are typically all that’s needed.


Installing a solar PV system is a straightforward process when handled by professionals. Let Rezeca help you through this process. It not only contributes to a cleaner environment but can also reduce your electricity bills significantly in the long run.