About
The dawn of a new energy era
We’re here to show you the true potential of solar energy. With us, you’re not just saving money, you’re investing in our planet’s future.
Our Story
From Renewable Energy Pioneer to Solar Specialist
Founded in 2009 by Zachary Wang, Rezeca Renewables started with a simple belief: that every rooftop in Singapore could be part of the solution to climate change. As sustainability advocates, we explored hydrogen fuel cells, LED lighting, and biomass before finding our calling in solar.
Over 17 years, our team has grown from a small startup into one of Singapore’s most experienced solar installers — with 1,500+ projects completed, including 1300+ residential installations on landed properties and 100+ commercial and industrial facilities totalling 45 MWp across Singapore.
Today, we work alongside homeowners and businesses to lower energy costs, reduce carbon footprints, and build a cleaner future — one rooftop at a time. Beyond Singapore, we bring solar power to rural communities across Southeast Asia, because we believe clean energy should reach everyone.
This is Rezeca. Founded on conviction. Powered by our people. Driven by purpose.
Over 17 years, our team has grown from a small startup into one of Singapore’s most experienced solar installers — with 1,500+ projects completed, including 1300+ residential installations on landed properties and 100+ commercial and industrial facilities totalling 45 MWp across Singapore.
Today, we work alongside homeowners and businesses to lower energy costs, reduce carbon footprints, and build a cleaner future — one rooftop at a time. Beyond Singapore, we bring solar power to rural communities across Southeast Asia, because we believe clean energy should reach everyone.
This is Rezeca. Founded on conviction. Powered by our people. Driven by purpose.
Solar in a new light
Mission & Values
Our mission is to accelerate solar adoption across Singapore by making rooftop solar accessible, transparent, and financially compelling for every landed homeowner and business.
Engineering First
Every system we design is grounded in rigorous engineering analysis—roof structural assessment, electrical load calculations, and optimal panel orientation for Singapore's equatorial conditions.
Long Term Support
We don't disappear after installation. With 30-year panel warranties, app monitoring, and ongoing REC management, we’re invested in your system’s performance for decades.
Community Always
From powering schools in Laos to supporting elderly welfare in Singapore, our commitment to social impact is woven into our business model—not bolted on as an afterthought.
Transparent Pricing
No hidden costs, no bait-and-switch. Every proposal comes with a fully itemised quote, detailed ROI projections, and realistic payback timelines based on actual Singapore tariff data.
Milestones
Our Journey 2009 to Today
From a small renewable energy startup to over 1,500 solar installations—key moments that shaped Rezeca.
01
2009
Rezeca Founded
Zachary Wang establishes Rezeca Renewables in Singapore as a clean energy engineering company focused on renewable energy solutions across Southeast Asia.
02
2013
Pivot to Solar PV
Rezeca shifts its core focus to rooftop solar photovoltaic installations for residential landed properties and commercial buildings in Singapore.
03
2015
100th Residential Installation
Reaches 100 completed residential solar projects across Singapore's landed property estates, establishing a reputation for quality and reliability.
04
2018
Commercial & Industrial Expansion
Expands into large-scale commercial and industrial solar installations, working with factories, warehouses, and commercial buildings across Singapore.
05
2020
500+ Projects Milestone
Crosses the 500-project mark across residential and commercial segments, with total installed capacity exceeding 20 MWp.
06
2024
EY Entrepreneur of the Year
Rezeca’s leader, Zachary Wang, is recognised as EY Entrepreneur Of The Year 2024 Singapore. As the overall Singapore winner, he went on to represent Singapore at the EY World Entrepreneur Of The Year, a proud achievement that reflects the vision, resilience, and ambition behind Rezeca’s journey.
07
2025
Company of Good Certification
Awarded the National Volunteer & Philanthropy Centre (NVPC) Company of Good certification, recognising Rezeca's sustained commitment to corporate social responsibility.
08
2026
1,500+ Projects & 45+ MWp
Rezeca reaches over 1,500 completed solar installations with more than 45 MWp of total installed capacity—making it one of Singapore's most experienced solar contractors.
Our Impact
Solar Energy for Communities, Not Just Customers
Rezeca's commitment to sustainability extends beyond commercial installations. Through our community solar programme, we have installed off-grid solar systems for underserved schools in Laos and Thailand, partnered with the Council for Women's Affairs (CWA) to support elderly welfare in Singapore, and earned the NVPC Company of Good certification in 2025 in recognition of our sustained social impact.
In 2026, we are launching Project Solar Proa in collaboration with the National University of Singapore (NUS)—bringing solar-powered maritime solutions to coastal communities in Southeast Asia.
In 2026, we are launching Project Solar Proa in collaboration with the National University of Singapore (NUS)—bringing solar-powered maritime solutions to coastal communities in Southeast Asia.
See All Community Projects
5 schools
powered (Laos + Thailand)
CWA partnership
Seniors supported
CO₂ offset
Environmental
Our Team
The People Behind Every Installation
From engineering design to rooftop installation, every Rezeca project is delivered by our in-house team of solar specialists, solar-specialised engineers and supporting staff.
Zachary founded Rezeca in 2009 with a conviction that Singapore's abundant equatorial sunlight was an untapped resource for homeowners and businesses alike. Under his leadership, the company has grown from a small clean energy startup to one of Singapore's most experienced solar contractors—overseeing 1,500+ installations and 45+ MWp of deployed capacity. Recognised at the EY Entrepreneur of the Year awards in 2024.
Leslie leads Rezeca's day-to-day operations across residential, commercial, and community projects. With deep expertise in solar PV engineering and project delivery, he ensures every installation meets Rezeca's standards for quality, safety, and customer experience—from initial roof assessment through to commissioning and handover.
Rezeca’s in-house team includes specialists across solar sales, engineering, project management, procurement, finance, customer support and installers. Together, they support the delivery of residential and commercial solar projects in Singapore, from consultation and system design to coordination, execution and handover, with a strong focus on quality, efficiency and service.
Certificates
Trusted by organizations
BizSAFE Star
Our Workplace Safety and Health Management System (WSHMS) is in compliance with the Workplace Safety and Health (WSH) Act and international standards such as ISO 45001.
National Business Awards
Our Workplace Safety and Health Management System (WSHMS) is in compliance with the Workplace Safety and Health (WSH) Act and international standards such as ISO 45001.
G-Certi
We are a certified organization under G-Certi for our quality management system.
SME500
We are a certified organization under G-Certi for our quality management system.
REC Certified Installer
As a REC certified installer, we are able to offer clients 25 years full warranty (product & power warranty) on all REC solar panels.
Company of Good
As a REC certified installer, we are able to offer clients 25 years full warranty (product & power warranty) on all REC solar panels.
Milestones
Our Journey 2009 to Today
From a small renewable energy startup to over 1,500 solar installations—key moments that shaped Rezeca.
01
Solar Energy
Sinagpore
Rezeca Renewables — Singapore
The company that started it all. Singapore's pioneer in residential and commercial solar installations, with over 1,500 completed projects across landed homes, schools and factories. BizSAFE Star certified and BCA Certified Installer.
02
Solar EPC · Southeast Asia
Thailand
Rezeca Engineering — Thailand
Rezeca Engineering is our Thailand-based joint venture, focused on commercial and industrial rooftop solar projects. Working closely with PEA ENCOM, MEA, PEA, the BOI, and other government bodies to deliver fully compliant, turnkey EPC solar solutions at scale.
Contact Rezeca Engineering at sa@rezeca.com
Contact Rezeca Engineering at sa@rezeca.com
03
Outdoor Living
Sinagpore
Rezeca Renewables — Singapore
The newest addition to the Rezeca family. Rezeca Space offers premium motorized pergola systems — customisable louvre roofs, retractable canopies, and smart controls designed for Singapore's tropical climate. Over 50 satisfied customers across landed homes, condos, and commercial F&B spaces.
Contact Rezeca Space at +65 8020 9567 or bruce@rezeca.com
Contact Rezeca Space at +65 8020 9567 or bruce@rezeca.com
Stories
News & Updates
Contact
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Solar Plan
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Copyright © 2026 Rezeca Renewables.
Copyright © 2026 Rezeca Renewables.
