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.

Aerial view of rows of solar panels installed on green grass under a bright sun with a clear sky.

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.
Solar in a new light

Our mission is to accelerate solar adoption across Singapore by making rooftop solar accessible, transparent, and financially compelling for every landed homeowner and business.

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.

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.
See All Community Projects

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.
Portrait of a smiling young man with short black hair wearing a dark blazer and black shirt against a plain gray background.
Zachary Wang
Chairman
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.
Man wearing a navy blue polo shirt with the logo 'Rezeca' on the left chest, standing against a gray background.
Leslie Tay
General Manager
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.
Group of twelve people wearing black and navy blue polo shirts posing indoors in front of a decorative wooden wall with colorful books or panels.
Our Team
Sales, engineering, project delivery and support
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.

Trusted by organizations

bizSAFE STAR logo with biz in red and SAFE in gray and green letters, star stylized in red.
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 2024 logo with a three-star bar chart and the word BUSINESS in red.
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-CERT System Service logo with certification code GKSG-0188-OH and ISO 45001:2018 standard.
G-Certi
We are a certified organization under G-Certi for our quality management system.
SME500 Singapore Award Winner 2023 badge with a red lion head symbol.
SME500
We are a certified organization under G-Certi for our quality management system.
REC Solar Professional logo with black and white background.
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.
Blue banner with text 'Singapore Company of Good 2025 to 2027' and NVPC logo with heart symbol.
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.

Our Journey 2009 to Today

From a small renewable energy startup to over 1,500 solar installations—key moments that shaped Rezeca.
Simplified beige silhouette map of Singapore on a transparent background.
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
Simplified beige silhouette map of Singapore on a transparent background.
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

Get Your Custom
Solar Plan

Share your details in the form and we'll prepare a personalized solar proposal for your property — recommended system size, layout concept, estimated cost, and projected savings, etc.

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