Clean Technology & Solutions

We create a sustainable future where people, society and the environment will coexist.


Capitalizing on the innovation we have achieved in our business models, SK ecoplant aims to maximize economic and social values by providing tech-based solutions for global social issues. To complete The Zero City, we defined securing and developing clean technologies related to areas such as environment, energy, and solutions as our key growth strategy, making investments in transitioning our business portfolio and developing related technologies.


We aim to implement a platform for a circular economy, which will enable us to resolve waste and water issues and achieve net zero, based on AI, DT, and environmental technologies and solutions.

환경 테이블 (운영 효율화, Waste to Resource, CO2 포집 및 자원화, Waste to Energy)
Operational Efficiency We aim to build a green platform based on AI·DT technologies and solutions.

We have developed systems to manage and track the whole lifecycle of waste and water treatment and enhanced operational efficiencies dramatically, thus providing value unrivalled by other competitors. Using our incinerators and water treatment facilities as a test bed, we have joined forces with Amazon Web Services (AWS) to develop a digital-based logistics system, composition analysis AI algorithm, and AI technologies maximizing the operation of incinerators and water treatment facilities.

Waste to Resource We aim to build an ecological system in the overall value chain that allows natural circulation of waste materials..

We develop and verify various water treatment technologies such as zero discharge, reuse and ultrapure water treatment, as well as technologies to reuse plastic waste and turn carbon into resources, using AI and DT technologies at EMC, Korea’s top wastewater treatment company. TES, one of our subsidiaries, has also begun construction of a factory to manufacture raw material for lithium batteries by recycling waste batteries beginning in 2022, with the aim of achieving a circular economy.

CO2 Captured and Used as a Resource We aim to achieve net zero by capturing wasted carbon dioxide from incinerators and turning it into resources.

We began a CCU pilot project to capture carbon dioxide from incinerators in 2022 while reviewing relevant regulations and discussing potential partnerships with domestic and overseas CCU companies. This is in line with our plan to launch a pilot project to construct and operate a commercial plant to turn CO2 into resources in 2023-24.

Waste to Energy We aim to commercialize waste-to-energy (WtE) technologies.

To operate a pilot project using our holding assets, we are currently making investments in WtE element technologies by discovering and cooperating with domestic and overseas startups, as well as forging partnerships with global enterprises


We aim to provide eco-friendly dispersion energy solutions, based on core technologies in the areas of hydrogen and fuel cells, renewable energy, and energy solutions.

에너지 테이블 (연료전지, 재생에너지, 수소, 에너지 솔루션)
Fuel Cells We aim to lead the hydrogen and fuel cell power generation market.

Working in cooperation with Bloom Energy in the US, we are currently piloting fuel cells with direct hydrogen injection, which has zero carbon emissions, and discussing additional development for efficiency enhancements. Carbon emissions from natural gas-based fuel cells is to be captured and provided to smart farms and other sources of demand, leading to further reduction of emissions. With design optimizations, we are striving to minimize the use of materials during construction and the generation of waste produced after the operation of power plants.

Renewable Energy We aim to expand the generation of offshore wind power in Korea by assimilating core technologies of the offshore wind power industry.

Having signed an MOU with POSCO, which possesses manufacturing technologies for high-performance structure steel, we are developing technology for a unique floating facility suitable for our domestic environment. This will be demonstrated through a pilot project that is underway off the coast of Ulsan. We plan to apply these technologies to our projects that are already underway and actively promote offshore wind power projects.

Hydrogen We aim to preoccupy the hydrogen market by internalizing water electrolysis technology, which is essential to hydrogen production.

We are jointly developing a high-efficiency hydrogen production system with Bloom Energy, as technology for ‘green hydrogen production’ using solar, wind and other renewable energy was deemed invaluable for our business. In 2022, we were designated as an entity for conducting a pilot project for green hydrogen production using wind power generation in Jeju island, and we are planning further technological R&D and investment for transporting and utilizing hydrogen.

Energy Solutions We aim to implement Net Zero and RE100 for our customers through the energy supply platform.

We plan to connect eco-friendly dispersion energy resources built through state-of-the-art core technologies via AI and cloud-based platforms and thus comprehensively manage, control and optimize energy use.


We aim to become a global eco-friendly EPC developer capable of resolving issues related to climate change and environmental pollution.

솔루션 테이블 (친환경 설계(주택), 친환경 설계(엔지니어링), 친환경 설계(플랜트), 친환경 소재 개발(솔루션))
Eco-friendly Design
We aim to contribute to the realization of an eco-friendly circular economy through energy-saving construction with capabilities concentrated on the energy and waste sectors.

We are developing technical elements related to zero energy buildings and expanding activities to use eco-friendly material and reduce the generation of waste in the construction process. Further, we are building sustainable housing models capable of cutting down on carbon emissions in the lifecycle of buildings, as well as responding to new lifestyles.

Eco-friendly Design
We will hone our capabilities as an eco-friendly EPC partner for SK Group’s clean energy projects and thus preoccupy the global eco-friendly market.

Starting in 2021, we have been carrying out a liquefaction processing plant project using byproduct hydrogen, as well as working with the world’s leading enterprises in developing process technology for hydrogen production utilizing natural gas. In terms of resource circulation, we are promoting pilot projects for vehicle batteries and plastic recycling, which are currently in their initial designing phase. With respect to oil & gas plants, existing industry facilities are being transitioned to eco-friendly ones while development of additional technologies are planned to help us obtain eco-friendly technology licenses.

Smart Construction
We aim to provide smart & green tech solutions by promoting “FAB Con-Tech 2.0”, an initiative combining construction management technologies and technological elements.

We have established and are operating a pre-construction process, an advanced construction management technique which helps ordering companies, construction companies, and suppliers set up a collaborative system during the design phase – thus developing an optimized project implementation plan while expanding the application of modular construction engineering, as well as a factory construction method for more efficiency in construction. To deal with strengthened environmental regulations for the semiconductor sector, we establish environmental strategies by analyzing operational data from existing semiconductor facilities, reduce the input of resources such as water, electricity and chemicals, and are reviewing the introduction of a system capable of implementing the concept of 3R (reuse, recycle and reduce), such as cutting-edge energy and waste-reducing waste water treatment and improvement of the effluent reuse rate.

Eco-friendly Material Development (Solutions) We aim to develop construction materials made from recycled waste.

We are working on developing technologies to manufacture rebars and cement by recycling industrial and urban life waste, as well as to reduce harmful gases emitted from our incineration and landfill subsidiaries and reuse the generated gases for hydrogen production. Having used rPET resin and glass fibers as raw materials, we have successfully developed market-competitive GFRP reinforcing bars, tentatively called ‘eco bars’, which will replace the existing steel bars, and also embarked on projects that will contribute to carbon reduction in the construction industry and expand the value of recycling.

SK ecoplant ‘Tech Hub’ Eco Lab Center

The Eco Lab Center, under the direct control of the CEO, is an eco-friendly R&D ecosystem platform, which connects technology development tasks conducted internally by each business unit with outside stakeholders and relevant internal divisions. The center establishes C&D (connect and develop) strategies associated with business strategies and analyzes trends in eco-friendly technology, policy, and the market to build a C&D portfolio while implementing a technology roadmap created based on technological element and market analysis. In particular, the center is internally developing water, waste, and DT technologies, the key to leading environmental innovation, and promoting business model innovation through joint R&D. It is also taking the lead in building an eco-friendly ecosystem through Open Innovation, which discovers and connects startups and eco-friendly innovative technology and solutions partners, and provides new eco-friendly solutions to our customers through cooperation and technology exchange with global leading companies. In addition, it performs technical reviews of new environmental projects, M&A-related technical evaluations, and development of new business models based on technologies and solutions, thus serving as a tech hub in charge of supervising the discovery, assimilation and consulting of SK ecoplant’s environmental projects.

Build an eco-friendly ecosystem

We have built an environment-friendly R&D ecosystem platform through Open Innovation for eco-friendly innovative enterprises and technologies, as well as through the network set up between the technology and policy sectors. Cooperation has been forged with outstanding domestic and overseas enterprises, research institutions and academia, while a council has been set up in cooperation with national environmental institutions – such as the Korea Environmental Industry & Technology Institute – to lead the discovery of innovative technologies and the advancement of promising technology enterprises.

Commercialize Technology Development/Solutions

We secure outstanding eco-friendly, innovative technologies through C&D and discovering leading environmentally friendly technologies, as well as striving towards a value enhancement of our existing assets to embark on new projects. In addition, we carry out joint tasks with public and private research institutes, developing technology and business models while promoting commercialization through field application of secured technologies and solutions.

Convergence with Digital Platform

To secure new growth engines, we explore digital-based business models and innovate BUs by applying digital solutions, increasing operational efficiency and thus enhancing our corporate value.


Preparing for a full transition to an eco-friendly business, SK ecoplant has invested KRW 1.6 trillion in environment, energy, and solutions projects as of 2021. Our major achievements include the acquisition of EMC, Korea’s top environmental platform company, and investment in bolt-on acquisitions of incinerators and landfills, as well as equity investment in Bloom Energy, a world-renowned fuel cell manufacturer.
We are planning to make a total investment of KRW 3.9 trillion (KRW 3.6 trillion in environment and energy and KRW 0.3 trillion in solutions) in the next two years, which will accelerate the completion of the Zero City project.

Accumulated Investment & Goal
(Unit: KRW trillion)
누적 투자실적 및 목표 (단위:조원)에 관한 이미지 입니다. 자세한 설명은 하단 내용을 참고하세요.
솔루션, 환경 및 에너지 2021년 (1.7조), 2022년 (4.5조), 2023년 (5.5조)
  • Conduct bolt-on M&A for domestic incineration, landfill, and water treatment businesses
  • Acquire a Southeast Asian waste treatment company
  • Invest in implementing a circular economy, such as e-waste recycling in advanced countries
  • Strengthen strategic cooperation with Bloom Energy and expand the global fuel cell business
  • Secure solar and offshore wind power development projects and domestic and overseas assets
  • Expand development projects for PPP and data centers


청정기술에 관한 이미지 입니다. 자세한 설명은 하단 내용을 참고하세요.
청정기술 R&D 지출 (2021년 기준) - 335억원
특허 건 수 (2022년 누적 기준) - 70건
청정기술 활동 매출 - 매출 20%


  • 페기물 소각(폐열 활용)
  • 폐기물 재활용
  • 수소발전(연료전지)
  • 대중 교통 인프라 구축(철도, 항만, 공항)
  • 수처리, 원자력 발전


  • 녹색건축물

1. R&D Activities Related to Clean Technology Application

SK ecoplant is developing clean technologies to promote our core projects, and we publicly disclose R&D in progress

환경 - 오염 저감 및 자원순환 테이블 (소각장 운전효율 개선, CCU/CCUS, 재활용, 하·폐수 처리 운전효율 개선)
Environment – Pollution Reduction and Resource Circulation
Enhance Operational Efficiency of Incinerators Develop an algorithm for optimization of incinerator operations
Develop a waste calorific value prediction algorithm
CCU/CCUS Construct and operate a pilot commercial plant for CO2 mineral carbonation
Develop technology to capture fuel cell CO2
Conduct pilot projects based on incinerator CCU
Recycling Develop a supply system for energy byproducts (steam and electric power) from incinerators
Recycle incineration byproducts (bottom ash)
Develop technology to recycle graphite within waste batteries (Eco Graphene)
Develop washing equipment for waste plastics
Standardize design specifications for battery recycling plants
Improve Operational Efficiency for Sewage and Waste Water Treatment Perform technical reviews of digital solutions for sewage and waste water treatment plants
Introduce a system to analyze the processes in semiconductor factories and sewage and waste water treatment
에너지 - 대체에너지 테이블 (연료전지기술, 수소, 재생에너지)
Energy – Alternative Energy
Fuel Cells Develop fuel cells with direct hydrogen injection (SOFC)
Develop hot water and steam production models using waste heat from fuel cells
Develop cooling and heating technologies using waste heat from fuel cells
Develop thermoelectric generation technologies using waste heat from fuel cells
Demonstrate water electrolysis (SOEC) technology
Hydrogen Commercialize liquefaction processing plants for byproduct hydrogen and blue hydrogen
Renewable Energy Develop eco-friendly thermal coal using digestive gas generated from food waste effluent treatment plants
Develop technology for a unique floating system for offshore wind power
솔루션- 그린빌딩 테이블 (스마트 건축, 친환경 자재, 녹색건축기술)
Solutions – Green Building
Smart Building Ensure the design quality and automate drawings through BIM-based engineering
Promote data-based automation of on-site work and enhance work efficiency by building a smart work platform
Develop a BIM-based building component management system (BCMS) to ensure cost transparency
Use UAVs to manage the construction progress and earth volume measurement
Secure digital twin data by managing sites using 360° cameras and BIM
Build an intelligent BIM design system (Design automation, modelling status analysis, etc.)
Automate electrical cable modeling
Enhance the performance of software that automates 2D drawing extraction
Adopt AR technology for comparing design information and status at construction sites in real time
Transition the history management system for semiconductor manufacturing equipment placement to a web-based system
Eco-friendly Materials Adopt GFRP (Glass Fiber Reinforced Plastic) rebars for which carbon emissions are less compared with those of conventional rebars
Review a concrete mix ratio that ensures both low heat generation and high liquidity
Develop the K-Eco bar, a low-carbon and light-weight alternative construction material enabling waste resource recirculation
Develop low-carbon K-Eco Cement by utilizing waste from urban life
Develop soundproof walls with low wind load, contributing to slimming down of structures
Develop construction materials through conversion technology for captured CO2 molten materials
Green Buildings Develop exterior curtain wall-integrated shading devices capable of reducing the cooling and heating load of ordinary buildings
Develop high-insulation passive windows and doors for ZEB apartment buildings
Develop high-efficiency, detachable hybrid solar power
Develop sustainable housing models from an LCA perspective (Phase I)

2. Eco-friendly Design

SK ecoplant is striving to pursue energy saving in buildings, less water use, resource saving and recycling, preservation of ecosystems, and the creation of pleasant indoor environments through eco-friendly design. To this end, we are developing technologies and relevant platforms to minimize the environmental impact of buildings across their entire lifecycle from design, construction, operation, maintenance, to disuse.
From the initial phase of project design, SK ecoplant incorporates design and technological elements that boost energy efficiency and user comfort. Passive design (i.e., placement and direction and high-performing cover) is applied to minimize energy volume in buildings and active design (i.e., high-efficiency facilities and LED) to bolster energy efficiency. Furthermore, SK ecoplant’s integrated energy design process maximizes energy independence step by step through renewable sources such as solar, BIPV*, geothermal heat, and fuel cells. In the construction process, Fast Delivery and OSC (Off-site construction) engineering is utilized to improve productivity and to contribute to reducing GHG emissions and waste.
To reduce the environmental load of buildings, SK ecoplant has adopted Green Building Certification, as well as the Building Energy Rating System. Moreover, the company conducts LCA, a process to assess information on environmental load generated during the lifecycle of a building, for each project, which provides a basis for the establishment of an environmental load reduction plan in each phase.

* BIPV: Building Integrated Photovoltaics System

제 3자 인증 현황에 관한 이미지 입니다. 자세한 설명은 하단 내용을 참고하세요.
제 3자 인증 현황 (녹색건축인증)
  • 10건 (2021년 전체 프로젝트 대비 76.9%)
  • 9건 (2022년 예상) / 2022년 4월 누적 51건
  • 6건 (2023년 예상)
  • 13건 (2024년 예상)

Accumulated total of 51, as of April 2022

3. Green Financing

SK ecoplant is actively engaged in securing eco-friendly investment resources by utilizing green and sustainable bonds. In 2021, we secured eco-friendly investment resources by issuing green bonds worth KRW 300 billion and sustainable bonds worth KRW 200 billion, and made active investments in areas such as new renewable energy and eco-friendly buildings. Furthermore, we issued green bonds worth KRW 159 billion in the first half of 2022, and aim to continuously expand the scope moving forward.

Eco-friendly Investment Resources Used in 2021
2021년 친환경 투자 재원 사용 현황 테이블 (구분 (신재생에너지, 친환경 건축물, 친환경 기업 인수, 합계), 대상 프로젝트, 사용금액)
Type Projects Amount used
New Renewable Energy 10 construction projects for fuel cell power plants (161.9MW) KRW 59.3 billion
Investment of new renewable energy companies KRW 1.8 billion
Eco-friendly Buildings 20 construction projects for eco-friendly buildings (3,860,594m2) KRW 240.7 billion
LU 1 CITY, 2nd complex KRW 65.9 billion
Acquisition of eco-friendly companies Acquisition of Daewon Green, Saehan Environment Technology etc. KRW 117.9 Billion
Total KRW 485.6 Billion

4. SKIL Demoday

SKIL Demoday is a program that promotes Open Innovation by providing startups – equipped with eco-friendly and renewable energy innovation technology – with support for growth through investment, funding, marketing, and collaboration. After document screening and interviews are conducted to select startups eligible for investment and collaboration, SKIL Demoday is held. The top 3 selected companies receive prize money and qualify for investment review. In 2021, eight selected startups were offered expert networking and test beds to commercialize their businesses. Of these, two received a total of KRW 6 billion in investment, and the remaining 6 are engaged in discussions on potential investment or collaboration. We will continue SKIL Demoday in 2022.