Key Takeaway
- Green technology refers to products, services and systems that reduce negative environmental impact and support sustainable use of resources.
- It is also known as “green tech”, “clean technology” or “environmental technology”.
- Major types include: renewable energy, energy efficiency, waste & water management, sustainable transport and agriculture.
- In Malaysia there are growing examples of green tech in renewable energy, waste-management, bio-energy and mobility guided by national policy.
- Simple frameworks like the “5 R’s” (Refuse, Reduce, Reuse, Repurpose, Recycle) help individuals apply green-tech thinking in daily life.
Table of Contents
ToggleWhat is Green Technology?
Green technology is broadly defined as the development and use of technologies, products and processes that minimise the negative impacts of human activities on the environment and society.
So in simple terms, green technology aims to support sustainability through smarter, cleaner, more efficient methods of producing, consuming and disposing of resources.
What is Another Name for Green Technology?
Green technology is often referred to by a few alternate terms:
- Clean technology (or “cleantech”) — technologies using fewer resources and having less harmful impact than conventional ones.
- Environmental technology — often used for infrastructure or large-scale systems that improve environmental quality (water, waste, air).
So when you see “clean tech”, “sustainable technology” or “environmental tech” in a text, they are frequently referring to the same broad concept as green technology.
What Are the 5 Types of Green Technology?
There is no single standard list of exactly five types, but many sources group green technology into major categories. A useful breakdown includes these five:
- Renewable energy technologies – e.g., solar, wind, hydropower, geothermal, biomass.
- Energy efficiency / smart systems – technologies that use less energy or optimise energy use (LED lighting, smart meters, energy-storage systems).
- Waste management & circular economy – processes and technologies that reduce waste, reuse materials, recycle, convert waste to energy.
- Sustainable transportation & mobility – electric vehicles, low-carbon fuels, mobility infrastructure that reduces emissions.
- Water / wastewater treatment, sustainable agriculture and resource use – tech to purify water, manage water efficiently, farm smarter, use fewer chemicals and less land.
You may also see additional categories like carbon capture & storage (CCS) or green materials / green building depending on the source.
Top 10 Green Tech Running in Malaysia Now
Green Tech | Type | How | Location |
Solar Photovoltaic (PV) Systems | Renewable Energy | Converts sunlight to electricity using PV cells on rooftops or ground mounts tied to inverters and the grid. | Nationwide; major sites in Selangor, Kedah, Johor |
Hydropower Generation | Renewable Energy | Uses flowing or stored river water to spin turbines that drive generators, via dam-based or run-of-river schemes. | Perak and Pahang (TNB plants) |
Waste-to-Energy (WTE) Incineration | Circular Economy / Waste Management | Burns municipal solid waste in controlled facilities to produce heat and electricity with emissions treatment. | Port Dickson, Negeri Sembilan, Sungai Udang, Melaka, and Bukit Payong, Johor |
Electric Buses & Mobility Initiatives | Sustainable Transport | Uses battery-electric buses charged via depots or on-route systems to cut tailpipe emissions, with trials for autonomous operations. | Selangor, Putrajaya and Melaka |
Green Building Certification (GBI) | Sustainable Architecture | Rates buildings on energy, water and materials performance using design features like efficient envelopes, controls and renewables. | Putrajaya (Menara PJH, Diamond Building) |
Biogas Recovery in Palm Oil Mills | Bio-energy / Circular Economy | Captures methane from palm oil mill effluent via anaerobic digestion, then uses the biogas for power or heat. | Sabah, Sarawak, Perak |
LED Street Lighting Projects | Energy Efficiency | Replaces conventional lamps with LEDs that deliver the same illumination using less electricity and longer lifespans. | KL, Penang, Johor |
Smart Meters by TNB | Smart Energy Systems | Measures electricity usage in near real time and communicates data for billing and user insights through AMI and the myTNB app. | Nationwide across Peninsular Malaysia. |
Rainwater Harvesting Systems | Sustainable Water Management | Collects roof runoff through gutters and first-flush devices into storage tanks for non-potable uses like irrigation and toilet flushing. | Mandated for specified new buildings in Selangor under the Selangor UBBL (Amendment) 2012. |
Low-carbon Fuels and Hydrogen-related Projects | Renewable Fuel Innovation | Produces sustainable aviation fuel at Pengerang using bioprocessing; green hydrogen development uses electrolysis powered by renewables. | Pengerang Integrated Complex, Johor (SAF biorefinery); Sarawak pilots; Kenyir, Terengganu initiative. |
These examples demonstrate Malaysia’s commitment to integrating practical, scalable green technologies that benefit both the environment and the economy.
What Are the 5 R’s of Green Technology (or Sustainable Practice)?
While the exact “5 R’s” may differ depending on subject area, a commonly used version in waste/resource-management (which ties into green technology) is:
- Refuse: decline materials or products you do not need.
- Reduce: minimise consumption or waste.
- Reuse: use a product again rather than discard.
- Repurpose: convert something so it serves new purpose.
- Recycle: process waste materials into new materials or products.
In green technology terms, these principles can guide how technology is developed, used and disposed of — e.g., designing devices for reuse, minimising raw materials, facilitating recycling of components.
Why Is Green Technology Important?
- It helps reduce greenhouse-gas emissions and mitigates climate change.
- It conserves natural resources and reduces pollution (air, water, soil) while supporting healthier environments.
- It supports economic opportunities: green tech is a growth area, generating jobs, innovation and potentially cost savings (e.g., energy efficiency).
- For many countries (including Malaysia) aligning with international sustainability goals (e.g., UN Sustainable Development Goals) means embracing green technology.
Common Myths and Clarifications
- Myth: “Green technology is only about solar panels”. Fact: While renewable energy is a major part, green tech spans waste, water, agriculture, mobility and smart systems.
- Myth: “Green tech is always expensive and slow”. Fact: While upfront costs may be higher in some cases, many technologies bring long-term savings through efficiency and resource conservation.
- Myth: “If a product is labelled ‘eco-friendly’ it is truly green tech”. Fact: Labels can be misleading and effectiveness depends on full lifecycle, manufacturing, disposal and context.
Practical Tips for Students and Everyday Use
- Look around your home or campus: what devices or systems use less energy (LED lights, smart meters, motion sensors)? These are part of energy-efficiency green tech.
- Consider transportation: using public transit, biking, or electric/hybrid vehicles supports sustainable mobility.
- In projects or assignments, pick a local green tech example (Malaysia) to make the concept concrete.
- Use the 5 R’s in your daily life: refuse unneeded single-use items, reduce consumption, reuse what you can, repurpose creatively, recycle properly.
- Stay curious about innovations: new battery technologies, waste-to-energy systems, smart farming, carbon capture — all fall under expanding green tech frontiers.
Conclusion: Understanding Green Technology in 2025
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Green technology is a critical part of how societies are adapting to environmental challenges and resource constraints. It is not a single strategy but a broad array of technological, behavioural and systems-based changes.
Whether in Malaysia or globally, understanding what green tech is, recognising examples, knowing alternative names (clean tech, environmental tech), applying the 5 R’s and appreciating the wide range of types helps build awareness.
For students and curious readers the key is to connect theory with real-life examples, think about how technologies are applied locally, and consider how individual choices tie into bigger systems.
Disclaimer:
- All of the content was thoroughly fact-checked and verified by our editorial team to ensure accuracy, clarity, and reliability.
Frequently Asked Questions About Green Technology
What is green technology?
Green technology is the development and use of systems, products and processes that minimise environmental impact, support resource conservation and promote sustainable usage.
What are the 5 types of green technology?
A useful way to categorise major types: (1) Renewable energy, (2) Energy efficiency/smart systems, (3) Waste management & circular economy, (4) Sustainable transportation & mobility, (5) Water/wastewater treatment and sustainable agriculture.
What is another name for green technology?
Alternative names include “clean technology” (or cleantech), “environmental technology”, and sometimes “sustainable technology”.
What are the 5 R’s of green technology or sustainable practice?
They are: Refuse, Reduce, Reuse, Repurpose, Recycle — a framework to help minimise waste, maximise resource use and apply sustainable thinking in technology and daily life.
What are examples of green technology in Malaysia?
Examples include: solar and renewable energy deployment, bio-energy and biomass use in palm-oil industry, waste-to-energy and circular economy initiatives, government incentives for green technology investment via MGTC and policy frameworks via MIDA.
How can I tell if a product’s green claims are credible?
- Look for trusted labels: Energy Star, EPEAT, FSC, and GBI for buildings.
- Check ISO credentials: ISO 14001 for EMS, ISO 14064 for GHG reporting.
- Prefer products with an LCA or EPD published.
- Verify numbers, not slogans: kWh saved, recycled content, emissions.
- Be wary of vague terms like “eco friendly” without evidence.

