Cluster: Clean technology

Cluster: Clean technology

A process, product or service which reduces negative impacts on the environment while offering competitive returns for investors and customers. Clean technologies provide solutions which reduce energy usage, use sustainable resources or protect the environment.


Clean Technology (or cleantech) is an umbrella term for a class of technologies and services that reduce negative environmental impacts through energy efficiency, sustainability, and environmental protections. Clean technologies and products are expected to be competitive with and even superior to conventional technologies and products while reducing costs, inputs, energy consumption, waste or pollution and offer investors the possibility for significant return on their investment. Clean Technology has increased as an investment sector since 2000 with the rise of awareness of human impact on the natural environment.

The term has been often differentiated from "green" or "environmental" technologies, with the idea of "green" or "environmental" technologies covering regulatory-driven technologies (such as smokestack scrubbers) with limited opportunities for returns. Greentech remains a term often used interchangeably with cleantech.

Although strict definitions of what is included in the clean technology sector differs among industry participants, the most cited definition coming from the Cleantech Group. This definition focuses on investment and includes water purification, eco-efficient production techniques, renewable energy, green technology, materials and chemicals, sustainable and renewable agriculture, and sustainable business.

Resources and Environment

Carbon capture and storage/sequestration

Carbon capture and storage/sequestration is the process of capturing carbon dioxide formed during power generation and industrial processes and storing (sequestring) it so that the carbon dioxide is not emitted into the atmosphere. Carbon dioxide is often stored underground in depleted oil and gas fields or in deep saline aquifers. Other companies are using the carbon dioxide for commercial applications.

Carbon conversion

Carbon conversion relates to the use of carbon dioxide as a raw material for the production of urea, methanol, polycarbonates, cyclic carbonates and specialty chemicals. Other uses of carbon as a raw material have included plastics, fibers, and rubber.

Environmental monitoring

  • Crystal IS

Direct air capture

Direct air capture is a technology used to capture CO2 directly from the atmosphere.

Water and Air

Mining Industry

  • Bio-Mine
  • MineSense Technologies
  • Universal Bio Mining (UBM)

Wastewater treatment

Wastewater treatment is the process of treating wastewater from various industries and municipalities with an acceptable environmental impact. The process works to return the treated water to the water cycle. Clean technology companies in the wastewater treatment industry work to create less environmentally impacting treatment processes and use for the effluent and waste.


Waste management

  • Enerkem
  • Veolia

Materials and Chemicals

Green Concrete

Green Concrete (or Clean Concrete) is a technological response to the manufacturing and carbon demands for conventional concrete. These technologies include reduced-carbon manufacturing, carbon sequestering concrete, concrete recycling, environmentally-friendly concretes, mixed-materials concretes and concrete alternatives.

Reducing carbon emissions for the manufacturing of concrete includes the greater efficiency of the conventional concrete industry, technologies capturing and including carbon dioxide from the manufacturing process and mixing it in the concrete, recycling concrete, or the recycling of other waste or cast-off materials (such as fly ash, steel slag, or recycled glass) into the manufacturing of concrete.

Environmentally-friendly concretes are conventional concretes mixed or manufactured to provide an environmental result. The two best examples of these are insulated concretes and pervious concretes. Insulated concretes are considered environmentally-friendly for their energy efficiency qualities in larger buildings allowing for less energy usage in heating and cooling. Pervious concretes allow water to pass through them, reducing wash-out of nearby soil and reducing water build up and the possibility of flooding.


Bioplastics are plastics made from renewable biomass sources, including corn, potatoes, wood, food waste, agricultural by-products, and lobster shells. The name bioplastic is also applied to biodegradable plastics which break down into natural substances such as water, carbon dioxide, and compost. The two most common bioplastics are polylactic acid (PLA) and polyhydroxyalkanoates (PHA).

Textiles and Materials

  • Sonovia
  • Graphene

Energy and Power

Renewable Energy

  • BioPower Systems (BPS)
  • GaN Systems
  • Involt
  • NovaSolix
  • Terrestrial Energy


First generation biofuels include ethanol and plant oil produced from sugar and starch. Second generation biofuels are produced from non-food biomass called lignocellulose and are called cellulosic biofuels. Third generation biofuels are derived from algae and produce feedstock as well as fuel. Fourth generation biofuels are electrofuels or photobiological solar fuels.

  • Proterro

Energy Storage

Energy Infrastructure

Energy Efficiency

Energy analytics and management

  • Stem
  • Lucid
  • EcoFactor
  • Simple Energy
  • BuildingIQ
  • FirstFuel Software
  • TempoIQ
  • Bidgely
  • Enertiv
  • WegoWise
  • WattzOn
  • eCurv
  • Awesense
  • Opus One Solutions
  • ENBALA Power Networks

Petrochemical processing alternatives

  • METabolic EXplorer
  • Ramaco Carbon
  • TerraPower

Coal and alternative uses

  • TerraPower
  • Ramaco Carbon

Transportation and Logistics

  • Proterra
  • Gogoro
  • Lilium
  • Enerkem

Agriculture and Food

  • Aerofarms
  • Farmers Edge
  • Semios
  • Terramera
  • Agrosight
  • Proterro (feed industry)


  • Air Protein
  • Proterro
  • Solar Foods

Digital Agriculture/Digital Farming/Precision Agriculture

Clean technology associated business

Strategy, development and marketing support

  • Enovation Partners
  • Cleantech Group (CTG)
  • Cleantech.Org
  • Clean Edge

Clean technology investment

  • The California Public Employees' Retirement System (CalPERS Clean Energy and Technology Fund)
  • The California State Teachers' Retirement System (CalSTRS)
  • Kleiner Perkins Caufield & Byers
  • Khosla Ventures
  • New Enterprise Associates (NEA)
  • DFJ
  • E8 Angels
  • Investor's Circle
  • VantagePoint Capital Partners
  • RockPort Capital Partners
  • Foundation Capital
  • Clean Energy Venture Group
  • DBL Partners
  • Applied Ventures
  • Footprint Coalition

Clean technology ICOs

  • 3dP-Token
  • 4NEW
  • AQUA
  • BitLumens
  • CCET
  • CO2 Token
  • Crudecoin
  • Deneum
  • Earth Token
  • Energy Premier
  • Envion
  • Farad
  • GreenX
  • Grid Plus
  • HomeMine Token
  • KWHCoin
  • MegaWatt
  • MITO
  • Node
  • PLATIO Coin
  • Power Ledger
  • Pylon Network
  • RGS
  • Ri?X
  • ROX
  • SunCoin
  • SunContract
  • Synthestech
  • Titan Coin
  • Torus Token
  • WePower

Academic researchers and groups

Energy storage

  • M Stanley Whittingham (Binghamton University, New York)

Clean energy materials and technology

  • Graphene


September 23, 2020

California to ban all internal combustion engine vehicles by 2035.

September 3, 2020

With the shift toward electrification, decoupling remains key for driving decarbonization

September 3, 2020

United States Department of Energy Announces $29 Million in Fusion Energy Technology Development

September 3, 2020

Oil-field services speed adoption of clean energy technology as the coronavirus pandemic takes its toll on crude oil and natural gas businesses.

September 3, 2020

Breakthrough in Artificial Photosynthesis Lets Scientists Store The Sun's Energy as Fuel

September 2, 2020

Bloom Energy and SK E&C Announce 28-Megawatt Deployment of Fuel Cell Technology to Power South Korea's Historic Hwasung and Paju Cities

September 1, 2020

Total's energy diversification efforts target South Korean wind farms.

September 1, 2020

Wireless Device Produces Clean Fuel Using Artificial Photosynthesis

September 1, 2020

Solar outshines wind to become world's biggest new power source

September 1, 2020

Unilever to Eliminate Fossil Fuels in Cleaning Products by 2030 as Part of €1 Billion Clean Future Investment

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Further reading


Air conditioning technology is the great missed opportunity in the fight against climate change

James Temple


September 1, 2020

Carbon capture and storage in the USA: the role of US innovation leadership in climate-technology commercialization

Beck, Lee


December 24, 2019

Clean Technology Expert Praises Vanadium Flow Battery - VanadiumCorp Resource Inc.


June 16, 2017

Cleantech Definition

Jason Fernando


August 29, 2020

Complete Analysis of Global Clean Technology Market with Profiling Leading Companies like Kaercher, GreatPoint Energy, Sapphire Energy, AndeSolar - Galus Australis


August 28, 2020

Danish Experiences with a Decade of Green Concrete

Claus Vestergaard Nielsen and Mette Glavind


January 25, 2007

DuPont Clean Technologies to supply alkylation technology for Brunei refinery

Nicholas Woodroof


August 21, 2020

Energy Innovation Spend Needs to Triple by 2030 to Hit Climate Goals

Will Mathis, Akshat Rathi


July 2, 2020

Global Clean Energy Technology Market Size, Status and Forecast 2020-2026 - Scientect



September 3, 2020

Low Carbon Concrete for the First Time Required by Law | Green Building Law Update

Stuart Kaplow


February 2, 2020

New Report inspects Clean Energy for Defense Market [PDF] Trends, Drivers, Strategies, Segmentation Application, Technology & Market Analysis Research Report to 2026 |ABB, Acciona Energy, Alstom, CPFL Energia - The Daily Chronicle



September 3, 2020

Ottawa planning to require low-carbon concrete in federal construction projects

Maura Forrest


June 11, 2020

Paths to low-cost hydrogen energy at a scale for transportation applications in the USA and China via liquid-hydrogen distribution networks

Li, Xianming Jimmy, Allen, Jeffrey D, Stager, Jerad A, Ku, Anthony Y


March 27, 2020

Scope of biodiesel from oils of woody plants: a review

Thangaraj, Baskar, Solomon, Pravin Raj


June 1, 2020

Study: Environmental protection policies, clean technology mandates can spur economic growth

Douglas Donovan


May 4, 2020

Sustainable microgrids are the future of clean energy

Alex Behrens


March 4, 2020

What is Cleantech Investing? | INN

Melissa Pistilli


July 7, 2020

What is Cleantech? - Cleantech.Org

Neal Dikeman


Wireless Device Produces Clean Fuel Using Artificial Photosynthesis

Jack Dunhill


September 1, 2020

With the shift toward electrification, decoupling remains key for driving decarbonization | Greenbiz

Rachel Gold and Jessica Shipley


September 3, 2020

Documentaries, videos and podcasts


Breakthrough in Nuclear Fusion? - Prof. Dennis Whyte

February 25, 2016

Building Back Better by Fuelling Innovation in the Clean Energy Sector: Roundtable #6

May 27, 2020

Can Clean Tech Clean Up Our Future? (Full Program)

February 13, 2017

Canadian clean energy opportunities

March 31, 2017

China's Clean Tech Revolution

June 29, 2017

Clean energy presents 'massive' market opportunity, analyst says

March 1, 2019

Clean Tech Investing: Novel Ways To Fund Your Cleantech Company

October 30, 2015

Faces of the Recovery Act: Sun Catalytix

February 26, 2010

Pioneers of Clean Technology - Ahmad Chatila - The Making of SunEdison

May 28, 2015

Tracking Clean Energy Progress - Globally and in the Nordics, December 12

December 12, 2019

What is Clean Technology

April 18, 2014

Why clean technology is a trillion-dollar opportunity

October 11, 2016




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