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View Progreen's top competitors like Clean Energy Systems, Inc., Eco Smart Systems, and Ecological Solutions.

Natural Power
Natural Power is a leading independent consultancy and service provider for the renewable energy sector . The company offers proactive and integrated consultancy, management and due diligence services, backed by an innovative product range, across the onshore wind, offshore renewables, solar and storage, renewable heat and infrastructure sectors, whilst maintaining a strong outlook on other new and emerging sectors. Established in the mid 1990s Natural Power has been at the heart of many groundbreaking projects, products and portfolios for close to three decades, assisting project developers, investors, manufacturers, research houses and other consulting companies. With its iconic Scottish headquarters, The Green House, Natural Power has expanded internationally and now employs over 400 renewable energy experts across 14 international offices. Providing planning and environmental, analysis, construction and geotechnical, operations and asset management and due diligence services, Natural Power is uniquely a full life-cycle consultancy – delivering technical advice from feasibility to finance and every project phase in between. Natural Power has consistently invested in product development and technical research in order to progress certain key areas within the industry such as the operational management of renewable assets through our ControlCentre, the design and assessment of wind farms in complex flow and the use of remote sensing for wind measurement.
Castle Douglas, GB
Private
$386.7M Revenue
http://www.naturalpower.com/
599 Employees
Clean Energy Systems, Inc.
Deploying technology that makes 'Power without Pollution' a reality. Safe, reliable power that doesn't compromise the environment: It's been our mission since the beginning. Clean Energy Systems has successfully transitioned proven and reliable rocket engine combustion principles into a flexible and economically attractive energy generation system for our planet. CES technology enables cleaner and more efficient co-generation of power, steam, water, and CO2 and offers the world a new perspective on the way we assess the value of natural resources. Our core competence allows us to precision engineer complex and intricate technology solutions that meet your needs, be it in combustion, partial combustion, heat transfer, or other applications. Among others, it enables us to precisely control the conversion of a wide variety of fuels with oxygen in oxy-combustion processes. Oxy-fuel combustion generates a drive gas composed of predominantly steam and CO2. This uniquely efficient process allows our customers to profitably utilize fuels that would otherwise be marginal or uneconomic for commercial energy generation. Facilitated through partnerships with our customers and shareholders and enabled by an exceptional research and demonstration facility, CES has developed and built a unique product portfolio. Centered around customized precision-engineered components, our portfolio encompasses 20 to 200 MW steam and CO2 generators, drive gas reheaters, steam/water separators, pressurized heat recovery systems, 30 to 150 MWe expander turbines, and more. These solutions are ready to fulfill our customers' needs for zero emissions power, enhanced oil recovery, and the expansion of natural resource assets.
Rancho Cordova, California, US
Private
$13.6M Revenue
http://www.cleanenergysystems.com
34 Employees
GREEN ECO SOLAR SOLUTIONS LTD
GREEN ECO SOLAR SOLUTIONS LTD is a construction company based out of 3 THE LANTERNS 16 MELBOURN STREET, ROYSTON, United Kingdom.
UK
Private
$6.1M Revenue
https://greenecosolutions.com
7 Employees
G2 Leader Summer 2026 G2 Best Est ROI Mid-Market Summer 2026 G2 Easiest Admin Mid-Market Summer 2026 G2 Most Implementable Summer 2026 G2 Best Results Mid-Market Summer 2026 G2 Lead Capture Mid-Market Summer 2026 Inc Fastest Growing Private Companies 2026 Inc Best Workplace 2026
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