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Top Cleantech Site In The World

Image Credit: Solar panel, wind turbine & globe via ShutterstockCleanTechnica is the #1 cleantech-focused website in the US and the world according to and

Our work has been referenced by the New York Times, Washington PostSlateMSNBCThink ProgressReutersScientific American, and plenty of other sites. Some of the cleantech industry’s top CEOs, directors, founders, and board members read us regularly. But plenty of “common citizens” are also addicted to our site.

CleanTechnica strives to be (er… remain) the most indispensable website on the planet for cleantech news and commentary. We have been covering the cleantech industry obsessively since 2008, before it was popular for mainstream media to dedicate blogs or subdomains to the topic, and we are now a well-recognized leader in this field.

Recognition from Around the Interwebs

The following are just some of the indications that we are a top site to follow or reference for cleantech news, facts, or commentary:

But What is Our Focus?

Technology-wise, our focus is solar power, wind power, energy efficiency, and clean transport. However, we also get into many other topics — geothermal, hydropower, nuclear power, climate change, energy storage, and more.

Overall, I think our top goals are to:

  1. inspire people and help them to take cleantech action in their lives;
  2. share correct information on cleantech, including debunking widespread myths and horrible coverage in the mass media.

All in all, we want to be a useful site for the world and want to develop a strong, useful community of world citizens in order to help move humanity forward in a positive direction!

Image: Solar panel, wind turbine & globe via Shutterstock

  • SvenAERTS228

    So how did you manage to build the nr 1 portal for renewables and how do you keep nr.1 ? It’s like a wiki where people can help building / referencing clean techs and help organising, help adding tags?

  • Marty B. O’Malley

    I did a search on the web site for Alabama Solar Power Assoc for STEEL MILL and there was ZERO data available on the subject. So, can you tell me the name of the steel plant in Alabama with a large solar presence?

  • David Sharp

    I just discovered CleanTechnica and so glad I found ya. Great work! I look forward to contributing to the conversation you’re having with the world. EV+PV makes undeniable ecologic and economic sense.

    • Bob_Wallace

      Welcome. The more good input we get the more we all know.

  • Thomas Stacy

    Giving US manufacturers an incentive to produce less or to shift times of production to times less convenient/efficient to their bottom lines and workforce demands careful consideration. Perhaps an analogy is that we pay (using our tax dollars) farmland owners not to grow crops on some land some years/seasons while allowing grain, dairy and meat prices to escalate and while also mandating some cropland is diverted from food production to energy production and while subsidizing farm equipment which does not require a financial payback justification for the full cost of the machinery upgrades. History shows that the more governments intervene in markets, the less efficient they become. This is especially true in complex markets such as energy.

    In addition, governments are mandating the consumption of wind electricity which produces counter to the cycles of electricity demand. The combined effect,then, is to have society bend to the whim of the weather.

    But specific to energy efficiency aside from wind energy, the basic question is: What are the net, long-term costs and benefits of forcing society to bend to the will of the electricity system vs. continuing the paradigm that the electricity system is required to bend to the will of society? The answer is foundational to all other considerations.

    • Bob_Wallace

      We already pay some industry to shut down when supply is significantly stressed. And some industry runs their most energy demanding processes late at night when electricity costs are lower.

      We’ve also seen some studies that find that some commercial uses can be cut without causing even noticeable changes to workers or process. For example one building’s air circulation system was adjusted up and down to match solar input. Over time the same number of air exchanges were made but the flow varied with passing clouds.

      It’s less likely to be government regulated but a financial arrangement with the power provider. EV charging, for example, will likely be commonly used as dispatchable load. The average EV will need about three hours of charging. Utilities could control the actual time of charging and offer low rates in exchange.

      Utilities are going to be willing to sell power at a better rate when they have plenty in order to lower demand when supply is low. That will allow them to avoid bringing expensive peaking power on line.

  • Davison Ushe

    I am setting up a renewable energy company. I need your contact details for business discussions. Contact me at: +447598111792. Whatsaap me on: +447460902332 or email me at: Thank you.

    • Bob_Wallace

      Top left of page – “About” – drop down – “Contact Us”


    In Hydro Electric Power Generation Projects, we are
    generating Power with the help of accumulated water in Reservoirs at height. We utilize the down flow water Pressure to
    rotate Turbines.
    In this Project, we use people weight coming down
    from height, to rotate Turbines.
    For example,
    a) On Tirumala Hills, there will be 50,000 people at all times for generations together and daily. 1, 00,000 people are coming down and going up Hills for Lord Balaji Darshan. We can use their movement in Power Generation using Roller Coaster Technology.
    Power Generation calculations on Tirumala Hills.
    From SRIVARI METTU to Tirumala Hills the Slant
    Distance (say) 2 K.M. = 2,000 meters.
    Power Generation on Tirumala Hills. Calculations theoretically with formulas.
    From SRIVARI METTU to Tirumala Hills the Slant Distance (say) 2 K.M. =
    2,000 meters.
    Approximately, how much Power Can be generated when 10 Tons Load
    (8 Tons Bus + 2 Tons for 50 Passengers in the Bus) slides down on trolley.
    Tirumala Hills 2,000 meters distance
    Srivari Mettu (steps way)
    A layman’s — ‘Power Generation Calculations’. – 550 M.W.
    As per notes from attachment, (Work & Energy Chapter – PAGE 6) the following is the ‘Power Generation Calculation’.
    Please follow Link:-
    One trip – 10 Tons Load (20 – Passenger filled car weight 2 Tons + 8 Tons Bus weight) generates 278 watt per hour as per enclosed attachments. –
    formula:- (load in kgs x gravity x ½ distance)
    10000 x 10 x 1000 = 10,00,00,000 Joules = 27777.8W
    27,778 Watts per hour
    To transport up & down Hills, Pilgrims –
    1,00,000 per day @ 50 persons in Bus per trip, the RTC will ply down 20,000 trips 20,000 trips per day
    For every Trip load the Power generated will be 28 K W
    For 20,000 trips down 560 m w
    Roller Coaster image & Link:-
    These images are showing Public coming down on Roller Coaster in open cars, whereas, in our Project, we can arrange cars enter in closed Chambers, which roll down. These cars filled with Pilgrims who are chanting ‘Govinda nama sankeerthan’ during journey. In other words, we are providing ‘Garuda Seva’ to Pilgrims by transporting them up & down.
    b) At Chennai Central Railway Station, passengers getting down will move to Park
    Station to reach various parts of City through sub-urban Railway. A very
    little per cent age of Public depend on their own vehicles, 3- wheelers or
    Public Transport.We can shift the people from Chennai Railway Station to Park Station using Roller coaster Technology and also we can generate Power using their weight. We can arrange 20-seater Passenger trolleys in racks readily available on the platform. When Passengers getting down, they will be collected in trolleys and lifted to a height, say 30ft in the Chennai Central Railway Station Building and then Rolled down to Park Station.
    With this Project, Power Can be generated and along with shifting of men / material between Stations.
    c) B R A W O
    In the 24 hours of the day there may be 50 to 60 trains are ‘coming in’ and ‘going out’ of Benagaluru Railway Station. With every train bringing in 1000 passengers
    each, the number of passengers it is handling (1000 * 50) 50,000 people. And out of them (say) 5% will ‘go out / coming in’ in their own Vehicles, another 10% use Autos, the remaining passengers will come to Kempa Gowda Bus Station to go to their destinations through Buses.
    Can we provide them easiest way to reach the Bus Station?
    People cross the Railway Platforms through “Foot Over Bridge”. The Foot over Bridge height say 30 ft height. If we use a Lift for another 30 ft height, totaling the height is 60 ft height. From that height at the Centre of the Railway Platforms to Bus station we provide, a Path Way. It is just like a RAMP. People come down easily to Bus Station without any hurdles, like crossing Platforms, parking area, subway, steps, etc.
    We can provide trolleys with 20 passengers (2 Tons weight approximately) each which can slide easily to the distance and save the time & energy of the Passengers.
    Advantages in this Project:-
    (1) There is no Private Property in between these two points – Rly Stn & Bus Stn.
    (2) The height of the Foot Over Bridge at Railway Station and the Ground Level at Bus Station may be more than 60 ft
    (3) In addition movement of men / material, there will be scope of Power Generation – By sliding the 2 Tons Load Trolleys on the Rails on RAMP along with Pathway.
    A layman’s — ‘Power Generation Calculations’. – .5 M.W.
    As per notes from attachment, (Work & Energy Chapter – PAGE 6) the following is the ‘Power Generation Calculation’.
    Please follow Link:-
    These calculations I made for Benagaluru Path Way Project.
    2Tons Load (20 – Passenger filled car) generates 278 watt per hour as per enclosed attachments. 2000 x 10 x 50 = 10,00,000 Joules = 278W
    When train arrives into Railway Station, let us say, 1000 Passengers reach, get down and use the Transport will be 800 nos. 800 Passengers will be transferred in 40 Loads (800/20 = 40).Loads
    For every ‘four’ loads the Power generated will be more than 1 Kilo Watt
    (4*278 = 1,112). 1 K W
    With the Passengers in one train (40 Loads) we can generate 10 Kilo Watt Power per hour. 10 KW
    With the Passengers from 50 trains per day, we can generate 50*10 = 500 (.5 MW) Power. 500 KW =.5 MW
    Concept & Design – Patent Application No.4110/CHE/2014, dt.22-08-2014
    How much Power required to lift 2 tons Load to 30ft height”
    “2000x10x9 ”
    2000 x 10 x 9 = 1, 80,000 Joules
    Hence, Power requirement to lift 2 Tons Load (20-Passenger trolley) to a
    height of 30 ft is: – 50 watt per hour as per following conversion link:

  • Carlton Parfitt

    You guys rock!!!!!!!

  • Mikeymike801302

    I am about to come into a clear title for about 80 acres of flat Florida farmland from my grandmother’s estate. I want to take all 80 acres and develop a solar and wind farm. I could pay for the up-front costs with a loan against the equity in the property, then sell the energy wholesale to Florida Power and Light. Whom would I contact first because FPL are incompetent.

    • Thomas Stacy

      LOL!!! FPL is the largest renewables developer in the nation (NextEra) and even their alleged incompetence won’t allow them to install wind in Florida because the wind resource is too feeble. If you are comfortable, Mike, receiving other people’s money at the point of a gun, then go for it. But other people’s tax dollars are required for wind and solar to be built, and failure to pay our taxes results in incarceration (at the point of a gun if necessary.) Your call, dude. But I would NEVER get into a business that can’t make it on its own in the free market. I would find it to be severely anti-American.

      • Bob_Wallace

        Perhaps you should look at some wind maps for onshore and offshore wind resources in Florida.

        BTW, you must really be against nuclear which can only be built with taxpayer assistance and against coal which is supported by taxpayers to the tune of $140 billion to $242 billion a year.

  • binaya

    Hi, I want some information about solar powered lamp post suppliers in India. Can you give me the website and contact information please.

    • Bob_Wallace

      I doubt anyone here has that sort of information. I’d suggest you spend some time Googling to see who makes a quality product and then contact them to see if they have a distributor in India or if they ship.

      Here’s a company that turned up with a quick search for “solar powered street lamps”.

      I know nothing about them but I’d put them on your list and look for other companies. Then do your due diligence by checking quality and reputation.
      CalTrans – the California State highway department uses solar lighting at some more remote sites. You might contact them and see if they have any recommendations.

      Also, this could be a great industry for India. This is not a product that would take a lot of engineering.

  • Barbara Francis

    I don’t know how I found CleanTechnica or how it found me, but I liked it from the first. I almost dropped it in the interests of getting less email, however, since it seemed to come almost every day.

    But I kept reading it. Now I wish it came every hour.

    Not really!!!! But thanks for being there and doing such a great all respects:content, scope, concision, humor. Thanks!

    • Zachary Shahan

      Thanks a lot! 😀

      Believe it or not, would love to cover about twice as many stories every day than we do. But it seems to be against the interest of our readers, and most certainly is against the interest of our writers (their pay would drop), so we don’t. 😀

  • Ahilan Raman

    Thank you for your good work.

    • Zachary Shahan


  • Arjaytech

    i am inspired to see some innovation.

    it was a nice feelings..

  • Herbison

    I have just been granted a patent on a tidal stream concept I call Eco-FEW.L it is very simple in design ,easy to build and maintain , and I believe has potential to be the most viable renewable energy production system to date , and be a viable business conceot ,even if subsidies where not available, I need any and all possible infirmation or ideas that may allow me to contact investors to take this concept forward , would be grateful for any imput from your readersThankyou very much.Frankie Herbison.

    • Jaffer Sait

      Hi Frankie. Good to hear that you have been granted a patent on a tidal system called ECOFEW.L and many congratulations for the same.

      Please visit the site who are into funding such projects as well as There are a whole lot of investors waiting for opportunities to invest in new projects and one another is Please feel free to contact me at any time for any further assistance on

      If and when you are able to internationalize your business do get in touch with us here in Oman at and we would certainly look at the opportunity of working with you to introudce your technology in our beautiful country.

      Wishing you all the best in your efforts.



  • Vittal N Telkar.

    sir,i felt very happy about your new innovation about solar p v models. i wish to be know more about it. if possible i can. Vittal N Telkar.
    About me: i am working as a Branch manager , in Orb enery pvt. Ltd.,
    in the field of solar waerheaters, pv moedls AC/DC Systems. solar lights.
    Both CFL And LED.

    Thanking you sir.

    Vittal N Telkar.

  • Admin

    Please can you link me with companies that have experience and have installed wind/solar energy power system for Cell Towers and cell sites across a large geographical area of a country with capability for a central monitoring installation.
    My company has won a contract to install solar/wind power energy to replace diesel electrical generating sets at 1105 sites across the country of Ghana. We need a reliable and competent technical partner.
    Rafik Brown

    • Jaffer Sait

      Hi Rafiq,

      With regard to your request on the website of Clean Technicia, for specialized companies in the field of solar/wind energy for your project in Ghana, please visit the website which will provide the best, specific and perfect solutions that you are looking for and the email contact details are copied in this email.

      Best of luck for your project.

      With compliments, greetings and best wishes from Majestic Muscat.

      Jaffer Mohamed Sait
      Director – Corporate Development
      Sultanate of Oman

      Mobile : (00968) 99264684

      P.S for Conor – I have copied this mail of a prospect to you. Best of Luck.


      check out GREAT PRODUCTS!

    • Thomas Stacy

      You sure do, but you also need a reliable and competent fuel set! Hint: Wind and solar are not it.

      • Bob_Wallace

        Thomas, you are way off topic. Please follow site rules.

        BTW wind + solar + storage = reliable and complete.

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