Ruud van Eck
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  • Clive Coker
  • Timothy Mahoney
  • John Rowe
  • Stacy Hendricks
  • Bas Vlugt

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What is the name of your company or organisation?
Diligent Energy Systems BV
What is your position in your company or organisation?
What does your company of organisation do?
Diligent Energy Systems is an innovative company that produces biofuels from tropical plants: biodiesel from Jatropha Curcas, and bio-ethanol from waste from coffee production in Colombia.

I attache great value to sustainable entrepreneurship according to the principle of the three "P's": people; planet; and profit.

Diligent wants to contribute both to reduction of global warming, and to creation of employment in developing countries. The overall objective is triple profit: profit for society, for the environment, and an adequate profit for Diligent itself. Please take a look on our website to learn how Diligent does this. Under the headings "social" and "environment" you can read more on these topics.
In which African countries does your company or organisation operate?
What is your website?

Comment Wall (7 comments)

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At 6:17pm on May 23, 2011, Suza Adam said…
On the 17th & 18th October 2011 the first Clean Technology business and investment matchmaking conference for the African continent is to be held at the Sandton Convention Centre, in Sandton (Johannesburg) South Africa.

Called Viridis Africa, the event is dedicated to entrepreneurs and corporates who are seeking funding to introduce clean technology solutions and services.

Principals who would present their business opportunities at this event would have the audience of numerous local and foreign investors, stratified according to their interest and investment criteria.

Investors would include venture capital, private equity, project and corporate finance outfits and others dedicated to the clean tech sector. They would also include North American, European funding agencies, major Asian industrial conglomerates, technology specific investment funds and major companies who seek strategic alliance and acquisitions.

Please note that the deadline for your business proposal submission is 30th of July 2011.

Visit for more information, or contact
At 6:42pm on September 1, 2010, shumet demeke said…
Dear Ruud VanEck

Please let me know if you would like to Expand your project in Ethiopia for I can Help you in Providing you a potential proposal for cultivating Jatropha carcas as an energy crop.
At 12:29am on August 21, 2009, Clive Coker said…
Hi Ruud, Good to hear that you will be in Ghana addressing the BioEnergy Markets conference in October. At the moment I do not expect to get to Ghana then, however our Operations Director, Ohene Akoto is very likely to be representing Jatropha Africa at the event. Best regards - Clive
At 8:19pm on August 2, 2009, CLIVE RICHARDSON said…
We seek to illustrate a ten year Centre of Excellence (COE) driven, integrated agriculture to Industry bioenergy project for the Kilimanjaro Region of Tanzania. (Two-Three years to set up and establish first harvest values + ten years of systematic extension and management of complete value chains) for approval by the Tanzania Investment Promotion Centre.

The prime areas of activity will be:

COE- at Lake Chala, with indication that this will evolve to be Univeristy Kilimanjaro East African Sustainable Bioenergy Centre; (includes + 200Ha's of Land).
CHP-Waste to energy and Biomass to Energy Arusha town (+160,000pop) and Moshi Town (+250,000pop).
City Sludge Collection and Processing Centres- Arusha and Moshi.
KIA Biorefinery- Kilimanjaro International Airport. To include CHP-Pyrolysis-MixAlco-Bio Jet Fuel and related value added liquid fuels and lubricants plus other commodity production.

We are currently assessing the requirements that will be essential for the professional agricultural extension of Jatropha Curcas Linn at specific rain fed suitable locations (non-food/non pasture or Miombo woodland/forest land locations). Setting a target of 30,000 Ha's of extension per annum.

(NB: While using Jatropha as our benchmark plant species we are aware of alternative species and waste from current (Sugar, Coffee, General) agriculture for biomass)

We have set a target of $4000 USD per Ha of extension and support; inclusive of Government of Tanzania led land assessments, allocations and community collaborations; placing a premium upon ensuring that correct land areas are identified and allocated to community members under special land title agreements for the cultivation JCL and/or other Biomass/Oil Seed energy marginal land crops with the support of the COE extension professionals, workers and equipment.

The ideology will incorporate a regional calendar of activities to include plant protection and nutrient delivery, harvest collection and transport for processing. Our model will target to harvest Biomass inclusive of oil seeds.

With professional management of the established stands the target will be to obtain up to 6% CJO (Crude Jatropha Oil) from the Biomass and to process 100% of the biomass to usable products, inclusive of recycling nutrients back to the JCL stands.

The intention is to establish a "template" that may guide the cultivation of JCL and other energy crops at strategic locations throughout the subtropical regions and suggest the various biomass processing technologies that can be developed in synergy to deliver a variety of value added energy commodities.

At an average yield of 40Mt of Biomass per Ha the potential is to deliver 1,200,000 Mt of Bio mass from 30,000 Ha, and to increase this each year by a further 30,000 Ha's for ten years. (Target following ten years of harvesting 12,000,000Mt's of Biomass from farming the approved marginal lands of the Kilimanjaro Region.)

National Policy in Tanzania, Kenya, Uganda, Mozambique, Ghana, Nigeria, Angola, Cameroon, Sierra Leone, Congo, DRC, Ethiopia, and others countries suggests that a complete bioenergy model is a requirement for obtaining decentralised energy objectives, liquid bio fuels for domestic and export sales and, for completing the cycle of agriculture that delivers nutrient back to the cultivation areas..

KBC has targeted to have Bio Jet Fuel as a lead to market export driver as delivery FOB at rural International Airports allows for a "Least Cost" export sale and minimum GHG emissions associated with manufacturing.

At this time we have not calculated the Carbon reduction accounts anticipated but will relate this TIC application to the national consultant office of the UNFCCC.

Given the objectives outlines above we would be delighted if Jatropha Africa experts would be in a position to offer details related to the DBOT possibilities with CHP waste to energy processes and suggest the complex Biorefinery servcies required to deliver a comprehensive range of energy products at Kilimanjaro International Airport. Indicating the costs of CHP, Biorefinery and other process technologies as well as projected feedstock requirements and operational outputs.

Additionally we are assuming advanced training requirements for Agricultural Extension, Agricultural Machinery Operations, Repair and Maintenance, Basic to professional farm management skills and of course the very wide range of skills that would be required to support the design, build, and operation of Bioenergy technologies at all levels for a complete Agriculture to Industry project.

The over all objective is to establish the opportunity to replicate a comprehensive agriculture to industry model at strategic locations, raising substantial funds to effect this from multi national resources.

Yours Sincerely

Clive Richardson
At 10:59pm on June 10, 2009, Clive Coker said…
It was a pleasure to meet you in Ghana. I hope your trip to the coast was a success. We found it well worthwhile taking part.
There is a possibility of Ohene and I helping to set up a Jatropha project for a client in Botswana. We are interested in the plants which are better suited to a cooler climate. I will be in touch about this in a month when we have more details. Regards - Clive
At 11:05am on June 10, 2009, Stacy Hendricks said…
Great to meet you too. Really enjoyed talking to you and learning more about your project. I have a group in Cote d'Ivoire very eager to speak to you. They have a million questions... I'll pass your contact information along and hopefully you can connect soon.

Did the conf organizers post the presentations yet? If not, I'd really love to get a copy of your preso. Could you send it to me if possible? Can send it to

Regards, and will talk to you again soon,
At 3:14pm on February 8, 2009, Timothy Mahoney said…
I have tried your oil content testing with petrol and it works. Thanks for the tip as Ether is hard to find.

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