This Week: Renewable Energy Fights Poverty, Makes Great Coffee

Submitted by Derek Newberry on April 18, 2006 - 11:26.

The New Ventures Entrepreneur of the Week series continues with a feature on the Solar Trade Corporation (STC), a rapidly growing business that sells solar-powered coffee dryers to farmers in Mexico and Central America. For this piece I interviewed VP Richard Trubey, who somehow made a huge career leap from the non-profit universe to heading up marketing for a young startup.

Richard laughs as he discusses some of the challenges his team has faced pioneering a completely new design in the entrenched market for conventional dryers, but his light-hearted conversation also conveys an acute sense of big trends on the horizon.

The signs that renewable energy could face a surge of investment are on the rise, as World Changing’s Alex Steffen pointed out over the weekend. But while it is steadily becoming common knowledge for some of the world’s biggest investors that clean tech is a solid investment opportunity, the potential gains for the BOP are often forgotten.

We tend to think of renewables as a developed country interest, something that will have to be put off in emerging economies while they tackle ‘real’ issues first. STC is run by entrepreneurs looking to shatter that myth. Their success in marketing the solar drying system to regional coffee growers shows that even lower-income farmers are willing to pay a little extra for the new machines up front if it means huge savings in energy costs over the long-run. As an added bonus, the system cuts out the middle-man so that local growers are the ones preparing their coffee for sale on the market- this gives them more control over their own product and ultimately more revenue.

The rest of the interview has a lot of interesting pieces in it- Richard and his partners are playing a big hand in setting up a carbon trading market in Honduras, and they have plans to market solar-dried, fair trade coffee nationwide. If you’re reading this from Massachusetts, you can already pick up Café Solar at your local Market Basket… otherwise you’ll just have to settle on reading the article.


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Submitted by Nanda Belliappa on February 8, 2007 - 00:26.
I want a solar coffee dryer for an estate I have in Coorg India. On a daily basis I require to dry the coffee brought on to cement yards by the workers. The quantity is about 7 tons of ripe coffee.I want to know how to get it here, if you have an Indian counterpart and the price for the same.
Submitted by Derek Newberry on February 8, 2007 - 12:15.

Hi Nanda,

Unfortunately, I am fairly certain that STC does not operate in India and is probably focused on expanding solely in Latin America right now. Yoiu may want to check on this yourself, however, feel free to visit the stc homepage at cafesolar.com and use the contact information available there.

 

Thanks,

 

Derek


Submitted by Menya Emmanuel on May 28, 2007 - 06:53.
A greeen house effect solar coffee dryer will be useful to you when it comes to drying your coffee in a short time.I have carried out research about this type of dryer as a student engineer for my final year project at Makerere University, department of agricultural engineering. The GHE solar coffee dryer is built like a greenhouse, consisting mainly of cold drawn steel frame covered by durable greenhouse plastic, developed to withstand the weather and also deterioration caused by the sun. The roof can be either flat or sloping. It is advisable to leave a space of 40 - 70 cm just above the ground uncovered and to have some openings near the roof so that the air can circulate. Platforms made of wood and steel mesh are placed inside the dryer for spreading out the beans. It is possible to have one, two or three levels, depending on requirements. A space of at least 50 cm between each level is recommended for easy access and to allow air circulation. The air inside the dryer is heated by the sun, reducing its relative humidity. The hot dry air circulates around the damp coffee beans, absorbs the water and gradually dries the beans. The air keeps circulating because of the difference in temperature between the inside and outside of the dryer – the hot air rises out of the openings near the roof and is replaced by cold air entering via the openings near the ground.
Submitted by Anonymous on August 29, 2007 - 03:51.
I have liked your idea of the GHE solar coffee dryer but how do I get the details of its design and construction. Thanks in advance
Submitted by Emmanuel Menya on December 1, 2008 - 06:07.
Hi, It's been long since I last logged on to this page!!Pertaining the details and construction of the whole dryer system, you need to get in touch with me through email.

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