Our core technologies include: drip irrigation systems, fuel-efficient barrel ovens, biodigesters, community water chlorination systems, and solar electricity. Over the past two years, we have taken existing knowledge of these technologies and have modified designs to improve functionality, reduce system costs, and increase the use of local materials. We strive to incorporate other appropriate technologies in our work, and our number of core technologies may increase over time.

Drip Irrigation – Fighting food security and increasing income

Drip irrigation is a low-cost, low-tech irrigation method that uses less water than traditional methods. Through the use of plastic tubing with small holes at consistent intervals (commonly known as drip tape), water is distributed directly to the root of a plant. A drip irrigation system requires a water source and typically consists of: a storage device, a piping system, a filter, and drip tape. We have installed systems that use rivers, wells, and potable water for the primary source and are working on low-cost methods to harvest rainwater to allow farmers in the driest, most water scarce areas to increase yields and grow vegetables during the dry season. Our system uses a metal barrel as a storage device, durable plastic hose for the piping system, and plastic connectors that connect drip tape to the plastic hose. All materials are purchased in Nicaragua.  more…

Biodigesters – Preventing deforestation while saving families time and money

A biodigester is a simple technology that converts animal and organic wastes into biogas and nutrient-rich liquid fertilizer. The biogas can be piped to a simple gas cooking range and used as fuel, while the fertilizer can be put back on crops to increase yields. Biodigesters can yield up to five hours of gas per day, allowing families to stop cooking on wood-burning stoves. This change drastically improves their health by removing the toxic wood smoke from the kitchen, and saves a significant amount of time and money spent to provide firewood. more…

Fuel-Efficient Barrel Ovens – Empowering women with a safe, simple method to create income

Traditional ovens in Nicaragua are made of dirt with one cavity to place coals and bake. They are dangerous, slow, and require a tremendous amount of firewood. The EOS oven design consists of a metal barrel, bricks, and rebar and uses 92% less wood than traditional ovens. This design is also much safer to use than traditional ovens and allows for continuous baking. more…

CTI-8 Water Chlorination System – Providing communities with clean drinking water

In rural Nicaragua, drinking water contamination is endemic. There are thousands of communities with basic water systems that lack filtration or chlorination capabilities. EOS International partnered with Compatible Technology International (CTI) in 2011 to address this problem by chlorinating community water systems. CTI developed a low-cost, low-maintenance, non-electrical solution that attaches to the water entry point in any rural community’s water tank. This solution is called the CTI-8 water chlorinator. Together EOS and CTI have brought clean drinking water to over 100,000 Nicaraguans and are working towards a goal of reaching 250,000 people by 2014. more…

Solar Electric System – Providing homes with bright, smoke-free light

Installing a solar panel in a rural communityThere are many communities that are outside of the reach of services like electricity. We bring affordable solar energy to homes, giving families electric lights for the first time in their lives and eliminating the use of smoky diesel or kerosene lanterns. Watch a video about the impact.

Future Projects

There are many other technologies that can help rural families increase their incomes and improve their health. EOS International is working with other development groups and engineers to develop new technologies and pursue future projects. Currently, our team is working on developing a biochar producer and coffee roaster. Look for more information on these technologies in the near future.