Most recent posts Blog archive

Planning access to electricity under the SEforAll initiative in Ecuador

On March 6, a third workshop was held in relation to the preparatory studies leading to a national electrification plan for universal coverage throughout Ecuador. This is the third workshop supported by Columbia University's Sustainable Engineering Laboratory (SEL) within this activity. The two previous workshops were carried out to, first,...
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qSEL Project Updates

Our lab has been busy over the last year. If you're new to some of our projects or just want an overview, here are a few introductions: Acacia Irrigation Acacia Irrigation is an off grid battery-less solar pumping system. Our lab currently has three working systems in Gabar, Senegal. The...
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A Library for Portier with asyncio

Originally published at -for-portier-with-asyncio/ In a previous post, I said: Down the line, there will be client-side Portier libraries (or, at least, other demo implementations) for various languages. Until then, you’ll need to do some of the heavy lifting yourself. Well, I decided to self-fulfill this prophecy. Introducing… the...
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Quench Team Visits Uganda

Our Quench team visited Uganda to gain new perspective on the project. The team traveled around southern Uganda touring different water facilities and existing tap stands in Mbarara, Karamoja, and Ruhiira. This trip spawned new ideas and a fresh outlook on the project. Once back in the states new test...
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Celebrating More Than a Year of Shared Irrigation

The one year anniversary has come and gone for our shared irrigation system dubbed Acacia Irrigation. Three systems each serving seven small farms are up and running in Senegal. All three systems have seen high usage almost since the time of installation, and now they are all running with full...
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The Remote Debugginator (2015)

The Remote Debugginator
The Remote Debugginator is a device created for the Acacia Irrigation Project to enable remote access to a LAN network over 3g. We have three irrigation sites serving about 20 farmers’ fields. Each of these sites has a Raspberry Pi collecting data on sunlight, temperature, power consumption, and pump usage....
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Symposium on Sustainable and Affordable Energy Challenge for the World

The last few years have brought global energy issues to the fore. At the recently concluded COP21 in 2015, it became clear that both developing and developed countries will need to accelerate deployments of renewable energy. This puts many developing countries in a technologically and financially challenging position where they...
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ICT and SDGs

The Sustainable Engineering Lab (SEL) collaborated with The Earth Institute and Ericsson in preparing a report highlighting the revolutionary role of ICT as an enabler and accelerator to achieve the Sustainable Development Goals (SDGs). For example, ICT is enabling new business models in energy access, agriculture and access to rich...
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First four farmers are irrigating their fields with our centralized solar array.

Water Pump
Installation: The first two submersible pumps (Grundfos SP8a-5) were installed in January by our local SEL team in Gabar serving the first two beneficiary farmers.     In late February, the SEL team traveled to the site to check on the system and install two additional pumps. Conditions during the...
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Nigerian Utility KEDCO Maps 10 Million Meters

Animated map
  Nigeria faces tremendous challenges with respect to electricity access. A high population and low access rate mean that the country is second only to India in the total number of its citizens without a grid connection. Moreover, since efforts to expand the grid have not kept pace with population...
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Most recent posts Blog archive