The Worlds Most Expensive Consumer Electricity
This is the waste left over after using the world’s most expensive electricity. See if you recognize it. You...
Engineering for Change
Interest: Energy
When the sun goes down, the day ends. No work after dark, no studying. That’s the reality for one quarter of the world’s population that lives without electricity. Inventive design and the falling cost of solar power is lighting up homes that the traditional energy grid has left dark. Power solutions that can scale are filling in the grid gaps with solar, hydro, wind and biogas. With alternative energy solutions, the world is lighting up.
Interest: Energy
Reinventing the Steam Engine
Carl Bielenberg found inspiration in the technological innovations of the Industrial Revolution to alleviate global energy poverty. One look at a satellite image of the Earth at night reveals...
Bioethanol for Refugees: A Startup’s Plan for Weeding Lake...
Looking out from the Kenyan shores of Lake Victoria, a green carpet of water hyacinth floats with the tides. The invasive weed clogs shorelines of Africa’s largest lake, preventing...
Sachs: Foot-Dragging, Not Know-How, Blocks Clean Energy
The transition to clean energy is held up by the fossil fuel sector, not by any technical mystery, Dr. Jeffrey Sachs said at the Movin’ On Summit this month....
Five Questions with Rachita Misra at SELCO Foundation
Rachita Misra began working with the SELCO Foundation in Bangalore, Karnataka (India) five years before the coronavirus pandemic. Trained as an architect and urban planner, Ms. Misra found that...
Microgrids Have a Role in the Global Energy Transition, If T...
I was skeptical when I first heard about the potential of microgrids to solve challenges in global energy access. Microgrids are localized grids that can operate independently from the...
From GravityLight to NowLight: A Startup Pivots as Technolog...
Editor’s note: From GravityLight to NowLight, a startup has overhauled its Internet-famous gravity-powered light. The result is a pivot in design and business model spurred by changing technology and...
Latest Webinar
Seven Off-Grid Refrigeration Prototypes: Finalists from EWB-USA’s Chill Challenge
Draft animals and wood fires count among the power sources for new, extremely low-cost technology proposed in a worldwide...
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The Himalayan Rocket Stove: Now Viral on YouTube
The demo video for an improved rocket stove optimized for use in the heights of the Himalayas has racked...
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What’s Cooking in Nigerian, Ghanaian, and Ugandan Communities? Practical Stove Solutions
A look inside the kitchen in Nigerian, Ghanaian and Ugandan homes suggests policy changes that could make cooking more...
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Challenges and Opportunities to Scaling Up Pay as You Go LPG
There has been a gradual decline in the number of people worldwide who do not have access to clean...
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Seven Recommendations for Disseminating Results to Tech4Dev Research Participants
There is a need for improved ethical standards in reporting the results of human-centered research back to participants. The...
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Evaluating Household Energy Resources in Rural Kenya
Communities in rural Kenya are still heavily dependent on wood fuel and other biomass for their basic energy needs....
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Up Is the Way Forward for Wind Energy
The power of wind is perhaps most vibrantly displayed during a community’s kite festival. From India to China, to...
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Creating Cold: The Chilling Challenge of Off-Grid Refrigeration for Developing Countries
Larry Bentley and F. Andrew Dowdy are trying to solve the problem of refrigeration for off-grid communities in developing...
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The Value of Off-Grid Solar Energy in Refugee Camps
Kenya is a critical hub for refugees who migrate mainly from the Horn of Africa and South Sudan. Kakuma,...
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Kenya Introduces the World’s First LPG Smart Metering Standard
The Kenyan Bureau of Standards launched a new standard for LPG (liquid petroleum gas, or propane) metering that represents...
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