Interesting Approach to Hydrokinetics

First, let’s start with the most obvious: this doesn’t apply to water that is flowing because it was pushed along by a pump. This device slows down the velocity of the water, and would therefore cause the pump to work harder to compensate for it. So we need to confine ourselves to gravity-fed pipes. (more…)


There is no doubt that the ultra-low price of gasoline and diesel has made it tough for electric transportation, and, to a degree, renewable energy. Yet, remarkably, the world is experiencing a considerable boom in the clean energy space.
Civil engineering is a career that involves creating, improving and protecting the environment in which we live. Civil engineers are tasked with planning, designing and overseeing the maintenance and construction of building facilities and structures like roads, bridges, airports, railways, harbors, dams, power plants, irrigation projects and wastewater systems.
One day last month, Germany generated 90% of its electricity from renewable resources. Though this is a rarity (their average in 2015 was 33%, up from 28% in 2014), the world stands in awe of what these folks have done in terms of innovation in the energy sector.
In many cases, the challenges of sustainability are made more difficult by various vicious cycles, where certain bad phenomena feed on themselves and thus enter a pattern of ever-increasing acceleration. A good example of this effect is 
A reader sent me this
Here’s the president of
Of course, we at 2GreenEnergy view Obama’s tenure as president through the lens of