Posts Tagged ‘ alternative energy ’

Wind power has a cost… in human life

Feb 29th, 2016 | By

This is the next chapter of our series on energy production. We take a look at wind power, it’s history, application and challenges.

The first time wind power was put to use was in the sails of boats and for more than two millennia wind-powered machines have been a cheap source of power for food production and moving water. It was widely available, was not confined to the banks of fast-flowing streams, and required no fuel. The Netherlands used wind-powered pumps to push back the sea and wind pumps provided water for livestock and steam engines for over a century.…



Three grids, two not ready for alternative power

Dec 31st, 2015 | By

In our first two posts, we talked about how our reliance on turbine technology and carbon-fueled generation is not going to be going away anytime soon, even though it is inefficient. Our next few posts will be looking at the problem of power distribution.

The growth of alternative energy technology has fueled a movement toward distributed generation over grid distribution, which is what we more commonly employ.  Grid power in the US comes mostly in direct current (DC) generation, resulting from Thomas Edison winning the debate over the benefits of DC power offer Nikola Tesla’s alternating current (AC). We …



Turbines are foundational to electrical power generation

Nov 30th, 2015 | By

By Lou Covey
Editorial Director

This is our second part on our series on the weaknesses of alternative power. In this installment, we look at the core of our generation technology, the turbine.

Entering into an evaluation of turbine technology we need to understand how important the technology is to production of electricity. What is going on in California is valuable to that understanding.

California Gov. Jerry Brown signs bill to combat climate change by increasing the state's renewable electricity use to 50 percent and doubling energy efficiency in existing buildings by 2030 at a ceremony Wednesday, Oct. 7, 2015. (AP Photo/Damian Dovarganes)

California Gov. Jerry Brown signs bill to combat climate change by increasing the state’s renewable electricity use to 50 percent and doubling energy efficiency in existing buildings by 2030 at a ceremony Wednesday, Oct. 7, 2015.



Is alternative energy really an alternative?

Nov 2nd, 2015 | By

Alternative energy is a huge industry generating and spending money at breathtaking speed. Governments have invested trillions of dollars in building out the industry infrastructure and thousands of private citizens have invested billions in private applications. And yet two-thirds of our electrical energy is generated by fossil-fuel burning technology, just as it was 20 years ago. With all the infrastructure established in the past two decades, the world’s demand for energy has outstripped our ability to meet it with alternative power.

1200x-1It’s time we admitted that alternative power is not an alternative. It is only a supplement. Once we admit …



Energy Storage takes center stage at Intersolar

Jul 15th, 2015 | By

By Lou Covey, editorial director

The electrical energy storage industry continued to grow in credibility this week at the Intersolar 2015 conference with a co-located show in Moscone West. However, as a possible indicator that it is still a very small market, the Intersolar folks put the show name all in lowercase (ees).

The sector is set to see the installed base grow 250 percent by the end of 2015, year to year, according to GTM research , but according to other reports, that represents a total investment of $2.6 billion world wide. As a comparison, Solar energy installations represent