Facing limits to sun-powered renewable energy. Latest in a series.
A picture is worth a thousand words. This graph compares the price history of solar energy to conventional energy sources. The comparison is striking. This is what a disruptive technology looks like. While conventional energy prices remained pretty flat in inflation adjusted terms, the cost of …
Hawaii generates more of its power from the sun than any other state. Here’s what the rest of us can learn from the obstacles that came up along the way and and what's being done to overcome them.
In-depth interview with Nobel Laureate Robert B. Laughlin on his book "Powering the Future: How We Will Eventually Solve the Energy Crisis and Fuel the Civilization of Tomorrow." Dr. Rose M. Cory's new science on positive feedback loop discovered in the melting Arctic.
All across Europe feed-in tariffs and subsidies for solar power are being cut or even scrapped. In Portugal and Spain, these actions are justified with the debt crisis, even though they expand these states' trade deficit. This month the Spanish government took a decisive move to scare investors …
•Wind power is now cheaper than coal in some countries •Global solar capacity breaks through 100GW barrier •Media campaign against windfarms funded by anonymous conservatives •EU should seek 100 percent green energy by 2050: WWF •Weatherwatch: Wind turbines impact on …
-Designing the grid for renewables -Liquid Air: The Birth of the Nitrogen Economy -Danes set the pace on green energy vision -California Governor Jerry Brown green lights renewable energy push -Polls: Voters back clean energy, climate policies
Oil prices fell dramatically this week to $107/barrel for Brent, on worsening economic news from China and Europe, and assurances from Saudi Arabia that it is ready to pump more oil to keep prices down. The speed of the fall on Monday however is something of a mystery and has led to an …
A short while back, I described my standalone (off-grid) urban photovoltaic (PV) energy system. At the time, I promised a follow-up piece evaluating the realized efficiency of the system. What was I thinking? The resulting analysis is a lot of work! But it was good for me, and hopefully it will …
A short while back, I described my standalone (off-grid) urban photovoltaic (PV) energy system. At the time, I promised a follow-up piece evaluating the realized efficiency of the system. What was I thinking? The resulting analysis is a lot of work! But it was good for me, and hopefully it will …
