Renewable Energy

The curious return of coaldung fuelballs

by

While in the hills of western India last week I saw something I haven’t seen since my schooldays. The something is old-fashioned fuel balls. You can hold one of these lightweight balls in your hand, for they are around 8-9 cm in diameter, their colour a slatey grey flecked with brown. You only rarely see them being sold in the small provision shops in these villages, for the fuel balls are made at home. They require two ingredients: cow dung and coal dust.

China o los Estados Unidos: ¿Cuál será la nación que mantenga liderazgo?

by

Qué tonto. Yo habia pensado que los líderes del mundo querrian evitar la caída de sus naciones. Seguro que trabajan duro para evitar la caída del sistema de finanza, del sistema alimenticio, del sistema social, ambiental, y el principio de una miseria abrumadora, verdad? Pero no, eso no es lo que demuestra la evidencia. Me inclino a pensar que el objetivo de los líderes mundiales, no es de salvar a sus naciones de la caída, sino, sencillamente ser el último en caer para poder devorar a los que cayeron antes.

Improving the Performance of Solar Thermal Electrical Power

by

Solar thermal is a way of harnessing the largest source of energy available to us, so in this post I’ll have a look at the upswing in interest in the use of this technology for electricity generation in recent years and look at some of the approaches being pursued to make it economically competitive with coal fired power generation.

Monbiot vs. Leggett duking it out over solar panels and feed-in tariffs – Mar 9

by

-Are we really going to let ourselves be duped into this solar panel rip-off?
-Solar panels are not fashion accessories
-There is no ‘green treachery’ in questioning this solar panel rip-off
I accept George Monbiot’s £100 solar PV bet

Recalcitrant Carbon

by

KMO welcomes Albert K. Bates back to the program to talk about the themes of his forthcoming book, The Biochar Solution. Could a form of homebrewed carbon sequestration provide a stopgap measure that could buy us time to implement effective atmospheric remediation? Should biochar be considered a form of geo-engineering? How do we prevent carbon credits from becoming the new credit default swaps? All this and music by Zarathrutra.

ODAC Newsletter – Mar 5

by

As Iraqi’s prepare to go to the polls on Sunday the country has been subjected to a month of increased violence including a string of blasts in Baghdad on Thursday targeting early voters which killed at least 14 people. The election, which will decide the next chapter of Iraq’s future, is being keenly watched by the oil industry…

An Exergy Crisis

by

One of the least understood dimensions of the crisis of industrial society is the role of energy concentration, rather than the simple quantity of energy, in making the modern world possible. Renewable energy sources have much lower concentrations than fossil fuels, and that distinction can have critical impacts on what can and can’t be done with them — a lesson easily learnt from one of the few really mature renewable energy technologies we have at present.