greenspree.ca at The Sietch

How much (useful) energy can you derive from rain falling from your roof? How can you best capture wind energy with many small wind turbines? Are there other options for using solar energy besides PV’s and solar hot water heaters? What are some other small options anyone could use that have cumulative benefits and are easy and cheap to install?

It’s a thought I had the other day when considering energy production for our house in the future. While on the road for my job I passed by an off-grid (even though the grid was 100 feet away) 3000+sf home with solar hot water, solar PV panels and a 100′ tall 3 or 5 KW wind turbine. It was massive and made the property seem very out of place next to smallish 1400-1800sf bungalows all around it. I decided that one large scale device to provide all or nearly all of my energy needs was not a route I wanted to take. I started doing mental calculations and plans to incorporate many small unobtrusive energy production devices into our house and land. We have a hectare so we have some room to play with and it is a former farm field so can plan around future trees, wind rows, etc…

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The First Air Car to Hit the Market – Associated Content

While I am sure there will be questions about this technology, and the safety behind it, it sure does sound promising! If you can couple this car with green, clean, home energy generation (wind, solar, micro-hydro or perhaps even a small bio-diesel generator!) it would truly be emission free driving! And ranges of 500 miles and 68mph make it a true contender against internal combustion engined vehicles. Prices on average of $8000 don’t hurt either.

It also does away with the need for heavy, toxic and hard to dispose of batteries that are the weak spot on otherwise promising electric vehicles.

I am excited to see what the future brings for these affordable green cars!

I came across this discussion in the comments section of Peak Oil Debunked’s post on the chest fridge idea from the famous mtbest article. The gist of the argument, and I have posted the relevant parts of the argument against the chest fridge, was that the orientation of the cooling device would make no difference and that the original author was sacrificing a large amount of food storage. Seeing as the original post and discussion took place two years ago I doubt I will get a response, but have decided to post my thoughts on it here.

My take on the subject is that you can buy two 15cf deep freeze’s for the same price as one side by side refrigerator freezer unit and have one set up to be a fridge and use the other as is. In my research, the standard 25cf fridge/freezer has a 15cf fridge side and 10 cf freezer side. My research also shows that similarly sized chest freezers use less energy than upright refrigerator only models. So you can in fact have more storage and pay less in utility bills for it!

More after the fold.

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What came first? Cheap energy in the form of fossil fuels or ever increasing levels of consumption? And what relationship did they have on each other? I have heard many analysts, politicians, pundits and thinkers throw out the statement that cheap oil has artificially propped up the pace of developement and the rate of consumption in places like America. This may sound reasonable and valid, oil and coal are cheaper in terms of extraction and conversion to usable energy than almost any other source. But does this account for the explosion in technology and material wealth enjoyed by so many since the The Great Depression? Could there be other factors that helped out or were maybe even more of an influence?

John Maynard Keynes was a British economist that developed and advocated what is roughly the same theories used today in modern capitalist countries. In simplist terms, he advocated basing the economy on consumption levels and spending out of depressions. The wikipedia artical on Keynesian economics states:

In Keynes’s theory, macroeconomic trends can overwhelm the micro-level behavior of individuals. Instead of the economic process being based on continuous improvement in potential output, as most classical economists had believed from the late 1700s on, Keynes asserted the importance of aggregate demand for goods as the driving factor of the economy, especially in periods of downturn. From this he argued that government policies could be used to promote demand at a macro level, to fight high unemployment and deflation of the sort seen during the 1930s. This however is contrasted by Supply-side economics. Keynes believed that the government was responsible for helping to pull a country out of a depression. If the government increases its spending, then the citizens are encouraged to spend more because more money is in circulation. People will start to invest more, and the economy will climb back up to normal.

More after fold.

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Ethanol is a red herring, it can reduce net CO2 emmissions but will also require huge amounts of resources to grow, distill and distribute. In order for ethanol to replace gasoline all cars would need to be retooled to be able to run on 100% ethanol (the most currently available pump varieties are a blend with mostly gasoline; E10 or E15) plus to supply the world with enough ethanol to run all internal combustion engines could require more or most of the arable land that is currently available, leaving little or none for food production.

The real emphasis should be on changing how society consumes energy, making our processes more efficient and sustainable and harnessing the free and mostly unused energy the sun throws at us constantly. In fact the real crux of the matter is we need to reinvent the way we travel and move things. We need to reduce the number of vehicles and make the ones we use more efficient. Whether this means switching to biodiesel or hydrogen feul cells, electricity, etc… the most important step is to go on a car diet. Personal transportation should be reduced to next to nothing. Trying to force technology to catch up with our consumption is a batlle we have been steadily losing ground on for the last century and it shows.

More after the fold.

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