Tag Archives: design techniques

Solar Energy – The Oldest Power On Earth

Years of Power In Just One Day

There is more solar energy striking the earth’s surface in one and a half hours (480 EJ) than worldwide energy consumption in the year from all sources combined (430 EJ).solar-power-cut

“The question I ask myself is: what do I want to achieve? and what are all my options to get the task done? For example: when I buy a drill I am really wanting something to make a hole. Essentially, we need to
Keep the endpoint in focus and the options wide
Green Technology Engineer – Paul Kelly, Research Support at Permaculture Visions.

Wide Spectrum of Solar Opportunities

solar-rays

Solar power is abundant, free and the oldest power source known to humanity. The Sun beams a broad variety of energy waves to us.  For thousands of years humanity has used the heat, light and UV for our daily tasks.  We are enjoying an explosion of research and development as we near peak pollution and warming targets.  Along with the rise in Solar technology a number of female engineers are leading research and many mature women are able to contribute to installation and maintenance.

Boston Herald 1948 re: Dover Sun House invented by female engineer Maria Telkes.

Developing Technologies Include:

www.oorja.in

diagram: www.oorja.in
Different Solar hot water systems – bathroom water and room heating

What is the Environmental Cost of Solar Panels?

To calculate the full cost of any gadget we can do a whole of life analysis. This works out the energy cost from the time we dig the materials up to the time we dispose or recycle the materials. Research shows that a solar panels generate more energy that it took to create and many panels are lasting much longer than originally expected.

With recent developments including organic solar cells, the environmental cost is coming down. Durability and effeciency is constantly rising.

Can I Use Solar Energy Without Buying More Stuff?

Some great passive solar options include:

sustainability workshop
  • attach a conservatory or Greenhouse (made with recycled windows) to the sun-side of your home to create warm air. the trick is to keep it small to reduce the cooling air movement.
  • place mirrors in the garden to reflect light into the home. You can make sculptures out of recycled stainless steel instead of glass.
  • create a solar oven made out of reclaimed picture frames and a thickwalled box.
  • make your own light-shelves, install a waterbottle light in a dark shed
  • experiment with drying food
  • incorporate simple heat banks [like Trombe walls] into your home and office
  • hang herbs to dry in your kitchen or a simple solar dryer
  • hang your clothes to dry
  • if you live in a cold climate – build a cozy outdoor nook in the sunny corner of a tiny greenhouse. Incorporate lots of thermal mass (ie. mud-brick benches and pillars) and you can sunbathe in it on sunny days in winter.  Install a shower with a rocketstove water heater in another corner and you could spend most of your winters daytime happily in there as do many on Carraig Dulra permaculture farm in Ireland!

Here is a great list of DIY projects – Enjoy!

Learn how to integrate Solar into a Permaculture Lifestyle in a Permaculture Design Course with us Online.

Or immerse yourself in a full time two-week Permaculture design class this June at Permaculture Sydney with world-class teachers.

 

Freedom From Obsession

Who wouldn’t want freedom from economic slavery? What would a world of economic honesty look like? Many of us sing: “I OWE, I OWE IT’Schook-on-computer OF TO WORK I GO”. In reply to this mournful choir you may hear voices offering hopeful refrains. Ted Trainer urges us to explore simple living. His is an alternative to the obsessive consumer slavery.

Here’s the good news! It costs nothing to aim for lower expenditure. There is no risk of failure in our quest for freedom.  Challenging the economics of global consumption can benefit us in surprising ways.  We can stop to smell the roses, enrich our social interactions, question what we really need and reduce our waste.  Some of us will develop creative, productive habits. Others might explore green technologies. We can all build lifestyles that work toward physical and mental health and a healthier, more peaceful Earth.  “What people must see is that ecologically sane, socially responsible living is good living; that simplicity makes for an existence that is free.” – Theodore Roszak

Playful productivity

Dr Ted Trainer is a visiting Fellow chicken-diggingat the University of NSW. He invites us to go one step further than the noble pursuit for freedom from economic slavery. He suggest we turn work into fun.  Much of Ted’s work is invisible.  He explores the intricacies of social connections and aims to find ways to support inventive and creative thinkers.

On his alternative lifestyle education site at Pig-face Point, Sydney, Ted has a playful approach to food production. He shifts the focus from a sense of work to a sense of exploration and creation.

Ted says “Work doesn’t feel like work when you’re having fun”.   Part of his site was designed for fun (bridges, arches, islands, caves, etc.) and other parts have purpose (dams, rammed earth shed, cob oven, and home-made furniture from found branches.  He uses his site as a model to show people how to create an interconnected, well-resourced and equipped ‘village’ or housing complex.  Here is one of his students 3D models where we can see retrofits of whole suburbs to better connect the community, reduce waste and increase local production.demonstration model before & after peak oil

Creative adaptation

Ted is like a happy nutty professor escaped from the lab!   He has a lot of energy experiments (tidal energy, water wheels, methane gas, composting toilets, etc.) For years I had believed someone else that said that a methane converter couldn’t work in our cooler climate. Now I know that to be untrue.  Simple bio-gas chambers off composting toilets can work in warm-temperate zones.  Ted had one working off his toilet. If Ted, hadn’t bravely tried this, I wouldn’t have seen it for my eyes. He also had some low-tech stuff which demonstrated in a fun way, like a simple hose coiled to pump water as you turn it.

Essentially his experiments are not just about the individual successes or failures.  His efforts show that is worth trying new things and not just believing other people’s assertions. Ted has an inspiring attitude.  Some of Ted’s writings are available online at social sciences at University of New South Wales and at the simplicity institute.

This Video is a Ted Trainer Interview on ‘The Simpler Way’

Permaculture Zones

Permaculture Zoning in a bag
Permaculture Design Technique called Zoning, can be practiced on a wide range of scales as diverse from Farms to kitchen, to bags.

Zoning is a Permaculture design technique where we put the elements or items of a design in areas according to need. The needs of the item and our use of it. For instance, we need tea herbs, so we plant them in pots on the kitchen window sill, (zone 0) some more near our doorstep (Zone 1) and other types of mint that love a lot of space, can serve other purposes such as suppressing weeds and only need occasional attention (such as mint) further away, perhaps in Zone 3.  Permaculture Techniques such as Zoning are scale-able.  The design technique called Zoning can be applied on large farms, city apartments, urban homes,  kitchen design,  and even in the design or re-design of a little bag. (you can redesign a bag by inserting pockets, wallets or compartments. This is similar to how we re-design a property by using fencing for the zones).

You can also view here a traditional view of permaculture zoning for a farm.