Off grid power

There is now solar powered electricity at pointReturn and I thought it would be useful to set out how I think about power and energy and what was the process by which I finally selected what I did.

The energy needs of a self-sufficient campus must be met from a basket of sources, each of which is ideal for one area of use- water pumping, lighting, power tools, farm work, cooking, electronics, and transportation. The broad plan for pointReturn, to be realised over the coming years is as follows:

  1. Water pumping: windmill, solar electric
  2. Lighting: solar electric
  3. Power tools: premium grade solar electricity
  4. Electronics: premium grade solar electricity
  5. Cooking: firewood, biogas
  6. Farm work: animal, tree oils based biofuel
  7. Transportation: electric and tree oils based biofuel

The above list of energy needs and sources is in the order they are likely to be realised, and as I write the list has been realised up to step 4. The list is also meant to encourage finer thinking about our energy needs. Not all needs require electricity; of them that do, not all need premium grade electricity.

At the risk of lecturing the technically adept reader, let me go through this quick primer. Wind and solar chargers store the power they generate in batteries. It is in the form of direct current or DC. DC is good enough for lighting, heating and some water pumps

3 thoughts on “Off grid power

  1. I am an ardent fan of your site and got extremely benefited by the wonderful articles you have posted. on solar power and lighting we have some capability. when it is possible, please visit we can offer very economical solutions for lighting. we can even work as a goodwill gesture for your pointreturn Ranga

  2. Well, both name of the system integrator [Aurore] and the cost [Rs.90,000] are mentioned in the article along with a clickable link to Aurore. If you are in Karnataka however, I suggest you check out Selco []

  3. Hi,

    I am originally from Coorg, Karnataka and this whole Solar electrification concept has got me excited. Please could you let me know the cost of the entire system (1 to 5 ). Also is there a one stop shop where I could buy all the above mentioned components


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