Any standalone off-grid solar system needs a Rechargeable Battery. Nearly everyone I can think of, is used to the idea of emergency lights and cell phones. In fact, battery life and charging time are two points of great interest in cell phones. Whether the source of power is the electricity grid or sunlight, we use [...]
Trends: Industry predictions are that human society will move away from incandescent light bulbs to LED lamps in about a decade or two. People like smaller electricity bills. Environmentalists want less energy wastage as heat. Haitz's Law states that "every decade, the cost per lumen (unit of useful light emitted) falls by a factor of 10, and the [...]
The first step that the Energy Conscious people have to take, is to assess the effectiveness of energy saving devices and materials. What is embodied Energy? Wikipedia says: "Embodied Energy is the sum of all the energy required to produce any goods or services, considered as if that energy was incorporated or 'embodied' in the product itself." [...]
Thermodynamics teaches us that energy is neither created nor destroyed, but it can be converted from one form to another. It also teaches us that whenever there is an energy conversion some energy is lost to the environment as heat. This increases the disorder or entropy in our universe. Life forms are highly ordered, low [...]
Today we had a great opportunity to speak with a group of Senior Citizens from Dignity Foundation, Vidyaranyapura, Bangalore, and demonstrate to them Composting at Home, Energy Conservation & Solar Power. Many of them were very happy to have found a sustainable Lifestyle store located very close to their homes. I found it be a [...]
Energy from the sun is our Solar Capital. Energy we take from the earth (Oil, coal, wind, water etc...) we call the Earth Capital. If we wish to sustain the earth capital, we could try and use more of the solar Capital. The crisis of unsustainability refers to the problems caused by depletion of earth capital. [...]
On the one hand we don't like diesel and petrol price hikes. We say that it will cripple our economy. On the other, we expect all the petroleum to be used up in a few decades. There is not much point in building an economy based on depleting fossil fuels. What will we do if [...]
There are 7 billion+ humans on earth to feed and meet the energy requirements of. This number is growing exponentially. It means that we are a successful species. Every successful species has altered the environment to such an unfavourable level that the species became extinct. If humans want to survive for a long time, we [...]
