A motherboard is the central printed circuit board (PCB) in some complex electronic systems, such as modern personal computers. The motherboard is sometimes alternatively known as the mainboard, system board, or, on Apple computers, the logic board. It is also sometimes casually shortened to mobo.

Balasana, or Child’s pose (Sanskrit: बालसन), is a Hatha yoga posture. The name comes from the Sanskrit words bala (child) and asana (pose). Balasana is also known as Child’s Resting Pose. Balasana is a simple relaxation position in yoga. The pose can become rather active through breath. It is usually practiced before and after Sirsasana/Headstand.

THE SMART GRID

Utilities are crafting new technologies to make the power grid “ intelligent”- able to automatically conserve energy.

1. SOLAR PANELS AND WINDMILLS mounted on houses generate power. If a family is generating a surplus, they can feed it back to the utility and get paid as microgenerators.

2. “SMART APPLIANCES” monitor how much electricity they’re using and shut down when power is too expensive.

3. REMOTE CONTROL consumers can permit utilities To control their non-essential appliances – like pool pumps – turning them on and off to fine-tune the grid for maximum efficiency.

4. PLUG-IN HYBRID CARS refuel using clean Electricity generated locally.

5. Locally-generated power avoids the 15 percent power-loss that occurs when you send electricity over long-distance power lines. “superconducting” power lines route extra electricity from out-of-state utilities when demand spikes.

6. WIRELESS CHIPS let individual houses communicate with power Utilities – swapping on-the-fly information about the current price and usage of electricity.

7. WEB AND MOBILE-PHONE INTERFACES allow consumers to see how much Power their appliances are using when they’re not at home – and even to turn them on or off remotely to reduce costs.

8. ENERGY STORAGE. When solar panels produce excess Energy, it can be stored in batteries so houses can use clean energy at night when the sun isn’t shining.
http://www.nytimes.com/imagepages/2008/04/20/magazine/20invent-graphic.ready.html

(Synchronous Inverters)

“Grid-tie inverters are used in solar energy systems that are integrated with the grid. Like all inverters, it converts DC power to AC, the kind you use to power everything from electric shavers to televisions.

A synchronous inverter takes the solar/wind/hyrdo electricity collected by your solar panel array (or other renewable source)  and applies it to the distribution panel in your home. The power may then be used by loads within your home or it may flow out to the utility grid. When there is no solar energy available (eg. at night, or during cloudy periods) the utility seamlessly provides power to supply the loads in your home. The inverter has to be matched with the wattage output of your solar panels.”

Gothic, CO Summer 07