Showing posts with label grid failure. Show all posts
Showing posts with label grid failure. Show all posts

Friday, January 21, 2011

Resilience in electricity when the power grid fails

During the recent floods many were without power for 3 or more days. Some are still without. Here are a few ideas you might like to implement depending on your budget.

Five levels of security

1/ Recharge your mobile: In-Car charger <$10.00 or small solar powered charger $40.00 http://www.multipoweredproducts.com.au/products/HYminiSolar-%252d-HYminiS.html

2/ Run a laptop from your car: Cigarette lighter inverter ~$80.00 http://www.excelsiorpower.com.au/prod175.htm

3/ Run a small 12 volt camping fridge: Solar panel (120w) http://stores.ebay.com.au/Bit-Deals, regulator and battery $800.00

4/ Keep your household fridge going: Solar array, regulator, battery bank, inverter

Solar panels (500w) $1500.00 http://www.lowenergydevelopments.com.au/products

Regulator (40 amp) $200.00 (available on ebay)

Battery bank (200 amp hour) $600.00 http://www.excelsiorpower.com.au/prod233.htm

800w pure sine wave inverter $200.00 http://stores.ebay.com.au/POWER-JACK-SHOPPING-CENTER

TOTAL COST $2,500.00

5/ Keep your house running with existing grid- solar system by adding a mini grid.

Add a generator change over switch $200.00

Extra solar panels (200w) $600.00 http://www.lowenergydevelopments.com.au/products

Battery bank (600 amp hour) $1,500.00

Regulator (20 amp) $100.00

800w pure sine wave inverter $200.00

TOTAL COST $2,600.00

Some alternatives:

1/ Buy a generator and use petrol or diesel which may not be available (use a changeover switch and connect up generator to house)

2/ Trade in your existing grid-interactive inverter for a Selectronics hybrid inverter http://www.sppro.com.au/ and battery bank for around $9-10k.