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Dear Reader,

The Energy Miser #25 December 22, 2008

The Power Outage Edition

As I write this, I suspect that there are still many in Massachusetts without power. Here in Hudson, we were fortunate and only lost power for 12 hours. My sister and her family on the other hand, in Princeton, were down for a week. Fortunately, other than losing some nice trees and a tool shed, they are safe and sound.

Not surprising, in the past week I've had to answer the question about solar electric systems, "What happens when the power goes out? Will I still have electricity?" The short answer, "No". Read on to learn why.

Mark

Read all past issues of The Energy Miser here.

Almost every electric system (solar or wind) installed by New England Breeze, is a "Grid Tied" system.

Grid tied systems allow you to get power from your renewable energy system, power from the grid, and spin your meter backwards when your home or business does not need the power your renewable energy system is producing.

Unfortunately, this direct connection to the grid means that during a power outage, your system must stop producing power in order to protect the people working to restore power.

This automatic shut-off capability is built into the inverters we install and is an Underwriters Laboratory standard for all grid-tied inverters (warning: boring link, unless you are a techie UL-1741).

Are there ways to trick your system into running during a power outage? Yes. But they are complicated and expensive. And given the amount of time we are without power, it is usually far more cost effective to use a backup generator to run your critical loads during a power outage.
During the Ice storm, one of our more enterprising customers ran a few key appliances with his Prius.

He did this by hooking up a 12-volt off-grid inverter to the Prius's 12-volt battery (the Prius has both high-voltage batteries and the regular 12-volt battery like every other car). Then he plugged his key appliances into the inverter. (click on the image to see the outlets).

The inverter converted the 12-volt DC to household 120-volt AC current and the Prius kept the battery charged. Our customer estimated that he ran for more than three days on about five gallons of gas.

And because the Prius has all the emission controls of a car, our customer's Prius generator is the cleanest running gas generator out there.
There was some confusion from my previous newsletter regarding what's happening with the state's Commonwealth Solar Grants and federal tax credits.

Effective January 1, the grants will go down and the federal tax credits will go up. The base grant will go down $1.10 per watt of installed solar capacity (from $2.25 per watt to $1.15 per watt, On a 5,000 watt solar system, that's $5,500.) The tax credit will increase from a cap of $2,000 to 30% of the system cost.

However, the 2008 grants will be awarded to applicants who's applications get in before the end of the year. The 2009 Tax credits apply to systems that start-up in 2009.

So if you are considering a solar electric system, we have a small window to file your grant application and make you eligible for the 2008 grants. We'll install the system in early 2009 and you will get your tax credit on your 2009 tax filing.

As always, New England Breeze is not an accounting firm. Please check with your tax professional regarding all tax related questions.

Turn down your thermostat, disable your doorbell, reduce waste, use a fan instead of an air conditioner, turn off the lights, switch to compact fluorescent bulbs, put computer gear on a power strip and turn it off at night, unplug unnecessary appliances, ventilate your attic, take shorter showers, walk instead of drive, ride a bike, group your errands, inflate your tires, grow your own food, eat locally-produced food, recycle, use your most efficient vehicle, get a hybrid vehicle, wash your clothes in cold water, buy less packaging, use a clothesline instead of the dryer, drink tap water, print with narrower margins, use both sides of the page, buy less, compost, install a renewable energy system...

Happy Holidays, Stay Warm, and Thanks for Reading The Energy Miser,


Mark Durrenberger
New England Breeze, LLC

phone: 978-567-WIND (9463)