In This Issue
Subscribe
Receive your own copy of The Energy Miser
Handy Links
 
Dear Reader,

The Energy Miser #29 July 26, 2009

Sorry about the Ark reference, but with the weather we've been having lately, I couldn't resist.

Just before all the rain started, I put in a rain barrel for the garden. In nearly two months, I've used it only twice. Why? All this rain means my vegetables are doing lousy, and they certainly don't need more water.

Recent Solar install, Auburn MA
The most valuable aspect of a solar electric system is the power it produces. That power reduces what you buy from the power company. Even if you don't use the power right away, excess generation runs your meter backwards and you get credits from the power company.

(Pictured above, a recent solar installation in Auburn MA. It has 10 Massachusetts Made Evergreen Solar panels. Click on the image to enlarge.)

In sunny weather, most of our customers produce more power during the day than they use during the day. If their utility offers net metering, they build up credits. At night, when everyone is home, they use up those credits. In most cases, those credits are equal to the full cost of electricity. In some cases, however, they are not. Let me explain...

For National Grid, NStar, Unitil, or Western Mass Electric customers, any electricity your solar system produces, offsets what you buy dollar-for-dollar. However, these power companies do "monthly" net metering. So if you produce more power than you need in a billing cycle, they credit only the generation charges for that excess generation, they do no credit the delivery charge.

The good news is that once the rules dictated by the Green Communities Act are put in place, any excess power you produce will earn full credit (both generation and delivery charge). These new rules should go into place in the next month or two.

If you get your power from a municipal utility the rules are different. See below to learn how.
Damn Yankees
It's Summer theater time again. If you've been reading The Energy Miser for a year or more, you'll recall that last summer I was in the Arts Alliance's River's Edge Players summer production of How To Succeed in Business Without Really Trying. Well the "good" news is, I'm in this year's production of Damn Yankees. The better news is that I convinced my wife to audition and she got a part too. Along with Jocelyne, there are many talented people in the show and we would all love to see you at a performance.

Damn Yankees is a Broadway musical about a Washington Senators fan who makes a pact with the Devil to help his baseball team win the league pennant (older Red Sox fans can relate). The original production of Damn Yankees ran for over 1,000 shows and won several Tony awards.

Would you like to see the show? Download the ticket order form here or order tickets by calling 978-562-1646. Show dates are August 14 and 15, 7:30pm at Hudson High School's air conditioned theater, 69 Brigham Street, Hudson MA 01749.

Help Support the Arts along the Assabet River!
Cool Your Attic, Use Your AC less, Save Electricity
In my previous newsletter, I introduced the Sunrise Solar powered attic fans. These fans are designed to cool your attic so your air conditioner will run less. The fans have a built-in thermostat. They automatically go on when the temperature in the attic reaches 80 degrees F. As your attic cools the fans go off at 60 degrees F.

The fan and installation is $760 (for most homes) and there is a 30% federal tax credit and a 15% state tax credit. These credits reduce the income taxes you pay by about $300.

We offer fans for normal pitched roofs, flat roofs, and gable end walls. We also offer fans with detachable solar panels so the fan can be mounted on any roof and the panel can be aimed south.
Net Metering and Muncipal Utilites
Municipal utilities are not regulated like the large publicly traded utilities and, as such, do not have the same sets of rules to follow. Net metering is one of those areas where there is quite a bit of variation. Here are some specifics:

Concord Light allows net metering and will pay full credit for all kilowatt-hours generated provided the generation is done with a solar electric system. (Of the municipal utilities we've spoken with, their net metering policy is the most generous - it has to do with The Forward Capacity Market, Once I understand it, I'll explain it here.)

Princeton does "monthly" net metering. They pay the the generation charge for excess electricity generated within a month.

Hudson Light And Power does not do net metering. You are paid only the generation charge for power you put into the grid. (That means that excess power you make during the day is worth about 6 cents per kilowatt-hour and when you buy it back at night it costs you about 14 cents per kilowatt-hour!)

Holden does "annual" net metering. They pay the generation charge for excess electricity generated over the course of a year. They currently have written guidelines for systems under 5,000 watts but have not yet written rules for systems larger than 5,000 watts.

If you live in a town with a municipal utility and are thinking about a solar electric system, give us a call and we will happily find out the rules that apply. Also, a number of municipal utilities are joining the Commonwealth Solar program, so you may be eligible for the same grants that National Grid, NStar, Unitil, and Western Mass Electric customers get.

Net metering is not complicated. Once we install your solar array, the power company replaces your main meter with one that measures electricity moving in either direction. From that point on, they handle the numbers.
Living with TED
The Durrenbergers have completed two billing cycles with TED (The Energy Detective) monitoring our electricity usage. TED likes to deliver bad news. But that's good because our household usage of electricity is down a few kilowatt-hours per day. (May was down 89 kWh, 3 per day, June was down 254 (8 kWh/day, but that could be because of cooler weather and less whole-house fan usage too.)

As it turns out, our clothes dryer is the largest energy user in the house. When it is running, it draws as much as 6,000 watts. During a normal drying load, it cycles up and down between a few hundred watts and several thousand watts. Each load uses about 3 kilowatt-hours of electricity (About 40kWh a week!)

Since I know our low usage level (see below), at bedtime, I can tell if something is running that shouldn't be just by looking at TED (shop lights, outside spot lights, garage lights, computers, etc.). And, not surprisingly, I find things left on less and less. Everyone in the family is getting better at turning stuff off!

After everyone is in bed, our usage drops to about 400 watts. What draws power at night? Refrigerator, lots of phantom loads including, 3 portable phone chargers (We used to have 6), five digital clocks in bedrooms, one each in the stove and microwave oven, the cable modem and router (we've had difficulty getting the network to work correctly after powering them down), garage door openers, various cell phone chargers...

Since this 400 watts is on all the time, 24 hours a day, 365 days a year it uses 3,504 kilowatt-hours a year or ~300 kilowatt-hours a month (390 lbs of carbon dioxide per month).

If you are interested in having a TED installed at your home, please give us a call.

Install a solar attic fain, Use rechargeable batteries, Add insulation, 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, 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...

Thanks for Reading The Energy Miser,


Mark Durrenberger
New England Breeze, LLC

phone: 978-567-WIND (9463)
web: http://www.newenglandbreeze.com