Archive for the 'Finance & Payback' Category

Jan 11 2008

Making cents of it all: Finding the right incentive

DsireWe’ve all heard that buying energy efficient appliances and installing renewable energy systems can keep utility bills from soaring out of control. There are a growing number of rebate programs, tax incentives, and grants out there further encouraging us to buy that Energy Star refrigerator or install a geothermal system. So, how do you track it all down?

Thankfully, the North Carolina Solar Center and Interstate Renewable Council regularly update and maintain the Database of State Incentives for Renewables and Efficiency (www.dsireusa.org). With this easy to use tool, you don’t have to scour through numerous lackluster government websites full of environmental jargon.

DSIRE covers renewable energy (think solar and wind power) and energy efficiency (everything from ceiling fans to geothermal heat pumps). For both categories, there are financial incentives including rebates, property tax incentives, and grant programs offered by local, state, federal, and non-profit entities.

The easiest method of searching is to click “Search By” and select “Eligible Sector.” Select “Residential” from the drop down and, in the results, scroll to your state for a list of relevant incentives.

Now, its not QUITE as simple as point and click—you do have to read some of the details—but the DSIRE site does an adequate job of translating much of the legal language in the government legislation into plain English. It also lists contact info for each incentive should you need more information.

For all tax-related incentives, I’d recommend keeping your accountant in on the loop so they can verify your eligibility and ensure that your returns are properly prepared.

While many installers of various renewable systems usually incorporate incentives into their pricing, you should use DSIRE to educate yourself and make sure you’re pursuing all of the monies available to you.

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Dec 11 2007

Giving the Grid a Break

powerfailure.jpgAs our appliances get bigger and more powerful, the electrical grid remains the same. And since replacing the grid is more than a weekend project, it is time to look at some other solutions.

Sensing Overload

Scientists from the Pacific Northwest National Laboratory in Richland, Washington have found that giving the grid a breather when it starts to go into overload may decrease the chances of grid failure. Specifically, they tested appliances with computer chips that are able to sense a grid overload. The appliance will then adjust so as to reduce the risk of grid failure.

So, your dryer’s heating element might shut down, but the clothes keep tumbling or your refrigerator’s compressor may temporarily switch off, but the light will still turn on when you open the door. These minimal precautions can give the grid a much needed break and help avoid a complete failure.

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Nov 15 2007

What’s Next In Windows?

windows1.jpgWindows are important to the efficiency of our homes and often account for a significant portion of our heating and cooling bills. New technologies are beginning to address common issues, such as solar heat gain and insulation, so that we can expect more from our windows in the future.

What is a SHGC?

Windows allow sunlight into our homes. Sunlight is composed of short and long wavelengths. The short wavelengths represent the visible light that makes our homes bright and sunny. The long wavelengths produce the heat we feel from that sunlight. This heat is also known as solar radiation.

The amount of solar radiation transmitted through a window is represented by the Solar Heat Gain Coefficient (SHGC), a number between 0 and 1. A window with a high SHGC allows a lot of solar radiation into your home. The heat provided can be welcome in colder climates, but provides unnecessary heat in warmer climates. A window with a low SHGC blocks solar radiation, which reduces the need for air-conditioning in summer but is not ideal for cold climates.

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Nov 15 2007

How Does LEED’s Ranking System Work?

leedcertification.jpg

LEED has made quite an impact in the green building world and more buildings are beginning to receive recognition for their designs. But how does LEED determine which buildings get to don the highly recognized plaque? They use a consensus-based point system that determines a building’s level of sustainability and ranks it accordingly.

LEED’s ranking system may not be an exact measure of sustainability, but it provides the structure necessary to evaluate the construction and operation of a building and its environmental impacts. The ranking system is built from six categories that are used to evaluate a design. Each category has a maximum amount of points that can be earned. Below is a description of these categories:
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Nov 08 2007

On Grid or Off Grid, Which is Better?

gridtied.jpgPart of building a home with renewable energy systems, such as solar panels, is deciding whether or not it should be connected to the electrical grid. There are numerous considerations — namely practical, economic, and environmental –involved in making your decision.

However, this choice can be difficult without a good understanding of what the terms grid-tied and off-grid actually mean. A grid-tied home is connected to power lines which transmit electricity to the home, mainly from power plants, yet can also produce power on-site using renewable energy systems. An off-grid home is not connected to power lines and, therefore, it relies solely on renewable energy systems to produce electricity and storage systems such as batteries to mediate the supply.

As we examine the practical implementation, cost, and environmental impact of each, we’ll see how being connected to the electrical grid is typically more beneficial than being completely detached from the predictable source of electricity and storage it provides.

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Nov 02 2007

Impact Resistant Windows

shutters1.JPGNew products such as, bamboo flooring or structural insulated panels are making it possible to build healthier, greener homes.

Impact resistant windows are just one of the advances that can make a significant difference in protecting our homes.

Leaving your home vulnerable to hurricane force winds and other damaging conditions can affect the health and life span of your home.

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Oct 19 2007

Craftsman Style Homes Going Green.

p_urbancraft_1-blog.jpgGreen homes can look modern and sleek, but what if you want a more traditional looking home? Like a craftsmen or a cape. Holistic Homes is building four green and energy efficient craftsman style homes in Woodstown, New Jersey that are big on style and luxury and small on cost and energy.

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