Do you need more space for a growing family? One of the tradeoffs to buying a larger home is having to pay more in utility costs for heating, cooling and other appliance use. However, advances in energy efficiency mean that you can offset some of that increased consumption. That means you save money and worry less about your energy use, even if you just bought the mansion you always dreamed of.

Bigger Houses and Bigger Households

We like our homes bigger. The average American home size has grown  20 percent since 1980, and we've been filling those homes with ever more electricity-dependent devices, like televisions, computers and household appliances. Fortunately, over 70 percent of the growth in household and building size has been offset by efficiency improvements, according to the Energy Information Administration.

Total energy use by U.S. households inched up each year between 1980 and 2009, the EIA Residential Energy Consumption Survey reports. That is because of various reasons, including more households, larger households and a trend toward bigger houses. However, consumption per square foot actually dropped by 37 percent during that time period -- and if it hadn't, the total increase would have been considerably higher.

Residential energy accounted for 21 percent of total U.S. consumption in 2012 so the cumulative savings are significant. The numbers are astronomical -- residential usage increased from 9.3 quadrillion BTUs (British thermal units) in 1980 to 10.2 quadrillion by 2012 -- and without additional efficiency measures the total would have increased by another 3.6 quadrillion BTUs.

Multifaceted Efficiency Efforts

There are numerous factors driving the efficiency revolution: Stricter consumer appliance standards, local building codes geared toward efficiency and federal tax credits, in addition to awareness outreach programs and labeling efforts like the federal Energy Star program have all contributed to the reduction in consumption per square foot.

If you want to save the most energy, smaller is always better when it comes to houses. There's less space to heat and less to cool. However, if you need the extra space, take heart knowing that technological and behavioral improvements mean that a large house doesn't gobble up nearly as much energy as you might expect.

For more ideas on how to decrease your consumption, ask a home services expert to evaluate your home. He or she can help you find new ways to save no matter the size of your home.

Call local Mister Sparky® for more energy efficiency tips and advice. We're always here to help!

LED streetlights are great for the environment. They consume much less energy than standard high-intensity discharge (LED streetlights. What some cities have failed to consider, however, is that while LED streetlights are capable of emitting different colors of light, not every color should be used in public outdoor spaces. Bright blue-rich white light can cause some issues for residents, local wildlife, and night sky visibility. When it comes to streetlights, the warmer the color/correlated color temperature (

studies showing that it can even aid in IBS as well as migraine and cancer prevention.

Throughout the day, light changes from a warm white color at dawn to natural white then to a cool white in the afternoon, back to natural white, and eventually to an ultra warm white color at sunset. Our bodies are used to this cycle of light. Artificial lights that deviate from the natural lighting cycle can throw off our circadian rhythms. The National Institute of General Medical Sciences states that, “Circadian rhythms are physical, mental and behavioral changes that follow a roughly 24-hour cycle, responding primarily to light and darkness in an organism’s environment.”

According to healthybuildingscience.com “. . . different types of light trigger different physiological effects. Blue/white light, akin to a bright midday light, suppresses melatonin and increases serotonin, this light is great for activity. Conversely red/orange light triggers melatonin in preparation for going to sleep. If everything is in balance, the body will generate dopamine, serotonin, cortisol and melatonin in the right quantities at the right time of day.”

On their website, the IDA cites important information from a report, this happens “. . . because blue light scatters more within the human eye.”  While it’s not directly causing harm to someone’s health, glare decreases driver safety and can lead to traffic accidents.               

At night, blue light used outdoors can also wreak havoc on ecology. Introducing light with a CCT that’s close to daylight essentially changes the daily cycle that plants and animals are used to. They depend on this cycle of light and dark for hunting, reproduction, sleeping, migrating, and protection. Nocturnal animals have suffered greatly from cool white light at night; the IDA

Because blue light has a larger reach, cool white LED lights used outdoors at night can contribute to light pollution, or brightening of the sky. This decreases the visibility of stars and can have a negative effect on astronomical research. If cool white LED lights are used, they should be shielded or aimed directly downward to prevent light pollution.

Warm white LED street lights and parking lot lights—with a CCT of 3000K or less—are a much better option for public outdoor areas. They emit a much smaller portion of blue light—which is unnoticeable to the eye—and are currently the best options available for street lighting.

Click the photo below to see our line of warm white LED streetlights.