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Many of us want to make sure that we are the most efficient we can be in how we use the resources we consume. One concern that has come up in our email inbox lately is all the power that is consumed by adding so many new home theater gadgets. We're using bigger TVs than ever before, more surround sound processors are in use, often people will add a game system like and XBox360 or PS3 and still have a DVD player or a Blu-ray player along with it. Of course you have to have a DVR, and there's the whole HTPC angle; it just keeps going. With all this technology proliferation, how do we keep our electricity usage in check, if for no other reason than we want to keep our monthly bills in a reasonable range? Options for an Energy Efficient Home Theater In the US, the government created the Energy Star program. It certifies electronics that meet a minimum level of energy efficiency. From the Energy Star website: "ENERGY STAR is a joint program of the U.S. Environmental Protection Agency and the U.S. Department of Energy helping us all save money and protect the environment through energy efficient products and practices. Results are already adding up. Americans, with the help of ENERGY STAR, saved enough energy in 2007 alone to avoid greenhouse gas emissions equivalent to those from 27 million cars - all while saving $16 billion on their utility bills." So what would it take to put together a complete, Energy Star approved, home theater? Here's a look: Television options: There are 442 big screen televisions listed at the Energy Star website, ranging in size from 37" to 70". For example, you can get a Sharp 46" LCD, a Hitachi 50" plasma, a JVC 70" HD-ILA, and almost anything and everything in between. Unfortunately with TVs, the Energy Star logo might be misleading. According to an article by Patrick Barry entitled "This is Your TV on Juice", the Energy Star program rates TVs based on how much electricity they consume while turned off. Since the TV spends a majority of its time turned off, this seems like a valid measurement, but according to the article there's a Hitachi 55" plasma that is certified compliant, but it consumed more power than any other set in a 20 TV shootout conducted by CNET, a whopping 434 watts. But turn it off and it disappears from the (power) grid. DVD options: There's about 100 products listed in the DVD section, including several upconverting DVD players from Philips and a Pioneer Blu-ray player. Shopping around you can find an upconverting player for as little as $59.99. The Pioneer Blu-ray, model BDP-95FD, is a great device. The marketing quote is that it "doesn't compromise a thing when it comes to high-definition picture and audio." Although we haven't used it, we have enough experience with Pioneer to know that this is probably a true statement. However, with a suggested retail price of $999 US, you may not be sacrificing any audio or video quality, but you might not be able to buy groceries for a few months. Being environmentally conscious a good thing, but it will take quite a while to recoup that kind of investment in your monthly electricity bill. Receiver options: Energy Star lists 23 receivers on the website, including a handful of options from Panasonic, Pioneer and RCA. But doing a little more research, we found that the Onkyo TX-SR705 is actually quite energy efficient. While not certified compliant, it is a great option for those who want the best of both worlds. The step up from our recent fave the Onkyo TX-SR605, the 705 is quite efficient and actually consumes less power than the 605. It supports HDMI 1.3 with built-in decoding for Dolby TrueHD and DTS-HD Master Audio. It has Faroudja processing and HDMI video upconversion, and you can find it online for $595 (Buy now). So while it isn't officially Energy Star, it's certainly worth looking at. Conclusion: It's probably more than just a "noble" idea to want to conserve energy, and it goes deeper than just wanting to save money on your bills. We applaud the Energy Star concept and hope that more manufacturers will embrace it in the future. It sure makes it convenient for a consumer to simply look for that special logo and know that they're getting a certified product. But as we found in our research, it can be a bit limiting in designing your home theater around that logo and you may need to do a little research on your own. But with some digging and due diligence you can put together a home theater that not only rocks, but lets you do your part as well.