Energy efficient speakers can be purchased from various retailers nowadays. One can try checking at their local electronics like Best Buy, Microcenter, or Radio Shack. Amazon or AudioHolics are also options.
General Electric have energy efficient models that you can purchase for just a fraction more in price.
You can purchase energy efficient windows at Home Depot or Lowe's, and attempt to install them yourself, or you can hire a company that specializes in windows, and they will do this for you.
You need to be sure to purchase an energy star qualified refrigerator like Whirlpool.
Energy efficient refrigerators use 75% less energy than one made in the 1970's. You could save up to $100 a year.
LED lights are so much efficient when compared to other types of lights. They use light emitting diodes which are not only durable but also use up less energy thus reducing on the overall consumption.
EnergyStar is a government backed program to help people find and use the most energy efficient appliances. You can save up to 30% on your energy bill by switching.
There are tools you can purchase at the hardware store to measure the amount of sunlight energy that is entering through your window. Energy less than 2 kilowatts is considered energy efficient. You could also consult a service professional based on the type of windows you have.
You can purchase Markbass speakers online from the Musician's Friend website. Alternatively, you can also purchase these speakers from stores such as Guitar Center.
Energy Star refrigerators are good appliances to purchase. They are about 15% more energy efficient than models that already meet the minimum efficiency requirements.
An energy efficient motor.
You can purchase JBL PA speakers online from the Guitar Center website. Alternatively, you can purchase JBL PA speakers from the Musician's Friend website.
Any dishwasher that is Energy Star Rated is energy efficient.