Environmental impact of the myRoom system April, 2008

myRoom Outline Manufacture PCB Soldering Normal use Power consumption Recycling/ Disposal April, 2008

myRoom Board Advanced Circuits assures that the production of any unprocessed board meets the RoHS (Directive on the Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment). Manufacture Solder The Solder we used is not lead free; we would have to order a certain board to use lead free solder (melt temperature). Normal use Recycling April, 2008

myRoom Parts Manufacture Vishay states: company is “committed to comply with the environmental laws and regulations” as far as their processes are concerned to not harm the environment Freescale produces RoHS compliant products Sharp -> no info on webpage ID-Innovations -> no info on webpage Manufacture Normal use Recycling April, 2008

myRoom Power consumption Power of our system at most 3.03W Manufacture Power of our system at most 3.03W Assumed it will be running all the time: (A month has on average 720 hours) E = 2.181kWh (on average) Normal use Recycling April, 2008

Estimated hours used per month myRoom Power consumption of myRoom vs. power consumption of household appliances Manufacture Appliance Typical Wattage Estimated hours used per month Estimated monthly kWh TV 200 183 36.6 Light 75 100 7.5 VCR/DVD 21 12 2.5 CD, Radio,… 250 30 15 Fan 400 71 28.4 Sum 946 - 90 Normal use Recycling April, 2008

Estimated kWh saved monthly myRoom Power consumption of myRoom vs. power consumption of household appliances Manufacture Appliance Estimated hours saved Estimated kWh saved monthly TV 30 6 Light 15 1.125 VCR/DVD CD, Radio,… 10 5 Fan 4 Sum - 16.125 Normal use Recycling April, 2008

myRoom Power consumption Manufacture Difference = 2.181kWh – 16.125kWh = -13.944kWh Comment: Even if it might be really different for some people, power consumption really low. Normal use Recycling April, 2008

myRoom Reduce e-waste Manufacture Make the lifetime of the system as long as possible Write a note in the User Manual that encourages the user to recycle the system when not in use any more (also label the packaging) Sell the product a little more expansive and give money to the recycle company Standardize the product (updates possible) Manufacture Normal use Recycling April, 2008

myRoom References Cornhusker, “Operationg Costs of Household Appliances,” [Online Document], 2002, [accessed April 8, 2008], http://www.cornhusker-power.com/householdappliances.asp Wikipedia, “Restriction of Hazardous Substances Directive,” [Online Document], 2008, [accessed April 8, 2008], http://en.wikipedia.org/wiki/Restriction_of_Hazardous_Substances_Directive Advanced Circuits, “RoHS Compliance Printed Circuit Boards,” [Online Document], 2007, [accessed April 8, 2008], http://www.4pcb.com/index.php?load=content&page_id=17 April, 2008