Sustainable Business

SB March 2014

Sustainable Business magazine - essential reading for sustainability professionals

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KS: We use solar panels at our Shanghai location to provide hot water heating for operations, and we may look at other locations for this technology. We've also looked at photovoltaic cells, but it's not a technology that we're pursuing because we haven't found it to be as cost effective as wind. Plus, we'd need several acres in an area for solar panels to produce the same amount of electricity that our two wind turbines now produce. When you look at the technology from a complete lifecycle perspective, we've found wind to better meet our needs. SB: Are you looking at any new renewables technologies that might be implemented in the future? KS: We are constantly on the look-out for new advances in technology, and always push ourselves to develop more innovative solutions to improve our carbon footprint. We have a global team in place who meets monthly to evaluate new and emerging technologies. We've developed solutions ranging from using waste from a public landfill for co-generation to using waste husks from rice grains as a fuel source for heating water used in mosquito coil production. We make decisions based on a careful understanding of what makes the most sense for each particular SC Johnson location. We've looked at fuel cells, which could be useful for smaller energy needs in locations further from a grid or where the cost of electricity is high relative to the cost of natural gas. However, we haven't found them to be the most efficient solution. Natural gas, for example, is more feasible. At our largest manufacturing facility, Waxdale in Mount Pleasant, Wisconsin,, we use natural gas in our co-generation unit, Q&A Kelly Semrau, SC Johnson 3/4 A Q A We've found that wind energy tends to be about two to three times less expensive per kWh produced than solar PV

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