Posting in Cities
Although other organizations boast a higher percentage of on-site clean power, Walmart's sheer size makes it the biggest on-site generator among U.S. businesses.
The mood has shifted dramatically in the past 18 months in the United States as far as federal support of renewable energy technology. So much so that the wind production tax credit that has helped inspired many onshore wind farms is likely to expire at the end of this year.
But state-level support for incorporating more solar, wind, biomass, hydro, geothermal and other clean energy sources continues to be relatively strong. Two examples come from my home state of New Jersey, where the governor just signed a new bill to help make solar investments more attractive and whether PSE&G is seeking to invest another $883 million in projects that would help turn landfills and unused industrial properties into solar farms and that would inspire more distributed capacity in the form of residential projects.
The U.S. Environment Protection Agency keeps several lists that rank which companies, organizations and communities are most active when it comes to clean energy. One of my favorite ones is its list of the top 20 on-site generation leaders, because it counts actual projects. (The other lists also count renewable energy credits.)
The mid-year 2012 list just came out, and I wasn't surprised to hear that Wal-Mart Stores was at the top, based on the enormous number of projects that is has under way. The EPA estimates that about 4 percent of the retailer's power is currently provided by renewable sources, or about 114.9 million kilowatt-hours (kWh).
Here's the whole top 20, ranked by the number of renewable kWhs per year:
- Walmart (114.9 million kWH, or 4 percent) - Biogas, solar and wind
- BMW Manufacturing (61.8 million kWH, or 37 percent) - Biogas
- Coca-Cola Refreshments (47.5 million kWH, or 6 percent) - Biogas
- U.S. Air Force (39.7 million kWh, or less than 1 percent) - Biogas, solar and wind
- City of San Francisco (31.8 million kWh, or 4 percent) - Solar
- Kohl's Department Stores (28.4 million kWh, or 2 percent) - Biogas
- SC Johnson & Sons (27.9 million kWh, or 15 percent) - Biogas
- City of San Jose, Calif. (27.5 kWh, or 15 percent) - Biogas and solar
- City of San Diego (20.3 million kWh, or 8 percent) - Biogas, small hydro and solar
- City of Portland, Ore. (13.8 million kWh, or 8 percent) - Biogas, small hydro, solar and wind
- Encina Wastewater Authority (11.9 million kWh, or 70 percent) - Biogas
- Adobe Systems (11.6 million kWh, or 19 percent) - Biogas
- City of Tulare, Calif. Wastewater Treatment Plant (11.3 million kWh, or 45 percent) - Biogas and solar
- Google (10.6 million kWh, or less than 1 percent) - Biogas and solar
- Safeway (9 million kWh, or less than 1 percent) - Biogas, solar and wind
- University of Iowa (8.7 million kWh, or 3 percent) - Biomass
- City of Santa Cruz, Calif. (6.6 million kWh, or 58 percent) - Biogas and solar
- Zotos International (5.5 million kWh, or 51 percent) - Wind
- National Renewable Energy Laboratory (5.34 million kWh, or 27 percent) - Solar and wind
- Central Michigan University (5.1 million kWh, or 8 percent) - Biomass
Aug 5, 2012
First of all, many congratulations to the USA government for taking such a fantastic initiative to support and promote renewable energy technology. Many environmental consultants around the world trying to do exactly the same thing by putting proper environmental planning in place. We need to conserve energy and thus save this mother earth. We urge everybody to consult the expert environmental consultants before undertaking large infrastructure development project to minimise the negative effect of such big projects. For more information on how to develop environment friendly large infrastructure projects, please visit http://www.seran.com.au.
Affordable on site renewable power production is the key to a renewable, distributed power grid in the 21st century. Affordable must be the top priority of any renewable power solution. On site has continuously proven to have a better ROI than big renewable power stations. Now they need to improve the price point to where it is available and cost effective for the average home owner to install. That is a tall order, but the company that does it first and does it right, will claim the market like Apple did with the iPod and then iPhone.