Environmental Defense Fund (EDF) and Kohlberg Kravis Roberts & Co. L.P. (KKR) announced a “Green Portfolio” partnership to measure and improve the environmental performance of companies within KKR’s U.S. portfolio.

Building on their successful collaboration in the 2007 acquisition of TXU Corporation, the partnership is the first of its kind between a private equity firm and an environmental organization.

KKR has committed to work with EDF to develop a set of analytic tools by which companies can assess and track improvements on a series of environmental metrics. These tools will enable managers to cost-effectively improve efficiency, reduce waste and address environmental impacts, such as greenhouse gas emissions, the use of toxic substances, waste generation or water consumption.

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