The EEI Index Award for investor-owned electric utilities is presented
annually to EEI member companies that have achieved the highest
total shareholder return in their Large- and Small-Capitalization categories.
The EEI Index returns are based on total shareholder return calculations.
The award is given to companies with the highest five-year returns through
September 30, and presented to the winning companies at EEI's Annual Financial
Additionally, aggregate EEI Index results are calculated on
an ongoing basis, providing a good benchmark for member companies among their
peer electric utilities, and for electric utilities against other business
sectors. The overall EEI Index calculation is market cap-weighted.