Intergen to Host Second Quarter 2008 Results Call

Burlington, MA, August 28, 2008 - InterGen announced today that it has scheduled a conference call with bondholders and analysts for Thursday September 4, 2008 at 11:00 a.m. EDT to report operating and financial results for fiscal 2008 second quarter ended June 30, 2008.

The call is open to bondholders and analysts and will be hosted by Neil H. Smith, InterGen President and CEO, Martin Rees, InterGen CFO and Dan Rorabaugh, InterGen COO.

Investors and analysts who would like to participate in the call may do so by dialing (800) 369-1842 (domestic) or +1 (210) 234-0013 (international).

Pass code: INTERGEN 904
Leader: ROBERT MORRIS

To view the accompanying slide presentation and financial information, please register at www.intergen.com or contact investor_relations@intergen.com if you have not done so already. The slide presentation and a replay of the call will be available on the company’s website through the Q3 2008 results call.

InterGen is a global power generation firm with nine power plants representing an equity share of 5,235 MW of production capacity. InterGen’s plants are located in the UK, the Netherlands, Mexico, the Philippines and Australia. Additionally, InterGen’s 428 MW MaasStroom Energie project, located in the Netherlands, is currently under construction. InterGen is jointly owned by the Ontario Teachers’ Pension Plan and AIG Highstar Capital II, L.P.

For more information on InterGen, visit www.intergen.com.