(Reuters) - U.S. Southeast utilities said on Friday they restored power to over 80 percent of the 7.8 million homes and businesses knocked out by Hurricane Irma, leaving about 1.5 million of those customers still without electricity. Based on the number of individuals each customer represents, that, however, still leaves about 3.2 million people sweltering in the Florida and Georgia heat without air conditioning. Most of the remaining outages were in Florida Power & Light s service area in the southern and eastern parts of the state. FPL, the state s biggest electric company, said 960,000 customers had no power, down from more than 3.6 million on Monday. NextEra Energy Inc s FPL, which serves nearly 5 million homes and businesses, has said it expects to restore power to essentially all customers in the eastern portion of Florida by the end of the weekend and the harder-hit western part of the state by Sept. 22.  Outages at Duke Energy Corp, which serves the northern and central parts of Florida, fell below 300,000 from a peak of around 1.3 million on Monday. Duke said it expects to restore service to most of its customers by midnight Sept. 17. In coming days, temperatures are forecast to reach 90 degrees Fahrenheit (32 Celsius) in Miami, the high 80s F (low 30s C) in Jacksonville and the mid-80s F (around 30 C) in Atlanta, according to meteorologists at AccuWeather. Irma hit southwestern Florida on Sunday morning as a Category 4 hurricane, the second most severe on the five-step Saffir-Simpson scale. On Monday, when most customers were without power, the storm weakened to a tropical depression. In Georgia, utilities reported outages fell to about 61,000 from a peak of around 1.3 million on Monday. Other big power utilities in Florida are units of Emera Inc and Southern Co, which also operates the largest electric company in Georgia. The following lists major outages according to the utilities  websites:            Power Company                     State      Out Now         Served                       NextEra - FPL                      FL        960,000       4,904,000                       Duke - Florida                     FL        294,000       1,800,000                       Lee County Electric                FL         61,000        200,000                       Emera - Tampa Electric             FL         41,600        425,000                       Southern - Georgia Power           GA         31,500       2,482,000                       Georgia EMCs                       GA         30,100                                  Clay Electric                      FL         24,700        173,000                       JEA                                FL         20,900        455,000                       SECO                               FL         16,300        200,600                       Keys Energy Services               FL         13,900        29,000                       Florida Keys Electric              FL         12,200        33,000                       Glades Electric                    FL         11,400        16,000                       Withlacoochee River Electric       FL         8,200         217,000                       Orlando Utilities Commission       FL         7,400         234,700                       Suwanee Valley Electric            FL         4,800         25,600                       Peace River Electric               FL         3,000         40,000                       Gainesville Regional Utilities     FL         2,600         93,000                       Central Florida Electric           FL         2,300         35,600                       Duke - South Carolina            NC, SC       1,100         740,000                                                       Total Out   1,547,000                      
Factbox: Some 1.5 million still without power in U.S. Southeast after Irma