The celebrations which started in top gear was temporarily affected by the power glitch, just when Raila Odinga was giving his address.
The mammoth crowd gathered at Mama Ngina drive broke into song and dance, while waiting for the issue to be sorted out.
Here are the reactions by Kenyans;
#ODM10At10Mombasa money is good sometimes,it saves you from power outages by getting you standby generators,disorganized party
— Bruce Njeru (@Bruce254njeru) 10 September 2016
— CLINT• (@ThuguClinton) September 10, 2016
— Bruce Njeru (@Bruce254njeru) September 10, 2016
— IG @colkon_ (@colkon) September 10, 2016