* Cost of the project expected to be 1.2 bln dirham * solar project set to complete in April 2017 * Funding of the project primarily through bank loans (Adds details, quotes, context) DUBAI, Jan 15 (Reuters) - A consortium of Saudi Arabia's ACWA Power and Spain's TSK has won a bid to build a 1.2 billion dirhams ($327 million) solar power plant in Dubai, as the emirate looks to diversify to meet its growing energy needs. Saeed Mohammed al-Tayer, Dubai Electricity and Water Authority (DEWA) Chief Executive, said that the capacity of Phase 2 of the Sheikh Mohammed bin Rashid al-Maktoum solar Park would be increased to 200 megawatts from the previous target of 100 MW.