SINGAPORE, March 2 (Reuters) - Malaysia's largest electricity utility, Tenaga Nasional Bhd (TNB), and Singapore-based solar firm Sunseap Group announced on Tuesday they are forming a joint venture to participate in a tender to trial clean electricity imports into Singapore from Malaysia.

If successful, the partnership will import 100 megawatt (MW) of electricity to be generated from renewable energy sources, TNB and Sunseap said in a joint statement, which did not give any financial details.

The venture will contribute to Singapore's long-term efforts to power its future "through clean and green energy sources", said Frank Phuan, co-founder and chief executive of Sunseap, which is backed by investors including Temasek.

In October, Singapore said it plans to trial 100 MW clean energy imports from Malaysia over two years to assess and refine the technical and regulatory frameworks for power imports into the city-state and boost the security of its energy supply as part of a series of moves aimed at reducing its carbon footprint.

Singapore's Energy Market Authority (EMA) will issue this month a Request for Proposal (RFP) for the 100MW of trial electricity imports, according to the regulator's website.

The electricity to be imported by the partners could account for about 1.5% of Singapore's peak electricity demand, and could begin as early as end-2021 via the existing electricity interconnector between Singapore and Malaysia, the joint statement said.

If successful in the tender, the venture between Sunseap and TNB will invest in multiple solar farms across Malaysia and tap other forms of clean energy, such as hydro electricity, from TNB's existing plants to ensure a reliable and stable supply of power into Singapore, the statement said. (Reporting by Roslan Khasawneh; Editing by Christopher Cushing, Muralikumar Anantharaman and Louise Heavens)