The Singapore-based developer will develop a 21 MW solar project in North Sulawesi province. It will be the largest solar installation in the country upon completion. Equis will also build three 7 MW projects in Lombok, in West Nusa Tenggara province. Those installations will be set up at undisclosed locations in the eastern and central parts of the island.

Construction of the projects will begin before the end of this year, with commercial operations scheduled to start at some point in 2018. Together, the four PV installations will generate 68.7 GWh of electricity per year, or enough for roughly 51,000 homes, according to an online statement Equis is currently developing 337 MW of solar in Indonesia, in addition to 840 MW of wind capacity. The renewables-focused IPP owns 4.4 GW of capacity at 97 sites throughout Australia, India, Indonesia, Japan, the Philippines, Taiwan and Thailand. It is developing a total of 6.7 GW of renewables throughout the region.

The company has announced a number of large-scale solar projects in several of those markets this year. In February, it revealed plans to invest A$400 million ($317.9 million) in 200 MW of PV capacity in Queensland and South Australia. In May, it selected EPC partners for a 13.7 MW solar project it is developing in Japan’s Aomori prefecture. And in August, it obtained approval to develop a massive 1 GW solar farm in Queensland.

Indonesia offers enormous solar potential, but development has yet to truly take off, with just 80 MW installed by the end of 2016, according to the International Renewable Energy Agency (IRENA). Most of that capacity was built last year, although the government’s policy framework for solar development has thus far been characterized by a lack of certainty and stability, prompting developers such as Equis to directly negotiate PPAs with PT PLN.

Last week, Global Green Growth Institute (GGGI) and the Indonesian Ministry of Planning (Bappenas) began accepting proposals to develop at least two solar, biomass or energy-efficiency projects in the country. Japanese trading firm Itochu also unveiled plans last week to install 507 kW of PV on top of a new mall in Jakarta, backed by an unspecified battery storage system.