SIL Power Plant
Our first unit, located in Pahae Jae District which started to operate in March 2017 with the capacity of 110 MW
NIL Power Plant
NIL power plant located in Pahe-Julu District, consists of NIL-1 which started to operate in October 2017 and NIL-2 which started to operate in May 2018
Diversity unite our people from different background and experiences to do their best work
SOL is committed to develop on-target and sustainable CSR program with the aim to improve people’s skills to improve their quality of life


Indonesia has the world’s largest potential geothermal resources due to its unique location near the ring of fire. The development of the geothermal power projects as one of the strategic and environmentally friendly energy sources has become the priority of the Government of Indonesia to promote renewable energy from geothermal resources.

Apart from tapping the rich geothermal resources, geothermal power projects are in line with Government’s objective in which Sarulla Project can contribute 330 MW as part of the Government’s plan in providing 35,000 MW electricity nationwide.

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Corporate Social Responsibility

As part of its Corporate Social Responsibility (CSR) to the communities surrounding the Sarulla Geothermal Power Project, SOL is committed to developing a sustainable, on-target and sustainable CSR program.


SOL participated in IIGCE 2018 held on 4-6 September 2018. SOL arranged the presentation that shared the Geothermal knowledge to the convention’s and exhibition’s visitors.

Our Business

The Sarulla project is located in Pahae Julu and Pahae Jae Districts, North Tapanuli Regency, North Sumatra Province.

Sarulla Operation Ltd, Head Office
The Energy Building 51st Floor, SCBD Lot 11A, Jl. Jend Sudirman Kav 52-53, Kebayoran Baru
, Jakarta 12190
ph: +62 21 2783 0000
fx: +62 21 2995 1649
head office

SIL Power Plant
Silangkitang Village, Pahae Jae District
, North Tapanuli Regency, North Sumatra Province 22465, Indonesia
sil power plant

NIL Power Plant
Simataniari Village, Pahae Julu District
, North Tapanuli Regency, North Sumatra Province 22465, Indonesia
over nil