by Analyzing Historical Databases for
Solar Farm Project in Indonesia
FEATURED PAPER
By Tengku Rizki Fahril Mukti
Pekanbaru, Indonesia
ABSTRACT
Indonesia’s energy consumption is approximately 2 billion barrels of oil equivalent per year, around 85% of which is from Non-Renewable Energy and sourced from imports, leaving Indonesia in an energy-dependent situation. Indonesia’s location near the equator gives an advantage with the abundance of RE sources, especially Solar, but its potential is underutilized. The Indonesian Government set a target of 53% of energy produced from renewable sources in 2050, with solar energy as its centerpiece. Solar energy’s future is bright; investment in this sector is expected to increase, and it is imperative to facilitate the progress by providing a Parametric Model (CER) as a tool to estimate a Solar Farm project (Class 4 for Feasibility study). By doing so, the company can expedite the decision-making process and develop a new business case fast & efficiently.
Keywords: AACE, CAPEX, CER, Cost Estimate, Indonesia, Parametric Model, Renewable Energy, RUEN, Solar PV.
INTRODUCTION
- Indonesia’s Energy landscape and its challenges
As per 2024’s data[1], Indonesia consumes approximately 2 billion BOE (Barrel Oil Equivalent) of energy annually, an increase 7.46% from the prior year. From that figure, Coal (40.4%), Crude (28.58%) and Natural Gas (16.03%) constitute 84.65% of energy source, just miniscule amount of percentage sourced from renewable energy (15.35%), comprised mostly of Biofuel (4.49%), Biomass (3.46%), Hydropower (2.53%), Geothermal (1.55%) and very small percentage of Solar PP & Solar PV (0.30%). This figure shows how heavily reliant this country is on non-renewable fossil fuels and their derivative product.
Indonesia’s reliance on coal as the first and main energy source is not without reason; it is rich in coal and one of the largest coal producers (1st in the world) and exporters (2nd in the world)[2], the regulation is well-shaped to foster and sustain this status[3]. While it may be beneficial to source energy locally, it is neither economically nor environmentally sustainable[4].
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Author’s note: This paper was originally prepared during a 6-month long Graduate-Level Competency Development/Capacity Building Program developed by PT Mitrata Citragraha and led by Dr. Paul D. Giammalvo to prepare candidates for AACE CCP or other Certifications. https://build-project-management-competency.com/our-faqs/.
How to cite this paper: Mukti, T. R. (2026). Developing Class 4 Cost Estimate model by Analyzing Historical Databases for Solar Farm Project in Indonesia; PM World Journal, Vol. XIV, Issue IX, September Available online at https://pmworldjournal.com/wp-content/uploads/2026/09/pmwj168-Sep2026-Mukti-Cost-Est-Model-for-Solar-Farm-Project.pdf
About the Author

Tengku Rizki Fahril Mukti
Pekanbaru, Indonesia
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Tengku Rizki Fahril Mukti is an engineer with nine years of professional experience in oil and gas sectors. During his career, he has an experience as a Design Engineer and Cost Estimator. He has been involved in several projects, including Fuel Terminal Facilities, Piping/Pipeline Construction, and Jetty Facilities throughout Northern and Southern Sumatera.
He holds a bachelor’s degree in Civil Engineering from Bandung Institute of Technology (ITB), and a certified engineer from The Institution of Engineers Indonesia (PII).
He is attending a distance learning mentoring course, under the tutelage of Dr. Paul D. Giammalvo, CDT, CCE, MScPM, MRICS, GPM-m Senior Technical Advisor, PT Mitrata Citragraha, to attain Certified Cost Professional certification from AACE International.
Tengku Rizki resides in Pekanbaru, Indonesia, and his email address is tengkurizkifm@gmail.com
[1] Ministry of Energy and Mineral Resources, Republic of Indonesia. (2025). Handbook of Energy & Economic Statistics of Indonesia 2024. https://www.esdm.go.id/assets/media/content/content-handbook-of-energy-and-economic-statistics-of-indonesia-2024.pdf
[2] IEA, World Energy Balances, IEA, Paris https://www.iea.org/data-and-statistics/data-product/world-energy-balances, License: Terms of Use for Non-CC Material
[3] Andi, D.(2021). Porsi batubara di RUPTL 2020-2029 naik, transisi energi bakal sulit terlaksana . https://industri.kontan.co.id/news/porsi-batubara-di-ruptl-2020-2029-naik-transisi-energi-bakal-sulit-terlaksana
[4] Perdana, A. P.(2025). Coal Sustainability Challenges and Post-Mining Economy. https://www.kompas.id/artikel/en-tanda-tanya-keberlanjutan-batubara-dan-dampaknya-pada-lingkungan







