Maha Oya Pumped Storage Power Station
The Maha Oya Pumped Storage Power Station is a 600MW pumped-storage power station being developed in the Aranayaka and Nawalapitiya areas of Sri Lanka. Upon completion, it will be the country's first energy storage facility, and one of the largest power stations in Sri Lanka in terms of nameplate capacity. The Maha Oya facility is designed to store excess renewable energy from solar and wind sources, thus creating supporting infrastructure for Sri Lanka's target of generati
Maha Oya Pumped Storage Project Set for Launch
The PSPPs provide a versatile and reliable energy storage solution, operating independent of seasonal fluctuations of renewable energy resources, to ensure a consistent power supply throughout the year.
CEB advances Maha Oya Pumped Storage
The Ceylon Electricity Board (CEB) has announced that it is making substantial progress in launching the Maha Oya Pumped Storage Hydropower Project, marking Sri Lanka’s first-ever large-scale energy
Sri-Lanka's first grid-scale battery storage project
The overall project aims to enhance the reliability and optimise the existing fault clearance system of transmission and distribution (T&D) networks of Sri Lanka’s two grid-connected electric power
(PDF) Energy Storage Solutions for Sri Lanka
This report delves into the transformative phase of Sri Lanka’s energy sector, highlighting the growing adoption of renewable energy sources like solar and wind power.
Sri Lanka’s First “Water Battery”: Maha Oya Pumpd-Storage
This landmark project is designed to store excess solar and wind energy during off-peak hours and release it during peak demand, ensuring a stable, reliable, and sustainable
A Comprehensive Overview of Sri Lanka's Pumped Hydro
This paper reviews the current status of Sri Lanka's power sector, assesses PHS potential in Sri Lanka, and examines the benefits of PHS development for Sri Lanka.
Powering the Future: Inside CGN’s Energy Storage Breakthrough
This isn’t just another infrastructure project – it’s Sri Lanka’s backstage pass to energy resilience. Let’s unpack why this energy storage power station is making waves from Colombo to Jaffna.
Energy Storage: Powering the Next Leap in Sri Lanka’s
As Sri Lanka’s energy demands evolve, hybrid renewable systems combining solar, wind, and battery storage are becoming the new normal. ISL is proud to be part of this
$ 1 b pumped storage project: International funding yet to be
The planned pumped storage is expected to store around 600 MW of energy. Located in Aranayake and Nawalapitiya, the project will store excess Renewable Energy (RE)
Maha Oya Pumped Storage Power Station
The Maha Oya facility is designed to store excess renewable energy from solar and wind sources, thus creating supporting infrastructure for Sri Lanka's target of generating 70% of its electricity
Maha Oya Pumped Storage Project Set for Launch
The PSPPs provide a versatile and reliable energy storage solution, operating independent of seasonal fluctuations of renewable energy resources, to ensure a consistent
CEB advances Maha Oya Pumped Storage hydropower project
The Ceylon Electricity Board (CEB) has announced that it is making substantial progress in launching the Maha Oya Pumped Storage Hydropower Project, marking Sri
Sri-Lanka's first grid-scale battery storage project
The overall project aims to enhance the reliability and optimise the existing fault clearance system of transmission and distribution (T&D) networks of Sri Lanka’s two grid
Sri Lanka’s First “Water Battery”: Maha Oya Pumpd-Storage Power Station
This landmark project is designed to store excess solar and wind energy during off-peak hours and release it during peak demand, ensuring a stable, reliable, and sustainable
Powering the Future: Inside CGN’s Energy Storage Breakthrough in Sri Lanka
This isn’t just another infrastructure project – it’s Sri Lanka’s backstage pass to energy resilience. Let’s unpack why this energy storage power station is making waves from Colombo to Jaffna.
$ 1 b pumped storage project: International funding yet to be
The planned pumped storage is expected to store around 600 MW of energy. Located in Aranayake and Nawalapitiya, the project will store excess Renewable Energy (RE)

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