ADB said yesterday (25 November) that the US$200 million loan will fund the Power System Strengthening and Renewable Energy Integration Project, which includes the deployment of the South Asian country''s first grid-scale battery energy storage system (BESS).
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 companies, Ceylon Electricity Board (CEB) and Lanka Electricity Company (LECO).
New transmission lines and substations will be added to the 220kV and 132kV transmission infrastructure, the medium voltage distribution network will be modernised, and grid protection systems will be upgraded.
Meanwhile, a 100MW/50MWh BESS for integrating renewable energy generation will be deployed and connected to the transmission network via a CEB substation in Kolonnawa, close to the capital, Colombo.
Additionally, a system for forecasting and monitoring renewable energy will be built, along with the installation of SCADA systems and remote terminals that provide T&D operators with real-time data and alerts.
The country currently sources power from a relatively high share of renewables due to hydroelectric generation facilities and some contributions from distributed solar PV and wind. However, about 50% comes from thermal generation by fossil fuel sources.
According to the International Energy Agency (IEA), in 2022, the electricity generation mix included 40.8% from hydroelectric, 34.6% from coal and 15.2% from oil. About 4.4% came from wind, a slightly smaller share from solar PV and a small percentage from biofuels.
While it contributed just 0.05% of global carbon dioxide emissions in 2022, its energy-related CO2 emissions rose 74% from 2000 despite renewables accounting for 50.2% of electric power generation, the IEA has said.
However, the country''s ongoing economic crisis, which began in April 2019, has led to macroeconomic challenges, which the development bank said are slowing the progress of projects, leading the International Monetary Fund (IMF) to prioritise investment in power sector projects.
"Driving power sector reforms, combined with targeted infrastructure interventions, is essential to facilitate competitive renewable energy development and reduce power generation costs," Takafumi Kadono, ADB country director for Sri Lanka said.
"By expanding and modernising infrastructure and incorporating digitalisation solutions, this project will support the government''s goal of increased integration of renewable energy in the electricity mix, reduce power interruptions, and minimise transmission and distribution losses."
“Cabinet approval was granted yesterday to enter into a PPA with United Solar Group (USG) of Australia to invest in a 700MW solar power project with a 1500MWh of battery energy storage system,” he said.
The project is being developed by USG’s local subsidiary in Sri Lanka United Solar Energy SL Pvt Company. On its site, it says that US$500 million of the investment is earmarked for domestic project components.
USG was founded in Australia by electrical, computing and telecommunications entrepreneur Richard Vargas, with plans to build over 20,000MW of renewable energy capacity over the next six years globally, it claims.
It would be among the largest solar-plus-storage projects in the world and certainly the largest built in Sri Lanka. Though few if any large-scale energy storage projects have been announced there, the government did recently kick off a 70MW ground-mounted solar tender scheme, as reported by our sister site PV Tech.
Electricity is increasingly being generated from renewable sources – solar, wind, geothermal, bioenergy and hydropower – but their output is intermittent. By utilizing advanced tech solutions, such as Battery Energy Storage Systems (BESS), we can unlock the full potential of these resources. Bureau Veritas supports accelerated BESS installation deployment with dedicated solutions for project developers, Engineering, Procurement and Construction companies (EPCs), investors and lenders.
Today''s renewable energy storage solutions were inconceivable just a few years ago. Now, with decreasing costs alongside accelerating innovation in digital technologies, battery storage is not just an increasingly viable option, but an integral part of renewable energy solutions.Safety, quality and performance are paramount when developing and operating BESS installations, whether they are standalone or integrated with renewable generating resources. Bureau Veritas'' services span the entire asset lifecycle to ensure projects run securely and efficiently.
Several factors drive the surge in energy storage solutions uptake. Firstly, product costs are decreasing while performance is improving. Meanwhile, efforts are being made globally to modernize the power grid, with many nations looking to become energy self-sufficient.Bureau Veritas is playing its part by supporting clients throughout asset origination, project development and project deployment. We ensure that asset deployment is completed on-time and to-budget, and that assets remain reliable and safe over their operational lifetime.
Wind and solar are intermittent energy resources. Therefore, the energy supply from these resources is not predictable. In theory however, this situation can be solved easily. To get a constant power output from a solar or wind power system, it is only necessary to size the system larger and to store the surplus energy for later use. In practice, however, the solution is not so simple because large-scale Energy Storage Systems (ESS) are currently quite expensive.
Smart Batteries - this is perhaps the first ESS that comes to mind when the concept is mentioned. Moreover, it is in the limelight since the launch of the Tesla Powerwall. The principle is simple: surplus generation from solar or wind power systems is stored in batteries and used when it is needed or when it is considered convenient.
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