RENEWABLE ENERGY IN THE KINGDOM OF TONGA NATIONAL PLAN

Estonia s energy storage implementation plan announced
The Estonian coalition agreed on the long-term energy development plan, which includes a measure to support long-duration energy storage. On 27 January, the Estonian government coalition announced plans to hold auctions for offshore and onshore wind parks, each with a capacity of 2 TWh. [pdf]FAQS about Estonia s energy storage implementation plan announced
How much money has Estonia provided for energy storage projects?
A state agency in Estonia has provided €5.2 million (US$5.7 million) in grants for 10 energy storage projects, including a 4MW/8MWh battery storage project from utility Eesti Energia. The state-funded Environmental Investment Centre announced the grant funding for the ten projects being developed by six companies today (28 June).
How many energy companies are there in Estonia?
The six companies are Utilitas Tallinn, Utilitas Estonia, Sunly Solar, Prategli Invest, Five Wind Energy, and Eesti Energia, and three out of the ten are heat storage projects, with the remainder for storing electricity.
What are Estonia's networking opportunities?
Our networking opportunities have been described as second to none by industry professionals. Estonia has provided €5.2 million in grants for energy storage projects, including an 8MWh battery storage unit from Eesti Energia.
Where is Estonia's largest battery storage facility located?
The flagship battery storage project commenced operations on February 1, only days before cutting ties with the Russian power grid. Estonian state-owned energy company Eesti Energia has inaugurated the nation’s largest battery energy storage facility at the Auvere industrial complex in Ida-Viru County.
Will Eesti Energia install a grid-scale battery energy storage system?
Eesti Energia, a utility based in Estonia, will install the country’s first grid-scale battery energy storage system (BESS).
What is Estonia's Auvere Bess project?
Estonia’s Auvere BESS project is designed to participate in both the electricity exchange and other energy markets to ensure the security of electricity supply. According to Eesti Energia board member Kristjan Kuhi, the battery is able to respond very effectively to fluctuations in the power system.

Tonga Energy Storage Container Energy Storage Power Station Enterprise
The two battery storage facilities use Storage GEM®, the innovative modular energy storage container technology developed by the Akuo Group. A total of 8 such containers have thus been deployed on Tongatapu, the Tonga archipelago’s main island: three Storage GEM® for Tonga 1 and five for Tonga 2. [pdf]
Nauru Photovoltaic Energy Storage Support Plan
The Solar Power Development Project will finance (i) a grid-connected solar power plant with a capacity of 6 megawatts (MW) of alternating current; and (ii) a 2.5-megawatt-hour, 5 MW battery energy storage system (BESS) to enable smoothing of intermittent solar energy. [pdf]FAQS about Nauru Photovoltaic Energy Storage Support Plan
How will ADB support the Nauru solar power development project?
ADB also provided GoN support to prepare a Feasibility Study for the recommended Nauru Solar Power Development Project which will comprise of a 6 megawatt PV plant coupled with a 5 megawatt / 2.5 megawatt-hour battery energy storage system coupled with a SCADA installation.
Who will implement solar project in Nauru?
The executing agency will be the Department of Finance and Sustainable Development. The implementing agency for solar component of project will be the Nauru Utilities Corporation (NUC). NUC will establish a project management unit within their existing organisational structure to implement the project.
What is a Nauru power expansion plan?
The electrical network comprises 11kV, 3.3KV and LV overhead lines. Asian Development Bank (ADB) provided Government of Nauru (GoN) a transactional technical assistance TRTA to prepare a Nauru power expansion plan. The plan identified that a PV array and battery energy storage system should be constructed.
How does Nauru get its energy?
Nauru predominantly sources its energy through diesel power generators. About 5% of its current energy demand is sourced from renewable energy, of which all is from solar power photovoltaic (PV) installations. A 500-kW ground-mounted solar installation was commissioned in 2016, and a number of residences have rooftop solar PV installations.
How will Nauru Utilities Corporation benefit from project preparatory technical assistance?
The project will also support the institutional strengthening of Nauru Utilities Corporation. Project preparatory technical assistance was used to carry out project-enabling activities such as a Solar Power Expansion Plan for Nauru, project feasibility study, detailed design, and plant procurement contract bidding documents.
How will Nauru's solar power system work?
The system will be fully integrated and automated with the existing diesel generation (17.9 MW installed capacity currently manually operated) to optimize solar energy use, to enable optimal BESS charging/discharging and to provide optimal shut off of the diesel engines. This will reduce Nauru’s over reliance on diesel for power generation.