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ADB Inaugurates Project to Replace Diesel Systems with Solar Hybrid Across Maldives

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The Asian Development Bank (ADB) and the Environment Ministry of the Maldives have inaugurated the implementation of a solar–battery–diesel hybrid system in 48 islands under the flagship Preparing Outer Islands for Sustainable Energy Development (POISED) Project to help the country tap solar power and reduce reliance on costly, polluting diesel.

The POISED Project aims to transform existing diesel-based energy minigrids into hybrid renewable energy systems in 160 inhabited islands of the atoll nation, out of which installations on 48 islands spread across 8 atolls have been commissioned. The project has been achieving this by investing in solar photovoltaic (PV) power plants, battery energy storage systems, energy management systems, and efficient diesel generators, as well as distribution grid upgrades to allow future renewable energy penetration.

“The POISED project—one of the largest energy sector interventions in the Maldives—will introduce sustainable energy in the outer islands as well as help reduce the cost of energy, minimize CO2 emissions, achieve considerable fuel savings, and reduce the burden on the government budget,” said the Director of ADB’s Energy Division for South Asia Mr. Priyantha Wijayatunga.

Mr. Wijayatunga, Minister of Environment Mr. Hussain Rasheed Hassan, and Minister of National Planning and Infrastructure Mr. Mohamed Aslam were among those taking part in a ceremony to inaugurate the project in Malé.

The Maldives is the first country in South Asia to achieve 100% access to electricity. Each inhabited island was electrified with its own diesel-powered grid system that was old and inefficient, resulting in expensive and sometimes unreliable electricity supply. Diesel power is also costly and requires government subsidies in excess of $40 million a year. The 100% diesel dependence of the Maldives makes it completely reliant on oil imports and also makes its carbon emissions per unit of electricity among the highest in the region. Project installations were able to prove that the optimally designed solar–battery–diesel hybrid systems could significantly lower the power generation cost compared to existing options.

The project already installed approximately 7.5 megawatt peak (MWp) of solar PV facilities, 5.6 megawatt-hour (MWh) of battery energy storage systems and 11.6 megawatts of energy-efficient diesel gensets, while also upgrading distribution grids in 48 islands. The overall project will target a minimum of 21 MWp of solar PV installations. This will cater for an annual demand of 27,600 MWh, accounting for a reduction of 19,623 tons of CO2 emissions annually.

The POISED Project, approved in September 2014, is supported by $55 million in grants from ADB—$38 million from the Asian Development Fund, $12 million from the Strategic Climate Fund (SCF), and $5 million from the Japan Fund for the Joint Crediting Mechanism (JFJCM)—and $50 million loan from the European Investment Bank (EIB). All the contracts under ADB for SCF have completed installations, while installation under JFJCM is currently in progress. Disbursements under EIB funding have commenced and EIB funds would be used for most of the remaining smaller islands.

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AIIB’s USD60-M Solar Investment in Oman Supports Diversified Energy Mix

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The Asian Infrastructure Investment Bank’s (AIIB) Board of Directors has approved a USD60-million loan to increase Oman’s renewable power generation capacity and reduce the country’s dependence on gas and other fossil fuels for electricity generation. This is AIIB’s first nonsovereign-backed financing in the country’s renewable energy sector.

The project is a 500-megawatt greenfield solar photovoltaic power plant in Ibri being developed by a special purpose company established by ACWA Power, Gulf Investment Corporation and Alternative Energy Projects Co. It is Oman’s first utility-scale renewable energy project to be connected to the grid. The total project cost is approximately USD400 million.

Oman’s sustained economic and population growth over the past decade has led to fast-growing electricity demand and put a strain on the existing power infrastructure. The country has one of the highest solar densities in the world, providing a great development potential for solar energy resources. Currently, almost all the installed electricity capacity in Oman is fueled by natural gas, leaving huge potential for renewable energy.

“AIIB’s investment will increase the availability of Oman’s renewable power generation capacity and contribute to filling the anticipated gap in peak demand,” said AIIB Vice President D.J. Pandian. “The project will also help the country move toward a more balanced and environmentally sustainable energy mix to ensure long-term energy sustainability.”

The project is in line with AIIB’s energy sector strategy in reducing the carbon intensity of energy supply and catalyzing private capital investment in renewable energy infrastructure. AIIB’s involvement will ensure the use of high environmental and social standards in the project.

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IEA support Luxembourg’s ambitious energy transition goals

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Luxembourg is targeting a sharp reduction in emissions by 2030, but new measures are needed to boost investment in renewables and energy efficiency, new IEA report says.

The International Energy Agency released its latest in-depth review of Luxembourg’s energy policies today, welcoming the country’s ambitions to shift to a low-carbon economy.

Luxembourg has shown positive signs in its efforts to move ahead with its clean energy transition, according to the report. While the country has enjoyed robust economic and population growth, its energy demand and greenhouse gas emissions have declined for much of the past decade, until they started to rise again in 2016, due to increased fuel sales to trucks in transit. The share of renewables in its energy supply has doubled since 2008.

“The Luxembourg government is committed to the goals of the Paris Agreement and has adopted ambitious energy sector targets, including reducing its greenhouse gas emissions by as much as 55% by 2030,” said Dr Fatih Birol, the IEA’s Executive Director. “The IEA is ready to support the government’s efforts to achieve these goals, starting with the recommendations contained within this report.”  

The report notes that Luxembourg faces challenges in achieving its energy objectives. The country’s energy supply is dominated by fossil fuels, and carbon dioxide emissions are rising since 2016. This trend is driven by higher fuel consumption in the transport sector, mostly from fuel sales to international freight trucks and commuters.

“It is encouraging that the government has embraced an electric vehicle initiative with the intention of reducing greenhouse gas emissions and fuel imports”, Dr Birol said. The initiative is targeting the deployment of 800 public charging stations for electric vehicles by 2020. The aim is for 49% of all vehicles registered in Luxembourg and 100% of the national bus fleet to be electric by 2030. These goals are supported by subsidies for electric vehicles, major investments to increase the level and quality of electrified public transport, the introduction of free use of almost all forms of public transport in March 2020, and gradual increases in excise duties on diesel and gasoline. The report calls on the government to evaluate how much existing transport policies contribute to its energy sector targets and formulate a set of coherent measures to achieve a sustained reduction in fuel demand.

Luxembourg has the highest share of electricity imports among IEA member countries, with imports covering nearly 90% of electricity demand in 2018. Luxembourg expects its electricity demand to rise as a result of a growing population and economy and the increasing electrification of the transport and heat sectors.

The IEA report notes that Luxembourg is undertaking actions on several fronts to ensure a secure supply of electricity. The country is aiming to increase domestic electricity generation to cover one-third of national demand by 2030, mostly from solar PV and wind. Luxembourg is also actively cooperating with neighbouring countries on energy security and is planning to strengthen its electricity grid to support additional imports and domestic renewable generation. The report recommends that infrastructure plans and processes should be aligned with renewable energy deployment and should facilitate smart grid technologies such as demand‑side response, batteries and other energy storage options.

Luxembourg has generous support programmes for energy efficiency and renewable energy, two of the pillars of clean energy transitions. However, the IEA report finds that the country’s low taxes on energy represent a barrier to the investments needed in energy efficiency and renewables to meet the government’s targets. The report calls for the gradual introduction of carbon pricing, which if done wisely, could stimulate the behavioural changes and investments required for the transition to a low-carbon energy system. The government has announced a plan to introduce a carbon price in 2021. 

“I strongly believe that both policy and regulatory reforms can help Luxembourg achieve a cost-efficient, equitable and sustainable pathway to meeting its ambitious energy transition goals,” said Dr Birol.

Because of the exceptional situation resulting from the COVID-19 coronavirus epidemic, the IEA and the government of Luxembourg agreed to launch the report online rather than via a press conference.  

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Battery Storage Paves Way for a Renewable-powered Future

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photo:IRENA

Battery storage systems are emerging as one of the key solutions to effectively integrate high shares of solar and wind renewables in power systems worldwide. A recent analysis from the International Renewable Energy Agency (IRENA) illustrates how electricity storage technologies can be used for a variety of applications in the power sector, from e-mobility and behind-the-meter applications to utility-scale use cases.

Utility-scale batteries, for example, can enable a greater feed-in of renewables into the grid by storing excess generation and by firming renewable energy output. Furthermore, particularly when paired with renewable generators, batteries help provide reliable and cheaper electricity in isolated grids and to off-grid communities, which otherwise rely on expensive imported diesel fuel for electricity generation.

At present, utility-scale battery storage systems are mostly being deployed in Australia, Germany, Japan, United Kingdom, the United States and other European countries. One of the larger systems in terms of capacity is the Tesla 100 MW / 129 MWh Li-ion battery storage project at Hornsdale Wind Farm in Australia. In the US-State of New York, a high-level demonstration project using a 4 MW / 40 MWh battery storage system showed that the operator could reduce almost 400 hours of congestion in the power grid and save up to USD 2.03 million in fuel costs.

In addition, several island and off-grid communities have invested in large-scale battery storage to balance the grid and store excess renewable energy. In a mini-grid battery project in Martinique, the output of a solar PV farm is supported by a 2 MWh energy storage unit, ensuring that electricity is injected into the grid at a constant rate, avoiding the need for back-up generation. In Hawaii, almost 130 MWh of battery storage systems have been implemented to provide smoothening services for solar PV and wind energy.

Globally, energy storage deployment in emerging markets is expected to increase by over 40% each year until 2025.

Figure 1. Stationary battery storage’s energy capacity growth, 2017-2030

Currently, utility-scale stationary batteries dominate global energy storage. But by 2030, small-scale battery storage is expected to significantly increase, complementing utility-scale applications. 

The behind-the-meter (BTM) batteries are connected behind the utility meter of commercial, industrial or residential customers, primarily aiming at electricity bill savings. Installations of BTM batteries globally is on the rise. This increase has been driven by the falling costs of battery storage technology, due to the growing consumer market and the development of electric vehicles (EVs) and plug-in hybrid EVs (PHEVs), along with the deployment of distributed renewable energy generation and the development of smart grids. In Germany, for example, 40% of recent rooftop solar PV applications have been installed with BTM batteries. Australia aims to reach one million BTM batteries installations by  2025, with 21 000 systems installed in the country in 2017. 

Figure 2. Services provided by BTM battery storage systems

Overall, total battery capacity in stationary applications could increase from a current estimate of 11 GWh to between 180 to 420 GWh, an increase of 17- to 38-fold.

Read IRENA’s full Innovation landscape briefs on Utility-scale batteries and Behind-the-Meter batteries

Find more information about enabling technologies in IRENA’s Innovation Landscape briefs: Enabling Technologies

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