Vietnamese PV projects to examine potential of battery storage in avoiding curtailment

Jan 12, 2022 01:03 PM ET
  • Solar PV power generation in Vietnam could about to be maximised via the integration of battery energy storage systems (BESS), with consultancy AqualisBraemar LOC Group (ABL Group) hired to conduct feasibility research studies throughout multiple PV plants following curtailment issues in the nation.

After the Asian country experienced rapid development in mounted solar PV capacity, power generation from the renewable source is being reduced, greatly due to network blockage. A feed-in tariff (FiT) system had actually been wildly successful in incentivising brand-new solar PV, especially on commercial roofs, throughout 2020.

Norway-headquartered ABL Group has been employed by Dragon Capital's subsidiary, VN Green Holding, to check out the feasibility of setting up behind-the-meter BESS technology at up to 3 of VN Green's solar projects to mitigate the effect of curtailment.

The consultancy will make a detailed analysis of the PV plants to see how much curtailment has actually occurred as well as is anticipated in future and will after that model and also optimize a variety of possible BESS solutions.

The research will seek to implement the lowest expense of storage on a levelised basis to evaluate the business feasibility of this colocation of generation with batteries.

PV Tech's sister publication Energy-Storage. news asked ABL Group for the approximate or anticipated output and capacity of the BESS solutions, along with their colocated solar PV plants, but had actually not yet obtained a reply at the time of publication.

" We delight in to sustain Dragon Capital in the development and also optimisation of BESS for its PV projects in Vietnam," ABL Group's onshore renewables device director Richard Abrams said.

" We believe this model will certainly be transferrable to comparable projects moving forward, helping proprietors and drivers obtain one of the most out of their renewables possessions."

Energy storage anticipated to reduce integration of Vietnam's solar boom

Vietnam set up greater than 9GW of solar throughout 2020, consisting of 7GW of roof PV setups in just one month (December 2020).

Those capacity figures kept increasing and problems were likewise increased about security of the grid being affected by the influx of variable eco-friendly power installations, while major cuts to tariffs were additionally suggested.

Batteries might perform ramp rate control to integrate variable sustainable generation onto the grid, or time-shift energy from daytimes when production is plentiful, to evening top times, when it is not. They could also supply grid stabilising services like regularity and voltage control, help transmission as well as distribution (T&D) network organisations to conserve costs on pricey upgrades, and also a lot more.

At the Solar as well as Storage Finance Asia on the internet occasion organized last July by our publisher Solar Media, Vietnam was described as a "wonderful example" of a country in the continent where energy storage could make a large favorable influence on the shift to reduced carbon energy.

Alexander Lenz, APAC local chief executive officer for investment administration firm Aquila Capital, kept in mind that the FiT was originally expected to result in regarding 850MW of installations, yet instead sired greater than 10 times that amount. In total, there are about 16GW of solar plants in the country in overall, including 5GW of systems mounted prior to 2019.

There is nonetheless no policy or regulative mechanism in place to sustain the release of storage, Lenz claimed, suggesting that it depends on the clean energy sector energetic in Vietnam and also the bigger Southeast Asia region to be proactive in recommending solutions as well as business designs to regulatory authorities, policymakers, utilities as well as various other stakeholders.

Batteries can perform ramp rate control to integrate variable eco-friendly generation onto the grid, or time-shift energy from daytimes when production is abundant, to evening peak times, when it is not. They could also give grid securing services like regularity and voltage control, help transmission and also distribution (T&D) network organisations to save prices on expensive upgrades, and much more.

"With such a rapid growth trajectory [for solar in Vietnam], BESS will be a critical technology to recuperate lost generation, whilst maximising the efficiency of these critical infrastructure projects. This will likewise possibly supply much more sophisticated services to the local grid," ABL Group's Richard Abrams stated.

In October last year, a grant for simply under US$ 3 million was awarded by the US Consulate General in Ho Chi Minh City, Vietnam, to support a pilot project where BESS tools will be retrofitted to an existing utility-scale solar PV plant.

In that project, a 15MW/ 7.5 MWh BESS will be integrated at a 50MWp solar farm, intending to show the business practicality of batteries to help increase making use of renewable energy on the grid, consisting of with decreased curtailment. It complied with the 2018 award of a United States Trade and Development Agency (USTDA) grant to conduct a feasibility research study right into the deployment of innovative energy storage tech to state-owned power company Vietnam Electricity.

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