“The main concern in Vietnam is the risk of grid overload once these plants are completed,” Rystad analyst Minh Khoi Le had said as the solar scramble was under way. “EVN, the country’s only utility company will need to find more free space in the grid or these plants will not be producing to their designed capacity.”

Rystad was not alone in underestimating the Vietnamese boom. In a report published in November, the Asian Development Bank predicted solar to increase from a capacity of 368 MW at the end of 2017 to 850 MW – 0.5% of overall electricity generation – next year, 4 GW in 2025 (1.6%) and 12 GW (3.3%) in 2030.

Market research company IHS Markit had tipped Vietnam to be one of the most promising PV markets this year and forecast the emerging markets of Argentina, Egypt, South Africa, Spain and Vietnam together would account for 7% of the 2019 market – for 7 GW of new capacityHaving added just 8 MW of new solar capacity in 2017, Vietnam plugged in 106 MW last year and the nation is poised to take things to another level with IHS Markit analyst Josefin Berg projecting 2 GW will be installed in the utility scale sector alone this year.

Looking ahead

Following the period of breakneck development, the Vietnamese market is surely now in for a slowdown. According to EVN, another 13 solar plants are scheduled to be connected to the grid this year, for 630 MW of combined new capacity.