Critical Assessment of Feed-In Tariffs and Solar Photovoltaic Development in Vietnam

Vietnam became the world’s third largest market for solar photovoltaic energy in 2020. Especially after the Vietnamese government issued feed-in tariffs for grid-connected solar photovoltaic systems, the installed capacity of solar photovoltaic applications exploded in 2019. From studies carried out in the relevant literature, it can be said that support policies are highly important for the initial development of the renewable energy industry in most countries. This is especially true in emerging countries such as Vietnam. This paper reviews the feed-in tariffs issued and deployed in different regions of Vietnam for grid-connected solar photovoltaic applications. Moreover, the paper takes a closer look at the costs of electricity production from these systems in relation to the feed-in tariffs issued in Vietnam. The results show that the gap between the levelized cost of electricity and the feed-in tariff for solar photovoltaic electricity is relatively high, particularly in regions with a lower irradiation potential.

Nanocage-oriented Induction for Highly Ion-selective Sub-1-Nanometer Channels of Membranes

Designing membrane with highly ion-selective conductivity is one of key question for the large-scale application of redox flow batteries, which can unlock the potential of the renewable energy industry. The...

Renewable Energy Industry: Challenges and Development Opportunities

The development features of the renewable energy industry in solar and wind generation sectors, both characterized by their high manufacturability and equipment and components export potential and their extremely low production scale have been presented. The issues in relation to the solar and wind resources efficiency, cost reduction of solar and wind generation, electricity production technologies by increased application of the international practices have been studied.

Calculation of Collectors for Social Housing in Different Climate Floors of Ecuador

Ecuador has significant potential in the renewable energy industry, to which solar energy contributes. The current investigation proposes a method to determine the savings when using solar collectors. The analysis is made for social housing projects located in different climate environments around the country: dry tropical megathermic (coast), semi-humid equatorial mesothermic (mountains), rainy megathermic (amazon), equatorial highlands (equatorial highlands). The cases studied are located in: Pasaje, El Oro; Cuenca, Azuay; Huamboya, Morona Santiago; and Chordeleg, Azuay. The method used in this research is an evaluation of drinking water per user demand (litter/person/day) which can determine the annual energetic demand. Furthermore, from the geographic location, the average solar radiation, and useful hours of sunshine are obtained. Then, these are used to obtain the available net annual energy. Furthermore, a relationship between demand and available energy is obtained for the solar collectors that satisfy the demand for the different locations studied. Finally, an analysis of the cost of implementing this technology and the projected savings in comparison to using hydrocarbons to heat domestic hot water is presented.