Abstract
Although home energy management systems (HEMS) and batteries are part of the Thailand Smart Grid Master Plan, the financial feasibility and attractiveness of installing residential solar rooftop photovoltaic (PV) systems with integration of the HEMS and battery have never been investigated. This study develops three scenarios comprising of an installation of only solar PV system, solar PV system with the HEMS, and solar PV system with integration of the HEMS and battery under the current net billing solar program for households and analyzes their financial feasibility and attractiveness by using economic measures. In addition, sensitivity analysis is performed to analyze the impacts of critical parameters on the feasibility of these three scenarios. Findings indicate that the installation of a solar rooftop system with the HEMS provides the highest customer economics. Although the implementation of HEMs leads to an increase in energy exports, benefits from bill savings of lower electricity consumption by using the HEM are relatively high compared to the loss from energy exports. Therefore, in the short term, the government should promote the integration of HEMS with a PV system; however, the installation of a PV system with HEMS and battery in the residential sector should be promoted when battery cost decreases.
Highlights
Thailand started rolling out its first renewable energy development plan in 2009
Customer benefits from PV installation with home energy management systems (HEMS) and battery were divided into three main areas as electric bill savings from self-consumption of electricity generated from a PV system, bill saving from reduced electricity consumption by HEMS, and compensation of excess electricity injected to the grid
PV system was analyzed based on the people solar program under the three developed scenarios: Solar PV system (S1), Solar PV system with HEMS (S2) and Solar PV system with HEMS and battery (S3)
Summary
Thailand started rolling out its first renewable energy development plan in 2009. The government aimed to target approximately 500 MW of solar photovoltaic (PV) installations by the end of 2022. In 2011, a revised version called the alternative energy development plan (AEDP) was released with a new target for solar PV generation at 2000 MW. The AEDP has been revised several times with an increasing target of solar PV. In 2015, the solar PV target in the AEDP was set at 6000 MW by the end of 2036 [1]. The latest target for solar PV is 12,015 MW by 2037 as mentioned in the power development plan (PDP) of 2018
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
