There are numerous examples of water storage tanks being built into home interiors to form a thermal solar energy storage battery. I have also stumbled upon a few interesting examples on DIY solar for.
[pdf] 
TES helps address grid integration challenges related to the variability of solar energy. Storing thermal energy is less complicated and less expensive than storing electrical energy and allows CSP plants to deliver energy regardless of whether the sun is shining. In the past decade, the cost of energy produced. .
Thermal energy storage (TES) refers to heat that is stored for later use—either to generate electricity on demand or for use in industrial processes. Concentrating solar-thermal power (CSP) plants utilize TES to increase flexibility so they can be used as “peaker”. .
SETO research for TES and HTM primarily focuses on raising the temperature of the heat that can be stored, which will ultimately lower the. .
The kinds of thermal energy storage can be divided into three separate categories: sensible heat, latent heat, and thermo-chemical heat storage. Each of these has different advantages and disadvantages that determine their applications. storage (SHS) is the most straightforward method. It simply means the temperature of some medium is either increased or decreased. This type of storage is the most commerciall.
[pdf] This paper presents a hybrid renewable energy-based AC microgrid system integrating a diesel generator, solar photovoltaic (PV), wind turbine, and battery energy storage to enhance power quality, frequency stability, and power management efficiency.
[pdf] 
