Energy Flexibility: a Hotel and Supermarket case study

In the context of smart grid development, energy flexibility is a critical factor for optimizing the integration of renewable energy sources and improving overall energy efficiency. This study focuses on the energy flexibility analysis of a simulated hotel and a supermarket refrigeration system. The main objective is to evaluate the potential for energy flexibility within the hotel building, that would en-able it to dynamically interact with the smart grid by adjusting its energy consump-tion based on supply conditions and demand response strategies. The hotel building was modelled with Type 56, which provides comprehensive ca-pabilities for simulating thermal zones, including heat gains, losses, and thermal storage effects. The building model was then coupled with a PV system, designed to meet part of the hotel’s electricity demand. Additionally, the model included a su-permarket equipped with a CO2 refrigeration system with heat recovery capabilities, here implemented to produce domestic hot water for the hotel. The study analyzed several scenarios to assess the hotel’s energy flexibility poten-tial. These scenarios included varying levels of PV generation, different DHW stor-age sizes, and the implementation of demand response measures.