Home energy management for home appliances using knapsack model

In recent months, increasing electricity bills have led to the need for consumers to manage their energy consumption efficiently. This study used the knapsack model for home energy management for home appliances to solve this problem. The aims are to adapt an optimization approach for daily appliance usage using the knapsack model for home energy management of home appliances and to compare the cost of electricity bills per day before and after using the knapsack model. The model was developed using IBM CPLEX software where the knapsack model will prioritize essential appliances for continuous use while nonessential devices are scheduled based on the cost budget limit. The results indicate that the knapsack model reduced daily electricity costs by RM0.22–RM0.66. This corresponds to monthly savings of RM6.60–RM19.80, representing approximately 4–12% compared to the actual daily costs. In conclusion, the model not only ensures optimal energy consumption but also provides consumers with a sustainable and cost-effective solution for managing household electricity usage.