Study of PV powered air conditioning for a classroom of University of Surabaya

This paper discusses the interaction between PV and air conditioning and how this can be exploited for a classroom at University of Surabaya campus. A cost analysis of the proposed grid-connected systems are calculated, including total investment, payback period and levelized costs. The most efficient way to connect PVs and air conditioning for a classroom is through a grid connected system. Simulation result shows that a 12 kWp PV system and the new AC units of COP 4,0 gives the LCOE about −3,334 IDR/kWh.

I. Introduction

Renewable energy such as solar can reduce the need to burn fossil fuels and in turn reduce the amount of greenhouse gasses being released into the atmosphere. To promote the use of solar energy, new innovative solutions must be created in both engineering and policy. Air conditioners are becoming more common and are a major strain on energy demands especially in tropical climate countries like Indonesia where air conditioning is used all year round. Up to 50% of buildings energy can be from air conditioning in subtropical regions [1].