<human>:  What are the advantages and disadvantages of using solar energy?
<bot>: Advantages of using solar energy:
 • Renewable and inexhaustible source of energy
 • Low operating cost
 • Environmentally friendly
 • Easy to install and maintain
 • Reduces electricity billsDisadvantages of using solar energy:
 • Expensive initial investment
 • Dependent upon weather conditions
 • Unreliable in cloudy days and in low light
 • Requires large tracts of land
 • Currently only suitable for small-scale applications