Hong Kong Young Writers Anthologies Fiction 2020complete | Page 258

"Now let's go up to the roof, where most of the magic is. Like most economically-friendly
buildings, the roof is the most important part. Up here, there are many solar panels and the electricity from
the solar panels are used to power the few light bulbs that we have installed in the building. Not only that,
but there are also some devices installed on the roof meant to collect rainwater and reuse it for other uses,
such as cleaning windows, flushing the toilets, and watering the plants in the library. By reusing rainwater
for these uses, we will be saving water and water will not be wasted. On days when the weather is good,
people are welcome to sit in a section of the roof to read their books. This way, we won't need to keep the
lights switched on in some sections of the library," Jay said. "Now let's make our way to the East Side. Our
library is the most popular in the mornings, and since the sun rises from the east, we don't need to use so
many light bulbs on this side due to the natural lighting. Our tour ends here, thank you and goodbye!"
"The Greater Bay Area really has changed a lot since 2019," I murmured to myself, walking away.