More wind is available in the
winter months but more energy
is needed during the summer
months. The Subway Smart
System delivers energy when it is
needed during the year.

Fig. 2: Slow summer wind and high summer electricity use.

More wind is available at night but
more energy is needed during the
day. The Subway Smart System
delivers energy when it is needed
during the day.

Fig. 3: Energy Usage and Subway Frequency over 24 hours.