Environmental Engineering Reference
In-Depth Information
Fig. 7.9
Use of solar heat in reducing energy demand in winter and summer. (GSES
2011
)
from micro-hydro exploiting the kinetic energy in rain water, shower, kitchen or
even bath or toilet water as a micro-energy source. Local heat pumps, micro-wind
energy as well as emergency generators using a dynamo-equipped bicycle can also
be combined with rechargeable batteries to provide sources for small demands such
as mobile phone chargers or LED lighting in emergencies. In the case of bicycle
power generation (Fig.
7.10
), cycling for 3-20 h is necessary to generate power of
1 kWh. Using Small energy is thus possible, but is still in the research stage, and the
road to commercialization is not yet established.
