<s>
TRNSYS	B-Application
is	O
a	O
simulation	B-Application
program	B-Application
primarily	O
used	O
in	O
the	O
fields	O
of	O
renewable	O
energy	O
engineering	O
and	O
building	O
simulation	B-Application
for	O
passive	O
as	O
well	O
as	O
active	O
solar	O
design	O
.	O
</s>
<s>
TRNSYS	B-Application
is	O
a	O
commercial	O
software	O
package	O
developed	O
at	O
the	O
University	O
of	O
Wisconsin	O
.	O
</s>
<s>
One	O
of	O
its	O
original	O
applications	O
was	O
to	O
perform	O
dynamic	O
simulation	B-Application
of	O
the	O
behaviour	O
of	O
a	O
solar	O
hot	O
water	O
system	O
for	O
a	O
typical	O
meteorological	O
year	O
so	O
that	O
the	O
long-term	O
cost	O
savings	O
of	O
such	O
a	O
system	O
could	O
be	O
ascertained	O
.	O
</s>
