Total powers of the PV system located in each section (Central-1, 2 3 and 7) at AIST Tsukuba Center have
been monitored in the block. Electric power demands have been observed for assessing the peak-cut effect
on the electric demand bought from utility.
In order to evaluate the operational performance of the system,
weather monitoring sensors (pyranometer and ambient thermo-meter), and power line monitors were set up
adjacently. These data have been logged in PC every 6 seconds, and transmitted to the illuminated sign board via LAN.
Hundred individual PV systems will be
monitored by using performance diagnosis system developed by the authors [1] from this summer.
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ILLUMINATED SIGN BOARD -
An illuminated sign board located at
the central zone of AIST Tsukuba Center shows the
real-time power output from all and indivisual
sections of PV systems in AIST Tsukuba Center.
The ratio of the output to electric power demand
is also indicated at the left bottom corner,
thus serving to make people aware of the lessings of the sun while raising consciousness about energy conservation.
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Figure: The
illuminated sign board
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INTRODUCTIONS OF AIST 1MW SOLAR PHOTOVOLTAIC TOWN 
