Shared AEA & AEE Meeting, May 24, 2002

(written by Jeanette Raichyk, photos by John Robbins)



With an avid little group of a half dozen engineers and ae-enthusiasts, John Robbins, AEA's CoChair and local award winning energy engineer, gave an intensive, yet very individualized tutorial on solar power for a home office that covered all the technical angles as well as a whole range of learning styles.

For those who thrive on hands-on hardware, John had all the boxes and cables, batteries and panels, gauges and all, right there assembled and functioning. If your tastes ran to diagrams, his finely drawn expositions of both the outdoor design and the indoor components gave all the details of grounding and amps, fuses and switches and sizes.

"Complete with circuit breakers, fuses,
charge controller, inverter,
and the system battery bank, plus DC-outlets,
as well as charging stations for his portable batteries,
John's new power station fits neatly in a corner
of his office."

For those who want the "story", John told us how he measured his original office's demands for energy, researched his site's available sun and appropriate power equipment; then the tale of his yearlong quest to swap office hardware for more efficient versions, some even manual like the sensible basic pencil sharpener; his pursuit of logistics to minimize line loss and outlet strips to circumvent the elusive phantom-loads finetuned his designs until he arrived at his new ideal home office, customized to his work loads and patterns, even increasing his computing power and task lighting while reducing its power consumption by a whopping factor of 10!!

"John's main workstation includes (left to right) flat printer/copier,
two notebook computers and a fax/printer/copier. Monitor is for his
old 486 desktop computer below desk, used only for retrieving data
from history archives on older media. Multi-outlet switches
along wall allow easy control to power only devices in current use."

Phenomenal results like that deserve spreadsheets and graphs for the logic-minded and John had those analyses in abundance, showing peak and accumulating demands, progressions of improvements and their impact on the solar hardware needed, right down to the costs.

As John fielded questions on performance to-date of his design, now a reality, we got to switch things on and off, see how much energy the system itself used, appreciate the refinements that led to the elegant, all-encompassing simplicity and note the details of quality workmanship and safety.

Now if we had only videotaped it you could see for yourself!!

"Rear view of PV rack,
showing adjustable angle arm and
combiner box with lightning arrestor.
Structural design accomodates both
solar performance, rain drainage,
windstorm resiliance, and ease of prep for transport
in the event that John wants to move."

Edited and composed for AEA Alternate Energy Association by:
JR Davis & Associates (http://www. plexusmedia.com)

 

Copyright 1996 - 2002 by:
Alternate Energy Association

E-mail: aea@aea1.org#
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