Present: Not sure just now. (I arrived 3 minutes late)
1) Affect grant proposals are IN. The two that made the cut are the
RAPID module and the micro turbine for Thule. Notification in
April, awards in June. Well done all.
2) Summit/ISI planning. Have general agreement about the grid
concept (inverter based), and also about the transmission line.
Jay points out that we need to consider the costs as well, want to
avoid getting into the plan where there isn’t an inexpensive
option; the “do-nothing” approach for example being to put a 200 kw
gen up there and run it for 20 years (or, as Jack suggests, several
50 KW gens. Don’t want to design something that NSF can’t afford.
Some discussion about how much detail we need to go into for this
kind of scenario, maybe not super-fine grained.
Estimates for the transmission line: 5kV line. $426k.
Significantly higher than earlier projected. This estimate
includes everything- transformers, cable (multiple reels), labor to
trench it in, etc. Assumes cargo transported by GRIT. Includes
transport costs to get it to Norfolk. Many members of the call
want to see what’s behind the numbers. Now on to some discussion
of the strain possibilities in the snow. Noted that the N-S
orientation of the cable is very good, the maximum strain being an
E-W direction. There will also be extra cable spooled up on either
end so that as buildings get jacked up there’d be scope for that.
Greg will look for strain data on the cable. Dick was thinking
that we would use the S Pole model, Tracy points out that
accumulation at Summit will bury the cable very deeply very fast.
More inquiry will be made into the S Pole system.
Now discussion of the storage requirements for periods of
autonomy. possibilities of using capacitors in addition to
deep-cycle batteries, many types of storage available. Tracy
looking for input on these parameters.
Larger discussion of cost/benefit of the renewable energy options
vs a lot of diesel fuel.
Next call- March 11.