Wind Resource - Wind Energy: Renewable Energy and the Environment - page 72

15. Contrast the amount of storage needed for data between the following: (a) 1 h average and
standard deviation (sample rate, 1 Hz) of sixteen channels, 1 year of data, and (b) 1 min
average and standard deviation (sample rate, 5 Hz) for sixteen channels, 1 year of data.
16. How many years should data be taken to establish a database to which shorter-term data
for wind farms can be referenced? In other words, a database to be used for a wind map
for a large region or state.
17. Estimate the cost for installation for a 50 m pole tower, guyed. For travel costs, estimate
difficulty for getting to the site.
18. Estimate the cost for installation for a 50 m lattice tower, guyed (example, Rohn 25G or
45G); include travel. For travel costs, estimate difficulty for getting to the site. For instal-
lation of the lattice tower, are you going to use a crane or an attached gin pole?
19. Estimate the cost for installation for a 100 m lattice tower, guyed; include travel. For
travel costs, estimate difficulty for getting to the site. For this lattice tower you are going
to use a crane. Remember, you now have to have lights per FFA regulations, which means
additional cost of power for remote locations.
20. Compare wind resource instrumentation (cost, sample rate, data storage, and data analy-
sis) from two different companies.
21. Are there any shareware programs for wind resource analysis?