A. The most significant caveat in installing a single rainmaker is that its efficacy cannot be proven.
In all the trials carried out to establish efficacy:
- At least 2 systems were installed at a sufficient distance apart to ensure no overlap of resulting ion plumes.
- The devices were randomly turned on and off to a pre agreed sequence, derived in conjunction with, and overseen by an independent panel of scientists and statisticians. At times both were operating, at times one or the other and at times none.
- Then a model was constructed comparing rainfall data from the dynamic model, using steering wind data to determine which rain gauges were target and which were control in all given conditions.
- Finally this model was compared with at least 10 years of data from the same sources prior to the trial taking place. The efficacy of the systems can be derived from the difference between the models, which accounts for seasonal variation and the effects of the topography.
B. A single system proposed as an entry level end user ‘trial’ is unlikely to be in the optimum location for all the rain bearing systems in a given season.
If rain bearing systems approach from 2 main directions, a mobile unit can be rented and relacted based on weather models
See the various options available under Equipment
Invesment return example
Outlay: 1 system
The average cost of fixed installation on a 12 month contract is approx $175,000, including installation, monitoring maintaining and removal. Difficult access could increase the cost.
Likely return: worst case
Assume the chosen location caused only a quarter of the passing rain bearing systems to be enhanced over the target area, probably a conservative assumption if best efforts were made.
Assume further that the enhancement was only 2% rather than the forecast 10%.
The additional value of water added to the target area would be reduced to $18,750,000.
Any money outlayed would be returned over a hundred times