The main challenges with this technology is related to dealing with government policies that discourage small projects such as: 1. Environmental approval requirements that treat all projects below 200,000 kW the same (in Ontario) which places an increased burden on small projects. 2. Feed In Tariff (FIT) windows that have a start/stop affect on operations … Read more
Cost is a function of the model of screw selected, the unique site features and the screw specifications. We have no “standard” off the shelf products therefore general cost estimates are difficult to provide. We do display screw specs, costs and IRR figures for actual projects in progress and completed to provide this type of … Read more
Yes. However, a screw installation takes water from the top of a water source and has a fixed installation point. Therefore, when stop logs are removed, generation can cease if the water is lowered enough to cut off the water supply to the screw. If stop logs are removed for significant periods of time this … Read more
To determine a project’s feasibility we look at the following 4 factors: 1. Existence of adequate flow and head to make a project feasible. 2. Ability to install given the unique site features. 3. Connection feasibility. 4. Environmental issues that may impact a projects’ feasibility. These factors are all examined in our second level site … Read more
Before answering this question you have to decide how you define “optimal”. An “optimal” system to someone could mean for example: 1. a system that maximizes kilowatt hour production during a year (to maximize revenue or energy available for use) 2. a system with a high utilization rate (one that runs 100% all the time) … Read more
The first thing to ask when someone tells you the head and flow for their site, is “when?” because head and flow are constantly changing at every site and sometimes quite drastically. Therefore when someone gives us a simple figure for head and flow it is possible to provide a “spot” measurement of power generation … Read more