In provision point mechanism, the cost threshold for provision introduces incentives for individuals to contribute toward the public good and, in general, the Pareto efficient outcome is a subset of equilibrium outcomes. However, the threshold cannot eliminate the pure free-rider equilibrium...

Traditional HATs (horizontal axis turbines) are predominantly used for wind and tidal energy generation. HATs have higher power production than VATs (vertical axis turbines) for which also requires a rotational motion of their rotors. Existing HAT installations and operations are widely seen as...

A computational hydrodynamics method was formulated and implemented for horizontal axis tidal turbines. This paper presents a comparative analysis between screw propellers and horizontal axis turbines, in terms of geometry and motion parameters, inflow velocity analysis and the implementation...

This paper reports on a stated preference study of exurban Rhode Island residents that assessed the relative attractiveness of a variety of commercial and recreational land uses. Focus group participants and town planners proclaimed a demand for certain commercial developments such as grocery...

We introduce two institutions that provide multiple public good units, assuming that a market-maker has the ability to establish groups of contributors. We set up a public good experiment where either all N individuals form one group to provide two units, or divide the N participants into two...

Tidal turbine rotor blade fractures and failures have resulted in substantial damage and hence cost of repair and recovery. The present work presents a rotor blade design and optimization method to address the blade structural strength design problem. The generic procedure is applicable to both...

We design two institutions that collect individual contributions to provide multiple public good units, inspired by a problem to deliver ecosystem services as a step-level public good (delivered in discrete increments). We set up a public good experiment wherein either all individuals for one...

A series of bi-directional horizontal axis tidal turbine (HATT) rotors was prototyped. The geometry and motion parameters of the turbine series cover a wide range of tidal turbine operating conditions targeted to the tidal flow speed probability distribution of the Bay of Fundy, NS Canada. A...