Tidal in-stream energy potential metric : calibration and estimation in selected sites in the Philippines

Tidal in-stream energy (TISE) resource assessment can be costly and presuppose that areas have already been identified as having potential before simulations and field surveys are done. Macro-level assessment of TISE potential using an energy potential (EP) metric previously proposed based on tide height differences at the channel boundaries. This EP metric is further studied and tweaked in this work. A combination of simulated currents, using DELFT3D, predicted currents from the National Mapping and Resource Information Authority (NAMRIA) of the Philippines, are used to calibrate the EP metric to and R-squared value of 0.70437 with an average estimation error of 13.577% for monthly energy densities. The EP metric is applied to pre-identified sites of the Department of Energy for tidal energy and estimates of the monthly tidal in-stream energy are presented

Tidal in-stream energy density estimates for pre-identified sites in the Philippines using a tide height difference-based metric

The Philippines, being an archipelagic country, is well known for its relatively strong and persistent currents in its straits and channels. Harnessing these strong currents for tidal in-stream energy will greatly help reduce the dependency of the country to imported oil for power generation. The developed energy potential (EP) metric was validated using sites identified by the Philippines' Department of Energy (DOE) as having high potential for ocean tidal energy. This metric provides a less complex methodology with acceptable accuracy for tidal in-stream resource assessment that makes use of tide height difference at the boundaries of a channel. Using this enables geographic information system (GIS) based data to increase turn-around time for site suitability, technology matching, and feasibility studies for ocean renewable energy installations

Development of an integrated multi-site & multi-device rapid evaluation tool for tidal energy planning

This work presents a novel evaluation tool that provides a rapid and less tedious approach for those involved in tidal energy planning. Site-Device matching, which is the “pairing” of appropriate device(s) to maximize the allowable energy extracted from a given site, is a crucial decision support process. The Tidal Resource Investigation, Device and Energy Tool (TRIDEnT) integrates resource assessment, power estimation, site-device matching, energy density mapping, and device suitability capabilities. TRIDEnT was prototyped in Matlab™ and currently uses hydrodynamic simulation inputs exported from DELFT3D™. Using TRIDEnT, the relative suitability of ten candidate devices are studied in four selected sites in the Philippines with annual energy yield, levelized cost of energy, capacity, and availability as criteria