The project name APC-PISYS is an acronym in Spanish which stands for “PIPO Systems - Isolated Augmented Absorber" (note: the original name in Spanish is Absorbedor Puntual Complementado de PIPO Systems). APC-PISYS is the first and only wave energy converter capable of harnessing the multiple forces present in the ocean and then converting the captured energy into electricity.

 

 



The APC-PISYS system is comprised of a series of submerged buoys of variable internal pressure that are connected individually to another buoy on the surface. It is a physically adaptive system that can react to external stimuli and respond to any situation that threatens its stability.

The APC-PISYS system is an innovative concept in the capture and conversion of offshore wave energy which be replicated to perform large-scale energy generation.

Groups of APC-PISYS buoys anchored off the coast of Galicia, Spain have an installed capacity of 1.25 megawatts. Future installations of the system in groups of 8 or 16 pairs of buoys will have the potential capacity to generate between 10 to 20 megawatts, which would accrue to generate between 30 to 60 gigawatts per year. This energy, when combined with a reverse osmosis desalination system, would have the capacity to purify 10 to 20 cubic hectometers of fresh water per year.

The future development of this type of energy system on a large scale requires the creation of Offshore Marine Wave Energy Farms. The principle differences with offshore wind farms are the imperceptible impact on the visual landscape of the APC-PISYS system and its negligible ecological impact.

 

There are many reasons why the process of replacing power generation from fossil fuels and other non-renewable or polluting sources of energy sources has begun. The world requires and demands a range of renewable technologies to meet its energy needs.

Hydroelectric, wind and biomass energy producing industries are growing, but there are other more profitable opportunities in alternative energy generation.

Wave energy capture is not a new concept, but it only recently that is has become feasible to benefit from the multiple applications made possible its generation, processing and distribution.

The Earth’s oceans offer a huge untapped source of energy, but the technology, infrastructure and other support needed to make use of it has not yet been put in place.

We face the shared institutional challenges of:

Creating a consistent market demand for sustainable energy supplies.
The offshore marine energy is renewable, constant and inexhaustible.
Securing alternative power supply.
Fossil fuels are becoming more difficult and expensive to obtain.
Building a new industry, that can be exported around the world.



Multiple converters of renewable marine that produce useful and abundant energy.
Seawater desalination plants which are self-sufficient, requiring no external energy or producing CO2 emissions.
Pumping stations which can transport seawater into tanks on land for hydroelectric generation.

Multiple energy generators that have their ocean wave energy capture supplemented by technologically advanced converters open the door to an unprecedented industrial development of offshore wave energy.

Single offshore wave energy converters still calculate their capacity in kilowatts and their generation in megawatt hours per year, while in advanced APC-PISYS systems, which are to be equipped with multiple generators and supplementary converters, capacity and generation will be calculated in megawatts of power and gigawats per year, respectively.

The irremediable difference between single and multiple converters is that the former can only capture individual forms of kinetic and potential wave energy while multiple converters capture them simultaneously and achieve complementary conversions.

With nearly three times the annual energy production capacity, multiple converters can cost three times more than the best of single converters. However, the APC-PISYS system, according to the measurements and data already obtained, produces up to 170% more energy than any single type converter at only 50% higher cost.