Researchers working on the project found that an eight by five centimetre plate of zirconium oxide can generate 0.9 V in laboratory conditions of 50% humidity. For scale, this is roughly the amount of electricity produced by half an AA battery. It is important to note, however, that the project is still in its infancy. Scientists are working on making the process more efficient. Current speculations expect hygroelectricity to be able to produce the same amount of electricity as a photovoltaic cell of the same size in the future.

How is it possible to create electricity from thin air?......It seems that the answer to this over-a-century-old question is the zirconium oxide. To create these cells, small, uniform nanoparticles of zirconium oxide are compressed into a sheet of material that has a uniform structure throughout, and a collection of channels or capillaries. This nanostructure produces electrical fields within the capillaries. These electrical fields separate charge from the water molecules in the atmosphere. This produces a cascade of physiochemical, physical and electrophysical processes that work to capture electrical energy. While this complex process does not quite produce electricity from thin air, it comes pretty close. Important to note, however, is that hygroelectricity requires atmospheric humidity to function. In areas where humidity is low, like very cold regions, the system will not produce electricity. 

What does the future of hygroelectricity look like?......Hygroelectricity, though a relatively new entrant to the renewable sphere, has the potential to provide renewable solutions to regions where other sources of renewable energy are not possible – like areas with little direct sunlight but plenty of rainfall. New renewables (like this infinite, invisible power source) continue to emerge, disrupting the renewable industry for the better. https://www.ecoticias.com/en/we-can-produce-energy-out-of-thin-air/12984

What Are the Different Types of Tidal Energy........There are three types of tidal energy technology........                 Stream: turbines are placed in tidal streams. The machines are large and can disrupt the tides. The size of the turbine and the location of the tidal stream will dictate the level of environmental impact.                                                  Barrage: a barrage (dam) is placed across a river, bay, or estuary. The barrage gates open as the tide rises and close at high tide, creating a lagoon. The water is then released through the turbines which spin a generator to create electricity. Barrages cause significant land disruption within the tidal range, and the change in water and salinity levels within the lagoon can harm plant and animal life. Also, turbines in barrages move fast and can kill marine life in their blades.                                                                                                                                                                                  Lagoon: a body of ocean water is partially enclosed by a man-made barrier. Lagoons function in the same manner as a barrage, but they generate continuous power and can also be constructed along a coastline. Lagoons provide a minimal level of environmental impact but also generate the least amount of energy. They can be constructed with natural materials like rock and would easily allow marine life to pass through.                                                                                                                         

What tidal energy is.......Tidal energy is defined as the conversion of the movement of ocean water volumes into electrical energy through the use of various tidal systems.                                                                                                  What the different types tidal energy are......The three types of tidal energy technology are stream, barrage, and lagoon systems.                                                                                                                                                                    How tidal energy works.......Tidal energy is generated when tidal turbines, barrages, and lagoons use the rise and fall of tides to produce electricity.                                                                                                                                                The global capacity of tidal energy......There are roughly 3,000 GW of energy stored in the world’s tides. South Korea, France, the United Kingdom, Canada, and Belgium are the top 5 tidal energy-producing countries taking advantage of this large energy-generating potential.                                                                                                            The carbon footprint of tidal energy........Estimates for the life-cycle global warming emission of tidal energy are below 22 grams (0.05 pounds) of CO2 equivalent per kWh of electricity produced.                                                            The environmental benefits of tidal energy......Tidal energy is a predictable, stable, and concentrated energy source that mitigates climate change, promotes energy independence, and creates jobs.                                                            The environmental drawbacks of tidal energy.......Tidal energy may negatively impact estuarine ecosystems via underwater noise pollution, habitat changes, and wildlife collisions with turbines.                                                              Tidal energy and climate change......Tidal energy combats climate change by mitigating the temperature rise, sea-level rise, ice melting, and ocean acidification associated with global warming.                                                                  How Does Tidal Energy Work.......Tidal energy is generated when tidal turbines, barrages, and lagoons use the rise and fall of tides to produce electricity.                                                                                                                                  How Does Tidal Energy Actually Produce Energy.......Tidal energy operates in the following way.....read on, there's much more       https://impactful.ninja/tidal-energy-explained/  

Other benefits of geothermal heat pumps include reduced operating and maintenance costs, a quiet and long-lasting system with good humidity control, and less energy demand to support a more resilient electric grid. Curious if a geothermal heat pump is right for you? The Department of Energy has helpful tips for choosing and installing. Networked Geothermal: Powering Campuses and Neighborhoods in Hot and Cold Climates......In addition to single-family homes and apartments, geothermal heat pumps have been successfully installed at universities, hospitals, commercial office parks, [high rises] and neighborhoods. They are particularly effective in network systems that connect multiple buildings through shared piping and which use energy from the ground, wastewater, and ponds, among other sources. These network systems can achieve more than 500 percent efficiency, meaning for every  unit of energy that goes in, five go out. These larger systems require infrastructure to be installed and maintained, fostering local jobs and growing the clean energy economy. They can transition whole communities onto geothermal at a time, creating economies of scale that bring energy costs down for all participants......read on            https://rmi.org/clean-energy-101-geothermal-heat-pumps/