Tidal energy technologies are constantly being developed to meet our ever increasing energy needs and reduce our fossil fuel footprint. Several technologies have emerged to harness the energy of the seas from hydrokinetic tidal turbines in open water to submerged tidal stream devices. While renewable forms of energy from our oceans are important for a low-carbon sustainable future, their positioning along the coastline and use must not have a negative impact on the local marine ecosystem, its wildlife or the environment. Tidal energy from the sea is a green technology and a promising sources of renewable energy globally
Grey water and wastewater recycling has many uses in both the home and garden. With increased pressure on the world’s freshwater sources, climate change, population growth and water scarcity, there is a growing need to manage water resources in a more sustainable manner. The use of recycled water which was previously considered unusable has become an increasingly important source of water for irrigation and garden use. Waste water collected from roofs, showers, baths, washbasins, and washing machines can all be reused as greywater both reducing the amount of freshwater consumption, but also the volume of water discharged into the sewerage system
Geothermically heated waters have been used over thousands of years for bathing and healing in an attempt to cure numerous health related issues. Geothermal waters are associated with active areas of volcanic activity were rainwater that has percolated down major faults and fractures is heated by molten rocks at great depths in the crust before being returned to the surface naturally to form hot pools and springs. The temperature range of geothermally heated water depends on the heat flow and the geological setting ranging from warm water at low pressures to very hot geyser springs were the water explodes out of the ground at high pressures accompanied by steam
Solar Still is one of the best and most economical ways to distill water using the sun’s solar energy. The simplicity of the solar still is that produces clean water for drinking, cooking, and other such domestic purposes by using the sun’s solar radiation to evaporate and condensate dirty or salty water onto an inclined glass plate without the need for filters or electricity
Eco-friendly ways of garden watering and tips to help care for both your lawn and the environment at the same time. While gardening is a relating and enjoyable part of owning a home, it is by nature an eco-friendly activity as well. Installing rainwater harvesting barrels and butts will not only save on water, but also prevent erosion and flooding. Waste water can be used to give your garden and lawn a soaking during the coolest part of the day, allowing the water to seep into the ground before it evaporates
Rainwater harvesting is a sustainable strategy that saves and reuses rainwater for use in the garden or home reducing the demand on clean drinking water. Rainwater and storm water runoff from roofs or impermeable paved areas is collected in rainwater tanks or containers for consumption in the garden. Rainwater harvesting is dependent on both run-off area and the environmental weather conditions of the collected rain water but rainwater harvesting continues to be a sustainable solution for most gardeners.
Freshwater production technologies can help sustain all the life here on Earth with access to clean drinkable freshwater supplies being a major human need. Water is the most essential ingredient for our bodies so having access to fresh clean drinking water is vital. Desalination plants and large scale solar stills are being installed and used all over the world in order to satisfy the freshwater demand in countries where access to fresh clean drinking water can sometimes be a challenge
Tidal Fence energy is a tidal energy technology which uses tidal currents to generate power. Tidal fence or tidal current technologies harness the energy of tidal currents and tidal streams to generate renewable, pollution free electricity on both the incoming and outgoing tides. Large underwater turbines are used for harnessing the tidal power to generate electricity. Reciprocating tidal current devices use hydrofoil type blades which move up and down as the tidal currents flow on either side of the blade
Tidal energy devices and technologies use the power of the oceans to generate renewable forms of energy and are therefore important for a low-carbon future, Tidal energy devices do not alter the worlds climate or have have any harmful effect on human health or our ecosystem, and are less damaging to the environment than conventional means of energy generation. The ocean stores a vast amount of energy that can be harvested and tidal stream devices extract the energy from the oceans tides by using its continuously moving currents to rotate large underwater turbines
Geothermal heat pumps harness the renewable energy sources deep underground for heating and cooling purposes. Geothermal or ground-source heat pumps circulate water or a working fluid around loops of pipes buried in the ground. The water or fluid is heated up by the warm conditions of the soil deep underground before being passed through a heat exchanger to extract the heat to provide space or water heating. By reversing the operation of geothermal heat pumps, the heat of summer months inside a building can be captured and returned back underground in a process called geothermal cooling
