Renewable energy
Energy storage
Energy storage is the capture of energy produced at one time for use at a later time. A device that…
Algae fuel
Algae fuel, algal biofuel, or algal oil is an alternative to liquid fossil fuels that uses algae as its source…
Renewable energy trends
Renewable energy flows involve natural phenomena such as sunlight, wind, tides, plant growth, and geothermal heat, as the International Energy…
Renewable energy
Renewable energy is energy that is collected from renewable resources, which are naturally replenished on a human timescale, such as…
Solar thermal collector
A solar thermal collector collects heat by absorbing sunlight. The term "solar collector" commonly refers to solar hot water panels,…
Alternative energy
Alternative energy is any energy source that is an alternative to fossil fuel. These alternatives are intended to address concerns…
Passive solar building system
Passive solar building system is increasingly becoming an independent style of architecture , which is formally in the tradition of…
Passive solar building design
In passive solar building design, windows, walls, and floors are made to collect, store, reflect, and distribute solar energy in…
Solar thermal energy
Solar thermal energy (STE) is a form of energy and a technology for harnessing solar energy to generate thermal energy…
Solar power by country
Many nations have installed significant solar power capacity into their electrical grids to supplement or provide an alternative to conventional…
Dye-sensitized solar cell
A dye-sensitized solar cell (DSSC, DSC, DYSC or Grätzel cell) is a low-cost solar cell belonging to the group of…
Copper indium gallium selenide
Copper indium gallium (di)selenide (CIGS) is a I-III-VI2 semiconductor material composed of copper, indium, gallium, and selenium. The material is…
Energy hierarchy
The Energy Hierarchy is a classification of energy options, prioritised to assist progress towards a more sustainable energy system. It…