Author RSSThe solar PV Value Propostion
The solar PV Value Propostion
Solar photovoltaics (PV) offers the U.S. a material source of high-value energy. It is an attractive part of the U.S. energy portfolio for an array of reasons which include customer value, as well as benefits from an envir...
Solar Energy in Spain
Solar Energy in Spain
Spain is forging ahead with plans to build concentrating solar power plants, establishing the country and Spanish companies as world leaders in the emerging field. At the same time, the number of installed photovoltaic systems is ...
Types of Solar Water Heaters
Types of Solar Water Heaters
Solar water heaters can be either active or passive. An active system uses an electric pump to circulate the heat-transfer fluid; a passive system has no pump. The amount of hot water a solar water heater produces depends o...
Basic Information on Solar Water Heating
Basic Information on Solar Water Heating
This publication provides basic information on the components and types of solar water heaters currently available and the economic and environmental benefits of owning a system.
Although the publication doe...
Producing your own power
Producing your own power
The first step to designing a renewable energy system is to conduct a Load Evaluation to determine what appliances you will be using, for how long each day and week, and how much energy they will use. The Load Evaluation is the...
Living “Off Grid” – Part 2
Living “Off Grid” – Part 2
Living “off grid” means you are not connected to a utility company power line, the electrical grid. You must produce your own electrical power to meet your needs. This can be a challenging and rewarding experience!
Refrige...
10 Good Reasons to switch to solar photovoltaic electricity
10 Good Reasons to switch to solar photovoltaic electricity
Photovoltaic is emerging as a major power source due to its numerous environmental and economic benefits and proven reliability.
'Photovoltaic' is a marriage of two words: 'photo', from Gre...
5 uses of solar energy
5 uses of solar energy
Our earth gets most of its energy from the sun. We call this energy solar energy. Sol means sun. Solar energy travels from the sun to the earth in rays. Some are light rays that we can see. Some are rays we can't see, like x-rays...
About urbane wind turbine investment
About urbane wind turbine investment
These costs consist of: complete UWT installation including the engineering, safety measures, monitoring, supporting construction, transport and mounting, proof of operation (commissioning) and the acceptance. Likel...
Understanding & Using Solar DC-AC Inverters – Part 3
Understanding & Using Solar DC-AC Inverters - Part 3
Capacitive loading
Actually there.s a different kind of problem with many kinds of fluorescent light assembly: not so much inductive loading, but capacitive loading.
Although a standard fluoro li...
What is Homemade Solar Energy?
Solar Energy
What is Homemade Solar Energy?
Every day, the sun radiates (sends out) an enormous amount of energy—called solar energy. It radiates more energy in one second than the world has used since time began. This energy comes from within the s...
The Aerodynamics Of The Wind Turbine – Part 2
The Aerodynamics Of The Wind Turbine - Part 2
WIND TURBINE BLADES BEHAVE IN THE SAME WAY
Returning to the wind turbine blade, just as in the situation for the cyclist, we can observe the aerodynamic and force diagrams in two different situations,
w...
The Aerodynamics Of The Wind Turbine – Part 1
The Aerodynamics Of The Wind Turbine - Part 1
The three bladed rotor is the most important and most visible part of the wind turbine. It is through the rotor that the energy of the wind is transformed into mechanical energy that turns the main shaft of...
What is Wind Energy?
What is Wind Energy?
Wind is simply air in motion. It is caused by the uneven heating of the earth's surface by radiant energy from the sun. Since the earth's surface is made of very different types of land and water, it absorbs the sun's energy at dif...
Green Living - Taking those first small steps
Green Living - Taking those first small steps
Making small changes as and when you can puts you firmly on the road to
living a much greener lifestyle. Trying to jump into it all at once can be counterproductive, in fact, because the subject area is im...