We must differentiate between conventional energy sources, perishable carved from the bark of the Earth (crude oil, coal and natural gas, uranium used to fuel nuclear reactors is considered degradable alternative energy source), from renewable alternative energy sources.
Renewable energy is energy produced from a renewable source which is not consumed in a reasonable time.
Samples of renewable energy sources: solar radiation, tides, waves, wind, biomass, hydroelectric, geothermal, etc.
Yarok Natural energy Corporation aims to encourage use of renewable energy and to implement energy efficiency in public institutions, business groups and elite private homes.
Renewable energy includes the following areas:
The economic value of an energy source based on solar energy determined by the following variables:
- The cost of the facility.
- Alternative energy sources available nearby.
- The location of the site, relative to the Sun and relative to the energy end user.
- cost of energy storage.
- The cost of other energy sources to back up (eg at night).
- Maintenance cost.
Utilization of solar energy in Israel
- Israel is one of the most advanced solar energy thermal energy utilization for domestic use, mainly through solar water heaters. By law, all obligated building new solar water heaters on the roof.
- Since 2008, Israel installed photovoltaic installations – and generate electricity using solar radiation. To date are 0.8% of Israel’s electricity production.
- Israel carried out long-term study of solar energy utilization methods for solar energy department at the Weizmann Institute
Refers to energy from organic material (plant and animal). Organic matter, in general is called biomass and is used as a way to generate energy.
All material from flora and fauna are included as biomass.Biomass Contribution as a global energy source – biomass energy is about 15% of the energy consumption in the world.
Biomass is mostly used in a simple combustion process (mainly in underdeveloped countries), and some making biomass fuel.
Wind energy is energy derived from exploiting gusts (kinetic energy) for the purpose of motivating other mechanical systems such as turbines used to power generators to produce. electricity Wind energy is an alternative energy source for the highest growth rate at the beginning of the 21st century.
The economic viability of an energy source based on wind set the following variables:
- Relation to the wind turbine location and relation to surrounding towns.
- Wind regime in the region – wind power price is determined by the strength of the wind. Produced power relations cube of wind speed.
The main economic problem associated with wind turbines is the high initial investment of purchasing and installing the turbines which is a high percentage (up to 80%) of the total expenditures required and extends for a relatively short time. For comparison – the main spending power plants operating on fossil fuels are the fuels and their payment extends for a long time, which affected over the life of the station and the amount of consumption.
Advantage of wind energy utilization is available in the wind during periods when demand is high. According to estimates provided official publication of the State of Israel in 1998, can be used in amount of 600 MW (from 100 wind farms supplied Tel doughy).
Because of the economic competitiveness of power generation technology wind energy, the increase in demand for electricity and renewable energy policy effectively implemented in several markets, the future of wind energy utilization looks promising. Wind energy utilization probably increases over time due to so contribute to strengthening the global economy with clean energy source, works hi – tech and insurance against fluctuations in electricity prices and electricity supply deficit.
It is no secret that Israel’s energy economy is in crisis. Demand is continually increasing and threatens to create a real shortage of electricity.
According to the Ministry of Infrastructure forecast, continuing the upward trend in electricity consumption will lead to a doubling of consumption by 2025, Israel adopted an alternative policy of reducing electricity demand in the economy, and promotes energy efficiency.
Energy efficiency is creating a source of energy for everything, energy efficiency provides virtually the same energy required to produce the output instead of increasing the number of power production.
Energy efficiency can be achieved in part by reducing waste, efficient use of electricity consumers and technological means for optimizing consumption.