Energy is a basic human need and makes the world go round. Without energy, everything would come to a standstill. It is indispensable to foster human development and economic growth with a secure, affordable, reliable, clean and sustainable energy supply. Today we are facing huge challenges: global warming, depleting natural resources, population growth, increasing energy demand, rising energy prices and unequal distribution of energy sources. All of these factors contribute to the urgent need to transform the energy sector, which primarily relies on fossil fuels, to one that uses renewable energies and energy efficient technologies. Renewable energy is one of the key solutions to the current challenges facing the world’s energy future. Many countries already foster the production and use of renewable energy through different approaches on a political and economic level as they recognise the urgent need to change the current energy path. The current use of renewable energy, however, is still limited in spite of its vast potential. The obstacles are manifold: lengthy permitting procedures, import tariffs and technical barriers, insecure financing of renewable energy projects and insufficient awareness of the opportunities of renewable energy. This is where Global Call network Renewable Energy company – comes in. Mandated by specialist company's worldwide, GCN aims at becoming the main driving force in promoting a rapid transition towards the widespread and sustainable use of renewable energy on a global scale. Acting as the global voice for renewable energies, GCN will provide practical advice and support for both industrialized and developing countries, help them improve their regulatory frameworks and build capacity. The company's will facilitate access to all relevant information including reliable data on the potential of renewable energy, best practices, effective financial mechanisms and state-of-the-art technological expertise.

Renewable energy – an answer to urgent challenges Renewable energy presents an attractive and rewarding solution to the increasing global energy demand, global warming, and rising energy prices. GCN strongly promotes the use and the dissemination of renewable energies, emphasising the many advantages inherent to these energy forms. Increasing global energy demand Countries worldwide are experiencing rapid economic expansion and industrialisation, while the world’s population is predicted to reach 9.0 billion by 2050.1 These two factors mean increased demand for energy. If governments do not change their current policies, the world’s energy needs could increase by 50 percent or more by 2030.2 Until now, these demands have been satisfied largely by fossil energy sources. However, the limited resources are rapidly decreasing, while their use continues to damage the environment, people’s health and the Earth’s climate. Over 1.6 billion people currently have no access to electricity and more than 2 billion rely on wood and dung for their energy needs.3 Traditional biomass is often used in an inefficient and non-sustainable way as an energy source, leading to severe implications for human health and the environment. 4 Building conventional grids to supply rural areas with electricity is often prohibitively expensive. Thus, local populations need to be supplied with energy that combines decentralised and centralised supply structures..

Using renewable energy: guarantee of energy supply Even substantial increases in energy demand can be covered with wind, solar and other sources of renewable energy. The potential energy from solar radiation exceeds human energy needs more than a thousand times over. Technical progress has made use of these resources and considerably accelerated in recent years. Renewable energy technologies offer increasingly competitive alternatives to fossil and nuclear fuels. Sources of renewable energy are limitless, universally available and able to meet the need for stand-alone energy solutions in rural areas. Even isolated regions can receive energy supplies, and thus gain access to development, as renewable energies can be used far from centralised electricity systems. Renewable energies reduce human dependence on rapidly diminishing fossil fuel resources. Furthermore, they diversify and increase domestic supply, thereby saving costs for ever more expensive imports of conventional fuels. Renewable energies can meet the demand for electricity, satisfy heating and cooling needs and provide propulsion for vehicles without harming the environment

Global warming – If growing demands for fossil fuels continue, greenhouse gas emissions will increase up to 60 percent by 2030. This could lead to a completely unsustainable temperature rise of about 5°C.5 The United Nations (UN) Climate Change Conference in Bali in 2007 again stressed the necessity to limit global warming to no more than 2°C. The 4th Assessment Report of the Intergovernmental Panel on Climate Change (IPCC) concludes that in order not to exceed this ceiling, global emissions need to decrease by at least 50 percent by 2050. Action must be taken in order to change current trends. The Stern Report estimates that without swift action, economic losses due to climate change could reach 20 percent of global Gross Domestic Product (GDP) each year.6 Using renewable energy: stabilising the climate In addition to energy efficiency, increasing the use of renewable energy will be an essential factor in mitigating climate change. In Germany, for example, the use of renewable energy prevented 115 million tonnes of greenhouse gas emissions in 2007.7 Renewable energy that is produced and used in a sustainable manner relieves the pressure on the environment and human health. Renewable energies help mitigate the economic impact of climate change. The costs resulting from damages to humans and the environment caused by the overall use of energy are currently not included in energy prices. Costs of electricity generated by modern coal technology, for instance, are estimated to range between six and eight €-Cent/kWh(*), whereas they are only about 0.5 €-Cent/kWh in the case of renewable energy.8 If external costs were included in the current energy prices, renewable energy would already be highly competitive. (*) Kilowatt hours (kWh): Measure for energy corresponding to the e t ica power of one k lowat (1000 W at ) app ied lec r l i t ts l fo the dura ion of one hour (1 k W x 1 hour . r t ) 3. G CN contributes to overcoming obstacles Many obstacles remain to the widespread use of renewable energy. Low public awareness, market distortions caused by governments in favour of subsidising conventional energy sources, ineffective political frameworks, inadequate technical know-how, misinformation – all these are major barriers to increasing the share of renewable energy in our total energy consumption.

Global Call Network, , is the professional supplier of small wind turbine generators. After 9 years' development, our company now in direct relation with large numbers of professional personnel, advanced manufacturing equipments and examination facilities with an integrated service system of design, manufacture, installation, debugging, marketing and after-sales service etc for wind turbines. We design, produce and sell Wind Turbine generators ranging from 300W, 500W, 1KW, 2KW, 3KW, 5KW, 10KW and 20KW. We have got CE and ISO 9001:2000 certificates for the wind turbines. Due to good quality, the products have already taken up the majority of domestic market and have been exported to more than 70 countries and areas, saying Britain, France, Hungary, Latvia, Russia, South America, South Africa, USA, Canada, New Zealand, India etc, and we got high comments and reputation from the end users. Furthermore, through years of development, we have taken the leading role in the line of sister manufacturing small wind turbine generators . Whole-digitalized controlling system has been achieved through the appliance of anemoscope and dogvane in wind turbine generator of 3KW, 5KW, 10KW and 20KW developed by our partners. The generator has been adopted low-torque starting technique with start-up wind speed 2m/s. The appliance of several new technologies contributes to the simplification of installation procedures, reduction of taking room, advancement of electric efficiency, along with enhancement of stability and security, received warm welcome from customers both domestic and aboard. In addition, based on the 9 years’ experience of developing and manufacturing wind turbine generator, we develop the Wind-speed and Wind-direction Data Acquisition System and 2000W On-grid System. Meanwhile, our company also engages into sister manufacturing and selling blades made of nylon, carbon fiber and glass fiber. Welcome to enjoy wonderful wind turbines of our company-the real green power and environment-friendly power

CE, ISO Certificated Wind Turbine Generator

Technical data sheets of 500w wind generator
Technical data sheets of 1000w wind generator
Technical data sheets of 2000w wind generator
Technical data sheets of 3000w wind generator
Technical data sheets of 5000w wind generator
Technical data sheets of 10000w wind generator
Technical data sheets of 20000w wind generator
Questions for wind turbines Q: How to calculate the wattage of my house/farm from the hydro bill? A: Usually 60 days for the bill cycle, 24 hours per day, let's say you paid for 1700 KWH, the mean KW is 1700/60/24 = 1.18KW, so you need roughly 1.18 * 1.2 = 1.42kw ， so 2KW is model for your house/farm, 1.2 is the factor we use for this calculation if you want to have your air conditioner, dryer, washer, fridge, ceiling fans, water pump, microwave ovens or other appliances with inductive loads inside connected with off-grid wind turbine, the start-up current of these appliances are 5 to 7 times bigger than the running current for about 2 minutes, these appliances request more power to start, it is critical for off-grid wind turbines, so you if choose off-grid wind turbines, you choose from 2kw * 3 = 6kw and up, to make sure these appliances will work properly the actual yield of the wind turbine depends on the wind speed in your area if you choose on-grid wind turbine, you can get the excessive power you request from the grid, you can choose from 2KW to 10KW wind turbine in according to your budget. If you have equipment that is labeled as BTU, not kw Btu(British thermal unit) is a measure of energy while kw is a measure of power. Use the following for conversion. 10000 Btu/hour = 2.93 kw 1000 Btu/minute = 17. 58 kw 1 Btu/second = 1.055 kw 1 hp = 1.341kw Q: How many batteries I need for my wind turbines? A: The batteries you need depends on the hours that need to use per day, let us assume that, you use 6 hours per day, the capacity of wind turbine is 5000w, the DC output voltage for the controller is 240Vdc the unit battery capacity will be 5000W x 6H x 1.67 / 240V = 208.75 AH or bigger, 1.67 is the factor we use for the calculation if you use 300 AH 12V batteries, you need 240V/12V = 20 units. Q: Where can I find the chart for the wind speed and wing turbine yield? A: Please find it in our catalogue and technical forms. Q: If I need 5KW for my house, do I choose a 5KW wind turbine? A: You need to check the mean wind speed of your area, and the tower height, terrain, location of the wind turbine will dramatically affect the yield of the wind turbine If the wind speed for your area is more than 3m/s or 10.8km/h or 6.75mph for more than 3000 hours annually, congratulations, you can enjoy the savings to use our wind turbines, if not, please check our solar panels if you have enough sun shine. then you check the rated wind speed for the wind turbine, for 5KW, it is 10m/s, or 36km/h or 22.5mph, you can find the wind speed requirements from here if you have the mean wind speed bigger than 10m/s, your get the full 5KW from the wind turbine if you have the mean wind speed 7m/s, you get roughly 5KW x 75% = 3.75KW from wind turbine, you can choose a bigger wind turbine in according to your budget if you have the mean wind speed less than 2m/s, the wind turbine is not your choice, you may consider solar power. you can choose to use solar power with your wind turbine, or on-grid wind turbine to get a fully coverage of your electricity consumption. Q: How reliable are wind turbines? Will I have to perform much maintenance? Most small turbines have very few moving parts and do not require any regular maintenance. They are designed for a long life (up to 20 years) and operate completely automatically. Q: How to convert m/s to KM/H or MPH? A: 1m/s = 3.6 KM/H = 2.25 MPH. Q: Do wind turbines make noise or interfere with TV reception? The medium-sized wind turbines do make some noise (under 60db), but not enough to be found objectionable by most people. A typical residential wind system makes less noise than the average washing machine. Wind turbines do not interfere with TV reception. Q: Do you have CE for your wind turbines? A: Yes, we have CE for our horizontal wind turbines up to 20kw, For on-grid inverters, we have CE for up to 6kw. Q: How do wind turbines perform as an investment? A: The wind system will usually recoup its investment through utility savings within 3 to 5 years and after that the electricity it produces will be virtually free. Over the long term, a wind turbine is a good investment because a well-sited wind system increases property value, similar to any other home improvement. Many people buy wind systems in preparation for their retirement because they don’t want to be subject to unpredictable increases in utility rates. Q: What if I can use both wind turbine and solar power in my area? A: Because the solar panel is more expensive than wind turbine, so you should use as more wind as possible. for wind speed less than 4m/s (14.5km/h or 9mph), 90% solar, 10% wind for wind speed more than 4m/s (14.5km/h or 9mph) but less than 5.36m/s (19.3km/h or 12mph), 50% solar, 50% wind for wind speed more than 5.36m/s (19.3km/h or 12mph), 30% solar, 70% wind. If you need the capacity bigger than 6kw, you can couple two 6kw inverters.