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Block 1 Road 1, Federal Housing Estate Ogbor Hill, Aba, Abia State, Nigeria Zip: 450001 | Phone: 234-803 323 4516 | rev@solartimeelectric.net

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SOLARTIME ELECTRIC LIMITED is a Nigerian engineering company in the business of design, installation and maintenance of renewable electric energy systems. This covers the use of solar modules, wind generators, from Southwest Windpower – whom we represent on a national basis - and/or mini hydro to power DC load such as bulbs for lighting etc. We also use a range of power inverters from Xantrex or Outback, who are both pioneers and world leaders in the industry, to convert the available DC power to AC in order to also power AC load such as TV, refrigerators, lighting bulbs, home electronic appliances, hand drills etc. The company has installed numerous inverter backup power systems and grid-tied as well as stand-alone solar systems in almost all parts of Nigeria.

Our sustainable CSP/CPV hybrid green electricity is a solution to erratic grid electricity supply. To better address the promise of a hybrid solar panel, we offer you a low-cost hybrid system. Hybrid solar energy systems collect both electricity and heat. Mirrors reflect sunlight onto an absorber covered with photovoltaic cells, converting about 18% of the energy to electricity. The remaining solar energy is captured as heat by coolant that cools the cells - capturing 55% of the sun’s energy. All told, hybrids capture 4 times more energy than flat plate PV, 75% of total sunlight energy. Using sandwich technology for mirror fabrication, a hybrid absorber to collect both electricity and heat, and robust gear motors to assure accurate sun tracking, we are able to produce highly efficient, yet low cost, modules. Like other hybrids, it uses mirrors to reflect sunlight into its absorber. Bonded to the absorber are photovoltaic cells that convert solar energy to electricity. Coolant pumped though the absorber cools the cells so they operate more efficiently.

 

Each module comes with a “storage shed” that stores heat and electricity for when the sun isn’t shining. Electricity is stored in batteries in the shed and heat is stored in an insulated Heat Transfer Fluid (HTF) tank. A small computer, called a micro-controller, tracks the sun as it changes position through the day. By rotating the mirrors to face downwards, they are protected at night or in bad weather. Like other hybrids, our hybrid captures about 75% of the sun’s energy. As in a flat plate PV system, a quarter of this energy is electricity. Unlike flat plate PV, three quarters of the captured energy is heat. Instead of throwing away most of the sun’s energy, it is captured. In many cases, its captured heat is as valuable as its electricity.

The module faces south and its mirrors are tilted at an angle equal to the latitude of the installation. While this orientation and tilt collects the most energy, other orientations from east facing to west facing can still capture the bulk of the sun’s energy. This installation above is a ground mount where the collector and its shed are installed at ground level. However, the panel is light enough at 3 pounds per square foot (15 kg/m2) to mount on a roof.

No battery is required as storage is done on concrete storage to be constructed at the site. We need to create a flat concrete platform to acquire a flat concrete slab of 40sqm (or 6.3m x 6.3m) to hold the 100 Collector Blocks as in photo below.

 

1 Unit Collector Block

 

This is a low cost mass-produced solar module that extracts both electricity and heat from the sun. One or more reflectors held by a frame reflect the sun's heat into an absorber. Each reflector rotates about its axle to keep its reflected solar energy focused on the absorber. In one embodiment, solar heat is focused to heat fluid that flows to thermodynamic engines that convert the heat to electricity. Engine waste heat is also captured for use as building heat, home hot water or industrial process heat. In another embodiment, solar heat is focused onto photovoltaic devices that directly convert light into electricity.

Many solar and wind powered water borehole installations have also been installed by the company in various parts of Nigeria. SOLARTIME ELECTRIC LIMITED is responsible for the installation of numerous solar streetlight projects in Nigeria. The company has held consultancy positions in Senegal for a 150MW phased CSP (Concentrator Solar Power) project for Senelec.

As Authorized Service Center, owners of Xantrex Technologies Inc., the company handles all equipment warranty issues in Nigeria on behalf of Schneider Electric Renewables (France), Victron Energy (Netherlands), Southwest Windpower Inc. (Flagstaff Arizona USA) and Eco Green Energy (China). 

Saturday, December 19, 2015

GLOBAL SEARCH FOR ALTERNATIVES TO OIL AND GAS IMPLICATIONS TO THE NIGERIAN ECONOMY The 2008 Nigerian Network Operators Group (NgNOG) National Conference on ICTs & Education Venue/ Host: University of Lagos

Oil and Gas are the major fuels that power the global industrial drive. As a result of a lack of focus on the implications of the indiscriminate use of these fuels our planet has suffered grave adversity consequently. The bi-products of oil and gas are emissions that deplete the protective ozone layer.

 

Global Warming: This layer is a divine protection that limits the heat retention on planet earth and consequently the temperature of the planet. With its depletion the normal temperatures of the earth are now higher than ever before. The result is that critical temperatures that prevent the melting of the Arctic and Antarctic snow are now exceeded. Thus large slabs and chunks of ice are melted in these regions bringing about the swelling of ocean beds with its resultant rise in global sea level. Unprecedented floods are now recorded as a consequence of this. Global climatic changes are now experienced.

 

Alternative Fuels: The search for alternative fuels and energy sources has become imperative if mankind is to save his planet from an impending doom. A lot of research efforts have been initiated in this regard with a view to developing acceptable alternatives to fossil fuels that will not result in dangerous, unacceptable emissions as bi-product. Solar energy, wind energy, geo-thermal, hydro-electric energy and bio-gas are but some examples of the alternative energy sources being proposed.

 

Research Results: Quite a few rewarding results have been obtained from the global alternative energy research efforts, each of which comes with its limitations. Wind energy is a cost effective energy option that is steadily marching towards matching grid power in unit energy cost. Its limitation however is that it is only available in areas where the wind resources are available. Hydro-electricity also can only be obtained in places where the topology allows for sufficient drop in gradient of water flow to allow for a cost effective harvest of the resultant potential energy difference. Solar energy research efforts look promising as the most reliable major global energy source. It appears to be the natural choice as the earth is daily bombarded with this energy source on an unfailing daily basis. It was possible to initially convert only fifteen percent of the energy that strikes the surface of the panel to usable electricity. The CPV, Concentrated Photovoltaic and CSP, Concentrated Solar Power, technologies have greatly improved the energy harvest of the solar energy technology. These operate by using powerful lenses to focus the sun rays on special solar panels. The energy harvest instantly increases, albeit accompanied by an astronomical rise in the panel surface temperature. However, more recent experiments, using the nanowire technology in CPV have demonstrated that more than eighty five percent of the solar energy striking the panel surface is harvestable as usable electricity. By using a similar technique which they used in cooling micro-processors in computers, IBM was able to demonstrate the ability to perfectly check the overheating problem, thereby rendering the nanowire solar technology a successful research effort.

 

Automobile Alternative Energy Options: Various alternative energy options have been proposed and even successfully demonstrated for powering the automobile, which is a major consumer of fossil fuel. Electric cars have been built and tested but they have the limitation that after about 200 kilometers their batteries will need to be recharged for about 6 hours. Hybrid cars have been built to reduce the consumption of fossil fuel. These run on engines that can be powered by the use of both fossil fuel and DC electricity. Therefore they are still movable using fossil fuel when the batteries are discharged and in need of recharging.

There is now an available technology that allows one to run his automobile using regular tap water. The technology involves the use of the energy liberated when the water molecule H2O is broken down into HHO.

 

Renewable Energy as a Threat to the Nigerian Economy: With the amount of research efforts being put in the field of alternative energy it is only a matter of time before permanent solutions are found to the global energy problems. The global need to find acceptable alternative energy sources is urgent as industry experts predict prices of up to $500 per barrel within a few years. These research efforts and the rewarding results give oil-producing countries like ours notice to find alternative economic earning sources to oil. Nigeria is a special case since there is no other meaningful revenue earner for our economy than oil and gas. Oil and gas are responsible for more than 80% of our national earnings. Therefore unless we diversify our economy very urgently we may soon find ourselves in positions where our economy will run the risk of collapse.

 

Urgent Call: The call is both immediate and urgent. Something should be done now. With all the writings on the wall it is pathetic to note that the managers of the Nigerian economy appear unaware of the impending danger. Otherwise, how can one explain the sharing of the excess crude revenue to state and local governments who do not have confirmed programs that are designed to buffer the imminent crash that is bound to come when the developed countries cease to have need for our oil? Like the biblical example of Egypt we ought to store up our national resources during this period of plenty knowing that the days of scarcity loom ahead!

 

Recommendations: This is the time to implement the plans for a diversified economy. Our power supply system should be urgently remedied as a matter of national emergency and all the bottlenecks that prevented massive industrialization should be removed. It should be mandatory that 30% of the excess profits that are being annually declared by the banks be loaned to industrial ventures. VAT and other tax exemptions should be given as incentives for the importation of industrial plants. The attitude of government at the executive, legislative and judicial arms should be visibly friendly to both local and foreign investors.

 

If these are implemented there is no reason why we will not become another China in this generation. After all we can boast of cheaper local labor than them. Our youths are teaming with a desire to have some form of employment.

 

Another suggestion is an appeal to those who have starched money abroad to repatriate these for industrial development. This appeal can come as incentives for industrialization efforts.

 

Also, the six geo-political zones of Nigeria can engage themselves in a healthy competition for which will make the best contribution towards economic development. A more realistic and radical revenue sharing formula may also help to ginger governments towards self development. Unviable states or local governments may have to be absorbed by viable ones as there will no longer be any oil money to share. It should all be a matter of survival.

 

Conclusion: Whatever has to be done should be done now since the world has already given notice by the development of alternative energy sources, that its need of oil and gas will soon be so negligible that oil prices will crash to near zero.

 

REV. UKAEGBU OGWO

MD/CE, Solartime Electric Ltd.

Abuja: #2 Hombori Street, Wuse 11, Abuja

Aba: Block 1 Road 1, Federal Housing Estate, Ogbor-Hill,

P. O. Box 4674 Aba, Abia State, Nigeria.

Tel.: 082-480 165

Mobile: 0803 323 4516

E-mail:  rev@solartimeelectric.net;

Website: www.solartimeelectric.net
6:38 pm cet 

2015.12.01

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SOLARTIME ELECTRIC LIMITED is a Nigerian engineering company in the business of design, installation and maintenance of renewable electric energy systems. This covers the use of solar modules, wind generators, from Southwest Windpower – whom we represent on a national basis - and/or mini hydro to power DC load such as bulbs for lighting etc. We also use a range of power inverters from Xantrex or Outback, who are both pioneers and world leaders in the industry, to convert the available DC power to AC in order to also power AC load such as TV, refrigerators, lighting bulbs, home electronic appliances, hand drills etc. The company has installed numerous inverter backup power systems and grid-tied as well as stand-alone solar systems in almost all parts of Nigeria.

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Rev. Ukaegbu Ogwo, a power engineer, trained in University of Ife, Ile-Ife, now Obafemi Awolowo University, Ile-Ife, Osun State Nigeria is the promoter of the business. Rev. Ogwo has undertaken a number of specialized training, first under the Hillrich/Trace Engineering partnership and then under the Xantrex/African Energy partnership initiative. He also represented SOLARTIME ELECTRIC LIMITED in the global dealership training that qualified SOLARTIME ELECTRIC LIMITED to be appointed as the Nigerian Dealer/Service Center for Southwest Windpower Inc. of Flagstaff Arizona USA, a world leader in the domestic and medium range wind turbine industry. Rev. Ogwo has also undergone the Xantrex Authorized Service Centre training at the Xantrex facilities in Barcelona Spain. He is an Advocate Member of the American Wind Energy Association, AWEA and a member of the West North Carolina Green Building Council, WNCGBC. With his wealth of experience in the renewable electric energy industry, Rev. Ogwo is poise to take SOLARTIME ELECTRIC LTD. to much greater heights than are at present perceived.   

 

SERVICE AND MAINTENANCE

Solartime Electric Ltd is the Nigerian Dealer/Service Center for Southwest Windpower Inc. of Flagstaff Arizona USA, a world leader in the domestic and medium range wind turbine industry (http://www.windenergy.com). We are also an Authorized Service Centre to Schneider Electric Renewables.  

We are Authorized Service Center and Nigerian Distributor to Victron Energy of The Netherlands, http://www.victronenergy.com

Southwest Windpower appointed us as their West African Service Center. This gives us the exclusive edge of service and maintenance of our products over other operators. Our engineers are product-trained in the United States and Spain for the service and maintenance of our products. There is also the invaluable advantage that we have the exclusive privilege of stocking spares for the maintenance of all our installed systems.

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