From bridge, road, railway and harbour construction to tunnels and treatment plants, we carry out all forms of civil work.
Whatever your construction or refurbishment needs, we can help you. We handle construction and refurbishment tasks of all kindsÂ from multi-storey buildings and shopping centre expansions to small alterations.
- Commercial construction
- Public Sector Construction
- Residential Construction
The company operates an extensive fleet of modern earthworks plant and equipment including excavators, dozers, graders, loaders, compaction equipment, trucks, crushers and asphalt and surfacing machinery. The fleet is well maintained, and the company retains a core of skilled individuals with solid experience in the road construction sector.
Work undertaken includes :
- Road construction
- Bridge construction
- Bulk earthworks
- Road rehabilitation
Civil engineering deals with the design, construction and maintenance of the physical and naturally built environment. Civil engineering takes place on all levels: in the public sector from municipal through to federal levels, and in the private sector from individual homeowners through to international companies.
Whether it is refurbishment of an office or commercial building, expansion of a shopping centre or a smaller alteration, we can help you. We have many years of experience with both small and large refurbishment tasks.
The energy source of LED solar street lights is based on the solar radiation converting solar energy during the day by using solar panels to charge the battery, providing the LED street light with the battery-powered lighting at night, the LED solar street light without complex and expensive pipeline laying is famous for security, clean energy, stable and reliable without manual operation, saving electricity.
Energy is an important guarantee for social and economic development, and vigorously develop renewable energy is the main way to start to solve the energy crisis. With the improvement of people’s living standards, the importance of environmental awareness and sustainable human development and health expanded, there is a dramatically demand for environmentally friendly energy-saving lamps.
LED solar street light advantage
- LED solar street lights use solar photovoltaic cells to provide electricity, solar energy is a new inexhaustible green energy. Make full use of solar energy resources contribute to ease the tense situation of conventional energy sources.
- Unlike ordinary street light, LED solar street light with simple and convenient installation and without piles of basic cabling and other projects just need a fixed base so that all the lines and control parts are placed in the lighthouse form a whole.
- There is a significantly low costs in operation and maintenance of LED solar lights. The whole system are automatically controlled, almost without human intervention, undoubtedly saving tons of maintenance costs.
LED solar street shortcomings
- Dispersion: the energy flux density is very low despite the total solar radiation sparing on earth’s surface is significantly greatt. On average, near the Tropic of Cancer, the irradiance of the solar radiation is largest at noonin on summer, the average solar on the 1 msquare meters vertical the sun direction received is about 1,000W; which is only about 200W if during the day and night throughout the year,not to mention roughly only half in the winter particularly only about 1/5 in cloudy day. Therefore, when the use of solar energy, it is necessary to install LED solar light with the collection and conversion equipment with a considerable area to get favorable power conversion, higher cost.
- Instability: Limited by day and night, season, geographic latitude and altitude and other natural conditions and the effects of sunny, cloudy, clouds, rain and other random factors, definitely, the solar irradiance at a certain ground is intermittent and very unstable, which gives large-scale application of solar energy more difficult. In order to make solar energy continuous, stable, and ultimately switch to an alternative energy which can compete with conventional energy sources, cutting the problem on storage energy is urgent priority, that is solar radiation stored up as much as possible during sunny day for the LED street light lighting up at night or rainy day.
- High cost: LED street lights and solar panels and batteries are expensive, plus the high demands of power facilities. With the development of energy saving technologies, these problems will be solved.