Pumps are critical to irrigation and communal water supply systems in rural economies. However, in many parts of the world, plugging into a reliable local power grid is not always an option. Nearly one-fifth of the world's population—1.6 billion people—lives without access to electricity. According to the U.N., agriculture accounts for 70 percent of global freshwater withdrawals—a harsh reality when considering the amount and consistency of power needed to obtain this water. In rural areas of countries such as India, Pakistan, South Africa, Bangladesh and Yemen, continuous access to the electric grid is restricted. Most of the electricity is produced with diesel fuel. These diesel generators cause noise, environmental pollution and are costly to operate—especially as water demand rises during the growing season and fuel prices spike.
Solar Versus Diesel
Solar pumping systems are a practical solution to water scarcity in these communities. In addition to irrigation, solar pumping systems are used in community water supply, fish farming and agriculture, forestry, and wastewater treatment engineering. The systems are also becoming more popular for use in municipal engineering, city parks, tourist sites, resorts, and even landscapes and fountains in residential areas. Solar pumping delivers several benefits over diesel:- Better return on investment
- Low maintenance
- No periodic tariff increases
- No dependency on often unreliable grid power
- No environmental pollution
- Carbon credits savings