--- title: "Roles in development; benefits of electrical energy" subject: "Utilization of Electrical Energy" chapter: 1 key: "semester_7/utilization_of_electrical_energy:roles-electrical-energy-develop-country-benefits" source: https://www.bctengineer.com/q/semester_7/utilization_of_electrical_energy/roles-electrical-energy-develop-country-benefits site: BCT Engineering --- # Roles in development; benefits of electrical energy Utilization of Electrical Energy · Chapter 1: Introduction - Asked in: 2071 Chaitra - Answer checked by Claude Opus 5.5 (high effort) on 2026-10-14 - Page: https://www.bctengineer.com/q/semester_7/utilization_of_electrical_energy/roles-electrical-energy-develop-country-benefits - Whole chapter: https://www.bctengineer.com/md/semester_7/utilization_of_electrical_energy/chapter-1 ## Question What are the roles of electrical energy to develop a country? Explain the benefits of electrical energy over other form of energy. ## Short answer Electrical energy underpins industrialization, agriculture, living standards, education, transport, communication, commerce, and rural development. It improves GDP and human development, replaces imported fuel, earns foreign exchange, and protects the environment. Benefits over other energy include easy transmission and control, cleanliness, high efficiency, and renewable local generation. ## Answer Electrical energy is a basic infrastructure for national development: industries, services, transport, health and education all depend on it. A rise in per-capita electricity consumption usually goes with a rise in GDP and living standard. #### Roles of electrical energy in developing a country 1. **Industrialisation**: powers motors, furnaces, welding, electrolysis and automation, enabling manufacturing and value-added products (cement, steel, food processing) and creating jobs. 2. **Agricultural growth**: electric irrigation pumps, cold storage, agro-processing raise productivity and farmers' income. 3. **Better living standards**: lighting, clean cooking, refrigeration, water supply and appliances improve health and comfort. 4. **Education and health**: lighting for study, computers, e-learning; hospital equipment and vaccine storage. 5. **Transport**: electric vehicles, railways and trolley buses reduce petroleum imports and urban pollution. 6. **Communication and IT**: mobile networks, internet, data centres support banking, e-governance and the service economy. 7. **Commerce and tourism**: hotels, offices, shopping centres, airports. 8. **Rural development**: rural electrification (grid and micro-hydro) brings small industries and reduces migration to cities. 9. **Foreign exchange**: for Nepal, export of surplus hydropower earns revenue and reduces the trade deficit; domestic use replaces imported LPG and petroleum. 10. **Environment**: clean renewable electricity reduces deforestation and greenhouse gas emissions. ```text More electricity --> industry, agriculture, services | | v v jobs + income ----> higher GDP, better health, education ---> development ``` #### Benefits of electrical energy over other forms | Benefit | Explanation | |---|---| | Easy transmission | Sent over lines to distant places instantly | | Easy conversion | Into mechanical, heat, light, chemical energy | | Easy control | Switching, speed and temperature control, automation | | Cleanliness | No smoke, ash or fumes at the point of use | | High efficiency | Motors and induction heaters are very efficient | | No fuel storage | Available at a switch, no transport or stockpile | | Wide range | From watts (electronics) to many MW (smelters) | | Safety | Safe when protected; no combustible fuel handling | | Renewable sources | Hydro, solar, wind: sustainable and local | | Economical | Low running cost, especially with hydropower | **Limitation**: cannot be stored economically in large quantity; generation must follow demand continuously. ## Check yourself The answer's key points as multiple-choice questions, with the correct option and why. 1. What usually accompanies a rise in per-capita electricity consumption? A. Lower GDP B. Rise in GDP and living standard C. No change in development D. More deforestation Answer: B. Electricity is basic infrastructure, so higher use goes with higher GDP and living standard. (Key point: Per-capita link) 2. How does electricity help Nepal's foreign exchange position? A. By importing LPG B. By exporting surplus hydropower and replacing imported LPG and petroleum C. By raising fuel imports D. By closing industries Answer: B. Exports earn revenue and domestic use displaces imports, reducing the trade deficit. (Key point: Foreign exchange) 3. What does rural electrification (grid and micro-hydro) bring? A. More migration to cities B. Small industries and less migration to cities C. Higher fuel imports D. Fewer jobs Answer: B. Rural electrification enables small industries and reduces migration. (Key point: Rural development) 4. What does 'no fuel storage' mean as a benefit? A. Electricity can be stored in bulk cheaply B. Power is available at a switch without fuel transport or stockpile C. The grid never fails D. Generation need not match demand Answer: B. Users need no fuel transport or stockpile; power is instantly available. 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