Energy as Infrastructure
NCERT Class 11 • Indian Economic Development • Chapter "Infrastructure"
Energy as Infrastructure
Energy is a critical part of economic infrastructure because every other activity depends on it, from farming and factories to transport, homes and hospitals. A country's energy use per person is often taken as a broad indicator of its level of development.
Types and Sources of Energy
- Commercial energy is bought and sold in the market: coal, petroleum, natural gas and electricity.
- Non commercial energy is collected rather than purchased: firewood, agricultural waste and dried dung, used mainly in rural homes.
- Conventional sources are coal, petroleum, natural gas and hydel power.
- Non conventional sources are solar, wind, tidal, geothermal and biogas, which are renewable and cleaner.
- Electricity is generated mainly at thermal stations, along with hydel, nuclear and a growing share of renewables.
- Energy consumption is divided among the transport, agriculture, industry, household and commercial sectors.
Challenges in the Power Sector
- Installed capacity has grown but peak shortage still appears in periods of high demand.
- Transmission and distribution losses are high, including technical loss and theft.
- Many distribution utilities make losses, which limits their ability to invest in the network.
- Thermal plants depend on coal supply, so a disruption in mining or transport affects power directly.
- Rural households need reliable supply, not merely a connection, if electricity is to change their lives.
- The long term direction is to raise the share of renewables, improve efficiency and strengthen the grid.
- Energy efficiency, such as better appliances and industrial processes, effectively adds capacity at low cost.
- Clean cooking fuel in rural homes reduces indoor smoke and the time women spend collecting firewood.
- Dependence on imported crude oil makes the economy sensitive to world price shocks.
- Saving energy is therefore treated as a source of supply in its own right.
- Open access and competitive generation were introduced to bring efficiency into the power market.
- Metering, billing and collection reform is the practical starting point for fixing distribution finances.
| Category | Examples | Where Used |
|---|---|---|
| Commercial energy | Coal, petroleum, electricity | Industry, transport, homes |
| Non commercial energy | Firewood, dung, farm waste | Mainly rural households |
| Conventional | Coal, oil, gas, hydel | Bulk of present supply |
| Non conventional | Solar, wind, biogas | Growing share, cleaner |
Non commercial energy — energy sources such as firewood and dung that are gathered rather than bought in the market.
Exam me kaise aata hai
- Firewood and dung are examples of — non commercial energy
- Most electricity in India is generated at — thermal stations
- Loss of power between generation and consumer is called — transmission and distribution loss
- Solar and wind are — non conventional sources
UPSC/State PSC ke liye
- High distribution losses create a cycle: losses weaken the utility's finances, weak finances prevent network investment, and a weak network causes further losses.
- Reliability matters more than a connection, because an unreliable supply forces households and firms to keep costly backup arrangements.
Yahan confuse hote hain
✗ Non commercial energy is unimportant | It still meets a large part of rural household energy need | ✓
✗ Hydel power is a non conventional source | Hydel is conventional though renewable | ✓
✗ More installed capacity automatically ends shortage | Transmission, distribution and fuel supply also decide actual availability | ✓
Ek nazar me
- Commercial energy is bought; non commercial energy is gathered.
- Conventional sources still dominate; renewables are growing.
- Thermal power leads generation, supported by hydel and nuclear.
- Key challenges: peak shortage, distribution losses and utility finances.