The document compares four types of power plants: steam, hydro, diesel, and nuclear. It discusses their initial costs, running costs, location requirements, efficiencies, fuel sources, emissions, maintenance costs, transmission costs, and starting times. Steam power plants have lower initial costs but higher running costs than hydro and nuclear. Hydro plants require large spaces for dams but have very low running costs. Nuclear plants have the highest initial costs due to complex reactors but low fuel and operating costs. Diesel plants can be located anywhere but have the highest fuel costs.

1. Gujarat Power Engineering And
Research Institute.
Topic : Comparison Between Steam, Hydro, Diesel & Nuclear
Power Plant
Prepared by :-Patel Ravi(131040109051)Guided by: Prof. Hema Mehta

2. 1) By Initial Cost & Running cost
Power Station Initial Cost Running cost
Steam power Plant lower than those of Hydro &
Nuclear.
Higher than hydro & nuclear.
Hydro Power Plant very high because of dam
construction.
Practically NIL; no fuel needed
Diesel Power Plant Lowest compared to all other
power stations.
Highest due to Diesel prices.
Nuclear Power Plant Highest due to complex
nuclear reactors.
Second lowest

3. 2) By Location & Space required
Power Station Location Space required
Steam power Plant Where there is ample supply of
water and coal.
Needs sufficient space for all
equipment.
Hydro Power Plant Where large reservoirs can be
obtained by dam construction.
Needs very large space for
constructing a dam
Diesel Power Plant Where there is required space
& water, thus can be located
anywhere.
Needs very little space for all
equipment
Nuclear Power Plant Where there is enough supply
of water, but must not be too
far away from populated areas.
Needs the least space,
compared any other power
station of equal capacity

4. 3)By Overal Efficiency & Stand-by losses
Power Station Efficiency Losses
Steam power Plant
This is plant is ≈ 25% efficient.
This is due to Boiler remaining
in operation even if turbine is
switched off.
Hydro Power Plant This is plant is ≈ 85% efficient.
This Plant has no stand-by
losses
Diesel Power Plant This is plant is ≈ 35% efficient.
This Plant has lesser stand-by
losses
Nuclear Power Plant This is plant is ≈ 55% efficient
This Plant has less stand-by
losses

5. 4)By Limit of source of power
Power Station Limit of source of power
Steam power Plant Has most Limited fuel Reserves.
Hydro Power Plant Has undependable water source due to
weather variations.
Diesel Power Plant Has Limited fuel Reserves.
Nuclear Power Plant Has sufficient fuel Reserves.

6. 5) By Cost of Fuel & Clean emissions
Power Station
Cost of Fuel
Justification
Clean emissions
Justification
Steam power Plant Maximum, due to constant
demand of coal &
transportation.
Has highest polluting
emissions.
Hydro Power Plant
Practically nil. Practically no emission
Diesel Power Plant Higher than Hydro and
Nuclear power stations.
Has cleaner emissions
compared to steam & nuclear
power stations.
Nuclear Power Plant
Minimum, due to small
quantities of fuel required.
Has cleaner emissions
compared to steam power
stations but produces nuclear
waste, which is currently an
unsolved problem.

7. 6) By Maintenance costs
Power Station Maintenance costs
Justification
Steam power Plant High. Skilled staff required.
Hydro Power Plant Lowest.
Diesel Power Plant Low.
Nuclear Power Plant Highest. Highly skilled and specialised staff
required.

8. 7) By Transmission & Distribution costs
Power Station Transmission & Distribution
costs Justification
Steam power Plant
Low. Plant is close to load center.
Hydro Power Plant
Highest. Plant is furthest from load center.
Diesel Power Plant
Lowest. Plant is at load center.
Nuclear Power Plant
High. Plant is far from load center.

9. 8) By Starting
Power Station Starting Justification
Steam power Plant Longest starting time.
Hydro Power Plant Shortest starting time.
Diesel Power Plant Short starting time.
Nuclear Power Plant Long starting time.

10. 1) Steam Power Plant

11. 2) Hydro Power Plant

12. 3) Diesel Power Plant

13. 4)Nuclear Power Plant

14. Thank You….