HOUSEHOLD RENEWABLE

ENERGY SYSTEMS

LOOK BEFORE YOU LEAP

ByL.VISWANADH.

INTRODUCTION

• Depletion of fossil fuels.• Present House hold appliances are

mostly energy consuming appliances.• Production of green house gases and

release of carbon emissions which are detrimental to our world.

• India currently suffering from major shortage of generation capacity.

Is it out of our hands?

Remedies• Time for green movement.• Shift from non renewable appliances

to renewable appliances.• Reducing the carbon emissions.• Creating awareness among the

people.

RENEWABLE SOURCES• SOLAR• HYDROELECTRIC• WIND• AGRICULTURE

BIOMASS• GEOTHERMAL• TIDAL

NON RENEWABLE SOURCES• COAL• PETROLIUM• NATURAL GAS

NUCLEAR

SOURCES

RENEWABLE SOURCES PLANTS

• HYDROELECTRIC 35

• WIND 24 • GEOTHERMAL 0

NON RENEWABLE SOURCE PLANTS

• COAL 104• DIESEL 12• NATURAL GASES 45

NUCLEAR PLANTS 8

INDIA STATISTICS

Statistics showing INDIA’S electricity generation and consumption in 2010

WHY HOUSEHOLD RENEWABLE ENERGY

SYSTEMS?

Necessity• Basing on present consumption fossil

fuels are available for only 150 years.• In INDIA coal source available up to

2050 only.• Best alternative for rapid depletion

of fossil fuels.

Possible household renewable energy systems

• Solar panels• Drain back Solar hot water systems• Pico hydro power plants• Mini wind turbine• Home efficiency appliances

SOLAR PANELS

SOLAR PANELS• A PV module’s output is directly proportional

to the amount of sunlight hitting it.• Modules produce electricity when photons

(little packets of energy contained in sunlight) hit the cells and knock available electrons loose and into motion.

• Minimum requirements are solar panel, charge controller, battery system, inverter.

General layout

Drawback• Tall trees, nearby buildings, roof dormers, and

even chimneys can be challenging if done by sight alone.

• But shade even a small amount can in some cases shut down production completely.

Solar hot water system

Drain back Solar Hot Water Systems

• These popular, proven performers offer simplicity, reliability, and flexibility in system design.

• Focus on residential domestic hot water systems, many options exist for system configurations, ranging from pool heating to space heating and combined domestic hot water and space heating.

General layout

Drawbacks• Initial cost is very high.• It is mostly applicable in summer

season.• But shade even a small amount

can in some cases shut down production completely.

Pico hydro power plants

Pico Hydro Power Plants• Home-scale Pico hydro-electric

systems can give the best renewable bang for the buck• Small houses can be lighted• Main requirements are stream,

penstock, generator set, turbine, battery bank.

Drawback • It is mostly applicable in hilly areas• Protection of penstock from sun,

slides, and other physical damage• Freezing conditions (i.e., ice plugging

screens and low water levels)

Wind Electricity

Mini wind turbines

• The energy will depend on the swept area and the average wind speed at the tower top.

• Main requirements are Rotor (Blades & Hub), Alternator, Tail Boom & Vane, Shaft & Bearings, Slip Rings & Brushes, rectifier, battery

General layout

Drawbacks

• Require more maintenance.• Several of these components

can be more expensive.• Applicable mostly in high

pressure regions

Home efficiency appliances

EFFICIENT APPLIANCES

• Fluorescent bulb saves 80% of energy consumed by incandescent bulb

• Washing machines can save energy in several ways electricity used, hot water used, and water extracted (saving energy costs during drying)

• A heat pump removes heat from the outside air or the ground using phase-change materials. They can work in reverse to provide cooling in hot weather.

Drawback

Cost is high compared to present appliances

CONCLUSION

• Energy conservation is the key. It will prolong the fossil energy that now exists.

• Initial cost is high for all renewable energy systems so that all humans cannot afford these systems.

• But we have to agree that they are our

future.

Bibliography

www.homepower.comwww.eia.govwww.wikipedia.com

Queries?

THANK YOU