Renewable energy sources include solar, wind, hydro, tidal, geothermal, and wave energy. They generate pollution-free power and help reduce carbon emissions. Water conservation techniques either improve water quality or reduce usage through restricting flow or recycling water. Examples include waterless urinals, low-flow showerheads and faucets, front-loading washing machines, rainwater harvesting, and greywater recycling systems. These technologies save water, energy, and costs while helping the environment.

1. Water Conservation
Techniques

2. Renewable
Energy

3. Renewable Energy
 Renewable energy is energy generated from natural resources
such as sunlight, wind, rain, tides, and geothermal heat, which
are renewable (naturally replenished)
 Generate carbon free energy and are also clean and pollution
free
 also referred to as "pollution free power" technologies
Renewable Technologies
Solar Wind Hydro Tidal Ocean Biomass Wave
energy energy energy energy Geothermal thermal energy
energy

4. Source IEA 2007

5. Water Treatment/Conservation
 Products with the water
treatment/conservation feature
either increase the quality of water
or reduce the amount of water
used on a site.
 This can be accomplished in two
ways:
 by physically restricting the
amount of water that can pass
through a fixture (showerhead,
faucet, toilet) or
 by recycling water that has
already entered the site.

6. Water Efficient Appliances
Any appliance which uses
significantly less water
than a standard fitting.
Such as:
Water
Efficient
Appliances/
Fixtures

7. Waterless Urinals
 Resemble conventional fixtures
 Easily replace them
 Eliminate flush water supply lines
 Flush valves are completely eliminated
 No handles to touch, no sensors to install
or adjust
 Daily cleaning procedures are the same as
for flushed urinals.
Benefits:
 cost savings
 reducing the problem of water shortages
 reducing the energy required to treat water
 reducing the amount of water that flows
into sewers
 The costs of installing these products are
comparable to standard fittings.

8. Water saving shower heads
 Shower accounts for about 30 %
of the total household water
consumption
 A reduced shower head flow rate
will reduce water consumption
during bathing, without
sacrificing user satisfaction

9. Water saving faucets
 Reduced faucet flow rates can still
reduce overall domestic water
consumption, water heating
demands, and wastewater treatment
loads.
 High-efficiency faucets in the bathroom
or a faucet aerator can reduce water flow
by as much as 30% without significantly
reducing performance.

10. Water saving washing machines
 Automatic clothes washing machines account for about 20% of
the total volume of water consumed in residents
 Savings in water usage for these devices may come from
different loading positions, suds-saver options, water level
settings, and design.

11. Rainwater Harvesting
 A system which collects rainwater from
the roof of a building and stores it for
reuse.
 This reduces water requirements from
the mains supply.
 Water collected is then stored in a tank,
before being pumped around the
building, as and when required.
 This water is not suitable for drinking
purposes but is used for other purposes
such as flushing toilets and for washing
machines.

12. Benefits:
 Reduces the demand
for treated mains
water by up to 50%
 Sustainable drainage
 Reducing the
demands on water
treatment plants.

13. Grey water recycling
 Any water that has been used in a
building, except water from toilets,
is called grey water.
 Dish, shower, sink, and laundry
water comprise 50-80% of
residential 'waste' water.
 This may be reused for other
purposes, especially landscape
irrigation.
Benefits:
 Lower fresh water use
 Groundwater recharge
 Plant growth
 Reclamation of otherwise wasted
nutrients.

14. Some Tips To Be Followed