Energy Milestones

AT THE VERY BEGINNING OF THE HUMAN ENERGY WORLD... FROM THE 18 TH CENTURY, A NEW SOURCE OF ENERGY APPEARED AND DEVELOPED RAPIDLY : THE WATER... Solar energyA huge breakthrough in the

AT THE VERY BEGINNING

OF THE HUMAN ENERGY

WORLD

PEOPLE RELIED ON THEIR MUSCLES

THE MUSCLES OF ANIMALS

FIRE

OR WIND POWER

FROM THE 18 TH CENTURY, A NEW SOURCE

OF ENERGY APPEARED AND DEVELOPED

RAPIDLY :

THE WATER

THE WATER WHEELS, INVENTED TWO CENTURIES BEFORE CHRIST

THEY HELPED CRUSH GRAIN

grain water

THEY HELPED SAW WOOD

RICHARD ARKWRIGHT

ENGLAND

AS THE STEAM ENGINES PROVED MORE FLEXIBLE AND ECONOMICALLY EFFICIENT

THEY GRADUALLY ENDED THE ERA OF

WATER POWER

A remarkable breakthrough in industry’s

history

• The age of prehistory, people used wood to make

fire as the only artificial

energy

• Steam Engine was

developed and Coal

became an important fuel

Uses of Coals

Solar energy

A huge breakthrough in the energy’s history

• This energy drives the climate and weather and

supports virtually all life on Earth

• Heat and light from the sun, along with solar-based

resources such as wind and wave power,

hydroelectricity and biomass, account for most of the available flow of renewable energy

Solar energy’s first date

• Solar energy technologies harness the sun's

energy for practical ends These technologies date from the time of the early Greeks, Native Americans and Chinese, who warmed their buildings by orienting them toward the sun Modern solar technologies provide heating, lighting, electricity and even flight.

Solar energy technologies

• Solar chemical/ biological absorbent ( esp in almost all kinds of plant)

A 16th century picture related to solar energy using

(thermal method)

Solar thermal

Solar electric using products

A solar cell

• Batteries can be used to store excess electricity from a photovoltaic system

• This type of storage system consists of a photovoltaic

power source connected to a battery bank via a charge

controller and inverter

• Solar Rechargeable batteries (Violetta company )

• Solar charger (Violetta company )

• Nuna 3 – a solar racing car

Capability of solar energy

• Solar energy provided 0.04% of the world's energy usage in 2004, which would increase

to 40% by 2010 at the current rate of

increase.

1 Terawatt (TW) = 10⁹ W

 For centuries, since the energy started to

contribute to the humans’ development, our life

seems to turn over a new leaf and become brighter than ever Water washed away the difficulty in

humans’ applicable science history Coal marked the first move in the energy industry And the solar energy open a new age of development for the

human being