Solar Energy

SOLAR ENERGY

Presented by:

Yna Vhea Purugganan

Iris Rivera

Kerivan Durupan

Lyra Ibon

Nina Perdonan

DEFINITIONS:

Solar energy is an energy source that involves tapping the radiant

light energy that is emitted by the sun and converting it into

electricity.

Homes that are powered by solar energy have been installed with

batteries that have a capability of storing power that can operate

electrical appliances such as TV, Radio, computers and refrigerators.

Solar energy is the light and radiant heat from the Sun that

influences Earth's climate and weather and sustains life. In the

environmental context, it is also used to refer to the process of

generation of electricity by tapping the solar energy.

Solar energy is the sun’s rays (solar radiation) that

reach the Earth. This energy can be converted into

other forms of energy, such as heat and electricity.

Solar energy is by far the Earth's most available

energy source. Solar power is capable of providing

many times the total current energy demand.

SIMPLE FACTS:

Discovered/ invented in the time of 1800’s. it was

observed that the sunlight was capable of generating

electrical power.

It was obtain by the radiation of the sun

Solar energy was formed by the solar panel which

is placed directly under the sun to capture the sun

light in the solar cells to generate electricity.

Solar energy is a renewable form of energy and is

much cheaper and durable. Solar heater nowadays,

are used most commonly everywhere.

Solar technologies are broadly characterized as

either passive solar or active solar depending on the

way they capture, convert and distribute solar

energy. Active solar techniques include the use of

photovoltaic panels and solar thermal collectors to

harness the energy. Passive solar techniques include

orienting a building to the Sun, selecting materials

with favorable thermal mass or light dispersing

properties, and designing spaces that naturally

circulate air.

WHAT IS SOLAR POWER?

Solar power is the conversion

of sunlight into electricity, either directly

using photovoltaics (PV), or indirectly

using concentrated solar power (CSP). Concentrated

solar power systems use lenses or mirrors and

tracking systems to focus a large area of sunlight

into a small beam. Photovoltaics convert light into

electric current using the photoelectric effect

HOW DOES SUNLIGHT BECOME SOLAR POWER?Photovoltaic (PV) solar panels convert sunlight into electricity. These

panels are usually installed on the top of or near homes and commercial

facilities where they have maximum exposure to the sun. PV systems are

effective any time the sun is shining. When sunlight is intense and strikes

a PV module directly, more electricity is produced

Panels are becoming more common in urban and sub-urban areas as

customers look to supplement their typical energy needs with alternative,

renewable energy. Typically, one solar photovoltaic module cannot

produce enough energy to power a home or business, so a number of

modules or panels are grouped together to form a solar array

HOW DOES SOLAR ENERGY BECOME ELECTRICITY?

The first step in the process occurs when rays of

light from the sun strike the cells within PV modules

(modules are commonly called “panels”). As the light

energy hits the photovoltaic cells, electrons are

excited and begin to flow. Multiple cells are

connected in one module, and several modules are

connected together to form an array, all harnessing

and summing the flow of this electric power.

A PV array produces electricity whenever the sun shines on it.

This is true from sunrise until sunset, and often times even after

the sun sets! (A full moon on a clear night can actually produce

small amounts of current from a PV system.) Generally speaking,

an array will produce its maximum power between roughly

9:00am and 3:00pm. During those hours, with the array pushing a

strong flow of DC power into the inverter, and the inverter in turn

delivering a strong flow of AC to the home, it is very likely that

there will be a surplus of electric power available at the house.

Why? During these hours, many homes are empty, while their

occupants are off to work or school. Even for those at home during

the day, their need for artificial lighting (typically about 25% of a

home’s electricity consumption) will be much lower

SOLAR ENERGY IN MANY THINGS

The energy from the sun makes rain fall and wind

blow. We can capture that energy with dams and

windmills.

Coal, oil, and natural gas were made from prehistoric

plants and animals. The energy in them came from the

sun. We use that energy to cook our food, warm our

houses, run our cars, and make electricity.

SOLAR ENERGY IS RENEWABLE

Solar energy is free and clean. There is enough for

everyone, and we will never run out of it. Solar energy is

renewable. The sun will keep making energy for millions of

years. Why don’t we use the sun for all our energy needs?

We don’t know how to yet. The hard part is capturing the

sunlight. It shines all over the Earth and only a little bit

reaches any one place. On a cloudy day, most of the light

never reaches the ground at all.

USING SOLAR ENERGY

Solar Collectors- capture the sunlight and turn it into heat.

People can heat their houses and their water using the sun’s

energy.

Solar cells can turn solar energy into electricity. Some toys and

calculators use solar cells instead of batteries.

Solar panels are made of many solar cells. Some people put

solar panels on their home. These solar panels can make enough

electricity for a house. Solar panels are good for houses and

buildings without access to power lines.

THINGS USING SOLAR ENERGY

Solar charger

Solar powered compacting

trash can

Solar cooker

Solar dryer

Solar fan

Solar furnace

Solar inverter

Solar keyboard

Solar lamp

Solar roadway

Solar Spark Lighter

Solar still

Solar tree

Solar vehicle