RENEWABLE ENERGY [HOUSE DESIGN] ÁLVARO DE ANDRÉS EMMANUEL KYERE-FREMPONG QIAO HE ZHENHUA ZHANG GORKA BARRIO FERNANDEZ This presentation will probably involve.

RENEWABLE ENERGY

[HOUSE DESIGN]

ÁLVARO DE ANDRÉSEMMANUEL KYERE-FREMPONG

QIAO HE ZHENHUA ZHANG

GORKA BARRIO FERNANDEZ

HOUSE DESIGNOur focus is going to be on

1. architectural design of the house to make the maximum use of the sun energy.

Such as: Location Shape Orientation

HOUSE DESIGN2. Environmental friendly building

materials

3. Economic Consideration

ELECTRIC GENERATION FROM

SOLAR

BIOCLIMATIC ARCHITECTURE

Bioclimatic Architecture

LocationShape of the house Orientation

Bioclimatic Architecture

Active solar collecting

Bioclimatic Architecture

Passive solar collecting – Direct systems – Semi direct systems – Indirect systems

Bioclimatic Architecture

Isolation and thermal mass

Bioclimatic Architecture

Ventilation.– Natural ventilation

Bioclimatic Architecture

Ventilation.– Convective ventilation – Convective ventilation through attic

Bioclimatic Architecture

Ventilation.– Ventilated façade.

Bioclimatic Architecture

Climatic use of soil Stopper rooms. Protection from summer radiation

Bioclimatic Architecture

Earth Translation

Bioclimatic Architecture

Bioclimatic Architecture

ENVIRONMENTAL IMPACT AND

SAFETY

Environmental Impact and SafetyWhen analyzing Environmental Impact

in House Design we must take into account:

Impact produced by the PV Energy System

Impact produced by the Materials used to build the house

EnvironmentalEnvironmental Impact Impact andand SafetySafety

Impact produced by the Building Materials:

We can reduce the impact by using:

A suitable material for the local climate. A healthy and safe material for the

workersworkers, for the inhabitantsinhabitants and for the the planetplanet.

EnvironmentalEnvironmental Impact Impact andand SafetySafety…… by using:

A durable and easily maintained material.

The material efficiently (little transportation and processing, recyclable content)

An easily recyclable material.

EnvironmentalEnvironmental Impact Impact andand SafetySafetyInteresting examples of Green Building Green Building

MaterialsMaterials:

-Straw Bale

EnvironmentalEnvironmental Impact Impact andand SafetySafety

EnvironmentalEnvironmental Impact Impact andand SafetySafety-Straw Bale

* Great insulation properties

* Availability

*Non-toxic

*Needs little processing

EnvironmentalEnvironmental Impact Impact andand SafetySafety-Recycled Cotton/Polyester insulation:

* Made from blue jeans scraps

* Avoid using fiberglass

* Safe product for the workers

EnvironmentalEnvironmental ImpactImpact andand SafetySafety-Autoclaved Aerated Concrete:

* High thermal insulation

* Completely recyclable

* Very durable material

* High indoor air quality

How about is the solar energy of usage present status.

From the 1970s, many million of dollars were invested by governments ,private institution, architectural and solar equipment firms toward the development of practical

Environmental Benefits

Natural disaster costs soar to another world record.

Violent weather cost the world a record $130 Billion in the first eleven months of 1998- more money than was lost from weather related disasters from 1980 to 1990 ($82 Billion).

Environmental Benefits

Researchers from the Worldwatch Institute and Munich Re blame deforestation and climate change from Earth warming for much of the loss. The previous one year record was $90 Billion in 1996. Source - Associated Press, November 28,1998.

Environmental Benefits

Reducing the carbon emission Rising carbon emissions were once

favorably looked upon as a measure of economic growth and development. but now it doesn’t

Solar energy has no carbon emission and other pollutant gases

Solar energy benefit to environment and mankind Solar energy will become a form of

Shell shock

Shell Oil predicts that 50% of the world's energy will come from renewable sources by 2040.

Solar energy benefit to environment and mankind

Solar energy is a clean, safe, renewable resource, that's pollution-free and protects the environment for future generations.

ECONOMIC CONSIDERATION

THE COST

INITIAL COST

OPERATIONAL COST

INITIAL COSTIncluding the fee of equipment, such as

PV panels, mounting hardware, original battery set etc. and the installation fee

Flat collector Costs

Detached house – hot water 5 m²: 25000- 30000 SEK

Comb system 12.5 m²: 50000 - 60000 SEK

Multifamily house: 3000 SEK/m²

Solar district heating: 2000 SEK/m²

OPERATIONAL COST

Including battery replacement and the cost of backup generator power during the winter months

A SIMPLE MODEL

P

Tt

psolar

other

o

M

Why is it so expensive

High cost of raw-materialHigh designing feeLow competitionLong run to pay back

Government’s policy

Why needs the policy support?

reduce the cost of private invest

shorten the time of paying-back

how does it work?

P

T

other

solar

subsidy

GERMANY:TAX-RETURNThe solar products supplier promise

to maintain the same price for 20 years

industry can get the return of about 50 euro cents from the government per kilowatt-hour of electricity output

composed of low-interest loans for 100,000 roofs program

HOW THE POLICY INFLUENCED

Japan: directly finance

70,000 roofs program :

Government finance 50% of the initial cost of the 3-to 4-kW grid-connected residential systems

CONCLUSIONS

Conclusions The initial or the up-front cost of

installing solar panels is very high therefore, making it hard for people to make decision whether to buy it or not.

However, putting it together with the

design and building of the house make more economical and competitive not even considering the environmental benefits.

Conclusions

Further saving could be made by using solar roofing instead of normal roofing materials. The cost of roofing your house would be part of the cost of the solar energy.

Sun Slates (Solar Roof)

ConclusionsFurther more, professor Vivian Alberts

who works at the University of Johannesburg’s department of physics, has developed a revolutionary process to produce solar panels using CIGS (copper-indium-galliumdiselenide) instead of silicon.

The final product is expected to cost a quarter of the price of current solar panels.

Any question?

Thank you!