PASSIVE SOLAR BUILDINGS

INTRODUCTION

WHAT IS PASSIVE SOLAR BULIDING?

A passive solar home means a comfortable home that gets at least part of its heating, cooling, and lighting energy from the sun.

HOW TO MAKE A PASSIVE SOLAR BUILDING

It is designed to use the energy of sun. It’s material and building works together to create energy.

THINGS WE NEEDED:-LARGE WINDOWS SOLID WALL WATERFANSOVERHANGS.

PASSIVE SOLAR BUILDING IDEAS

APERTURE: Large window expansion that allows sun energy, it faced south, made improvements in more low cost.

THERMAL MASS: It is a construction material which stores or collect energy from sun.

INSULATION: Once power of the sun is collected, it should not be waste. So, it eliminates the air leak around the building.

DISTRIBUTION: Helps to circulate the stored solar energy when needed.

BENEFITS OF PASSIVE SOLAR BUILDING

INVESTMENT: Independent from future fuel cost, save money long after initial cost recovery.

VALUE: High owner satisfaction and resale value.

MAINTENANCE: Reduced operation and repair.

COMFORT: No operating noise, act as warmer and cooler according to the climate(even in power failure).

WHY PASSIVE SOLAR BULIDING NECESSARY?

Passive solar design save energy by maximizing the homes natural heating.

Passive solar building design very important role in reducing the greenhouse emissions in our society.

Creating passive solar building to save energy & which voluntary comply with openings are also important compliments to passive heating & cooling.

DIFFERENCES FROM ORDINARY BUILDING & PASSIVE SOLAR BUILDING

Passive solar building design…These standards are much higher then houses built to most normal building.

About 15% space heating in an ordinary home comes from solar energy passive solar houses are designed to let heat into the building during the winter…simple huge difference in comfort

The building it self server as solar collector & storage device where as ordinary building not like that.

FEATURES OF PASSIVE SOLAR BUILDING

It uses the basic design to trap heat when needed.

So, it keep the house cool in summer and hot in winter.

It picks up lot of free heat in winter from sunlight(contains about a kW of heat).

ACTIVE SOLAR

Active solar technologies are employed to converts into solar energy another more useful form of energy.

This would normally be a conversion to heat or electrical energy.

Active solar uses electrical or mechanical equipment for this conversion.

Passive solar relies on the inherent thermo-dynamic properties of the system or materials to operate.

They do not need external energy source.

ENERGY-PLUS-HOUSE

An energy-plus-house produces more energy from renewable energy sources, over the course of a year, than it imports from external sources.

This is achieved using a combination of micro generation technology and low-energy building techniques, such as: passive solar building design and careful site selection and placement.

A reduction of modern conveniences can also contribute to energy savings, however many energy-plus houses are almost indistinguishable from a traditional home, preferring instead to use highly energy-efficient appliances, fixtures, etc., throughout the house

ZERO ENERGY BUILDING

A zero-energy building(ZEB) or net energy (ZNE) building general term applied a building with zero net energy (ZNE) consumption and zero carbon emission annually.

Reduce carbon emissions and reduce dependence on fossil fuels

zero energy buildings remain uncommon even in developed countries, they are gaining importance and popularity.

DEVELOPMENT OF ZERO ENERGY BUILDING (ZEB)

No ZEB regulations or standards Existing Energy Conservation Program Existing Green Building Label System

EFFICIENCY AND SOLAR= ZEB

“First efficiency, then solar”Together, they can make a big difference. Super-efficient +solar = Zero Energy Building.

WHY NET ZERO IS IMPORTEN

Buildings are the Largest Energy Consumer in the U.S. 40% of primary energy, 72% of electricity, 55% of natural gas.

WHAT ARE THE ADVANDAGES OF GOING ZERO ENERGY

Money Savings (>$1,000s/year)Greater comfort.Better quality of life, more free time, more

money.Less use, Less maintenance. Longer lasting heating and cooling equipment.

ADVANCING NET-ZERO ENERGY COMMERCIAL BUILDINGS

In the United States, buildings account for almost 40% of primary energy use and greenhouse gas emissions.

Energy use will help address climate change and extend the life of our national resources.

Has set a goal to achieve cost-effective, net-zero energy commercial buildings in all U.S. climate zones by 2020.

Renewable Energy Laboratory (NREL) leads the way in net-zero energy building (NZEB) innovation.

SUMMARY

Can achieve zero energy home now Design for efficiency and solar up-front. Super high level of energy efficiency. Encourage conservation of residents. Choose solar thermal for water and pool heating. Use small PV systems of 4kW or so (this is still not

cost effective at present electric rates without subsidies).

Consider some PV on West side to reduce utility peak.

Watch your meter spin backwards!!!!!

MY NET-ZERO ENERGY HOUSE(ALSO ZERO EMISSION HOUSE)

This house will save a projected $165,000 in fuel and energy cost.

Over the next 20 years.

NEXT GENERATION ZERO ENERGY RESEARCH HOME

CONCLUSION

We are saw about how to save energy.In this way we are follow to reduce usage of electricity. It will be help us and also our Future generation.