What is a green home?
The simple answer is a green home is one that has been built, remodeled, or retrofitted to meet higher standards than conventional construction, with the goal of achieving healthier, more resource-efficient, more cost-effective homes that enhance the lives and experiences the people who live in them.
Generally there is independent, third party verification to document that standards have been met or exceeded. This verification serves as the basis for certification of green homes and provides valuable information for consumers, helping in comparison shopping and decision-making.
There are several organizations that have developed standards for green building and development. Certification by any of these organizations is strong evidence that the home is built or remodeled to higher standards. Here are some of the most widely known and recognized green home standards.
Leader in Energy and Environmental Design (LEED) standards developed by the U.S. Green Building Council. LEED certification is available for construction and remodeling of commercial buildings, schools and other institutional buildings, homes and neighborhoods.
Energy Star is another set of standards that are widely recognized. Energy Star-certified homes must meet specific standards for energy efficiency, water conservation, and for Indoor air quality and health.
The National Green Building Standard (NGBS) was developed by the National Association of Home Builders. It is the first residential green building standard to undergo the full consensus process and receive approval from the American National Standards Institute.
There are other organizations offering green building certification, many of which are regional or statewide, such as the Build Green New Mexico Standards, largely adapted from the U.S. Home Builders Association standards.
Generally speaking, consumers can feel confident that a “green certified” home does indeed meet higher standards and offers specific, documentable benefits to the homeowner and residents of the home.
Does that mean a home without certification can’t be a green home? Absolutely not! I have worked with many people who have sought to make their homes healthier and more comfortable, enjoyable, energy and resource efficient, and cost effective. Every action taken to enhance these attributes of a home, in my estimation, makes a home more “green.”
There are generally six areas, or attributes, of homes in which standards are established for “green homes,” and in which improvements can be made.
Location: We all know real estate is all about “location, location, location”. But it’s not just status people are looking for today in location – people are choosing neighborhoods based on how they want to live and where they want to spend most of their time. For some, that means being in natural settings with open spaces and views. Others are choosing locations convenient to their jobs, schools, and daily activities that are important to them. The U.S. Green Building Council has developed standards for neighborhood development based on the following questions:
Is your local grocery store within walking distance, and is there a sidewalk for you to trek there safely?
Does your neighborhood boast high-performing green buildings, parks and green space?
Do bikes, pedestrians and vehicles play nicely together on the road?
These questions are becoming increasingly important for people of all ages and in all areas of the country.
Design: We humans spend up to 90 percent of our time indoors. It makes sense that time should be spent in spaces that make us happy, allow us to breathe easily, give us views of nature, bring in plenty of daylight, and make us healthier and more productive. Trends are showing increasing preference for smaller but better designed homes – this means architectural and interior design are becoming increasingly important for better living.
Energy efficiency and renewable energy: Energy efficiency and cost effectiveness rank high with today’s buyers. Buyers are looking at the monthly cost of home ownership rather than the overall price or price per square foot of the home. Most understand utility costs are a significant and growing part of their monthly cost of home ownership, and that an energy-efficient green home with low utility bills can be less costly to own on a month to month basis than a conventional home. Today, renewable energy (usually in the form of solar power) is a top priority for many homeowners. It has proven easy, reliable and cost effective. And, it adds value to a home.
Water efficiency: This is an aspect of green homes that is gaining in popularity throughout the country, and most especially in our desert Southwest.
Indoor air quality: Poor indoor air in our homes can result in a variety of issues, including irritation of the eyes, nose, and throat, headaches, dizziness, allergies, respiratory problems, and other, often serious, health problems. Many people aren’t even aware the materials used in conventional homes often put out harmful gases. Poorly constructed homes often have moisture problems that can lead to mold and other problems. Poorly maintained heating and cooling systems can compromise indoor air quality.
Materials and resources: Reusing old materials such as brick, wood flooring, beams, windows, etc., is a really cool way to be “green.” There are more recycled and renewable materials available today, giving people maximum choices to express their taste and be green at the same time. One of the most sustainable choices people can make is to makeover an existing home. That’s reusing and recycling at its best.
A home doesn’t have to be certified, nor does it have to address all six of these areas to be green. Bringing a home to higher standards in even one of these areas can a difference. Whether “green certified,” or just “green improved,” what is important is that the improvements are in line with the goals and priorities of the people who live in the home.
Dubai-based Emirates Insolaire will supply about 12,000 solar glass panels to the Copenhagen International School in Denmark, boosting the facility’s production of clean electricity.
Emirates Insolaire produces and distributes colored solar glass and colored PV modules using what is called Kromatix technology. This technology allows solar PV to be integrated into the architectural design of all types of buildings, opening opportunities in terms for building aesthetics coupled with enhanced energy savings.
The company indicates it is expecting sales of 50,000 square meters of solar panels and 10,000 pieces of colored PV modules during 2016. The reason? This particular colored glass can enhance the effectiveness of solar panel.
“KromatixTM patented technology provides colored solar glass for both photovoltaic and thermal solar panels. The KromatixTM technology has been developed in close collaboration with the Swiss Federal Institute of Technology [EPFL] and offers the only attractive alternative to the black and dark blue panels, without compromising on the performance, efficiency or architectural designs”
Construction for the school is now underway, with work expected to be completed in June. This project follows a memorandum of understanding signed between UAE and Denmark to boost cooperation in the fields of renewable energy and sustainability.
The solar glass system should produce about 300 MW/h per year, a total which is more than half of the school’s annual electricity consumption
In January this year, Emirates Insolaire presented its Kromatix colored solar panels and photovoltaic modules at the World Future Energy Summit (WFES) in Abu Dhabi. According to the manufacturer, Kromatix modules are capable of generating 170 to 190 watt per square meter for roof or 110 to 130 watt per square meter for facades.
Last year, Emirates Insolaire completed three colored solar installations:
- 12 kW project on the façade of the Swiss Federal Institute of Technology’s (EPFL’s) ELL building in Lausanne, Switzerland
- 24 kW BIPV system in Basel, Switzerland
- Solar thermal project in Satteins, Austria
Speaking with pv magazine, Rafic Hanbali said the completed projects demonstrate the advantages of the Emirates Insolaire’s BIPV solutions, such as less demand on horizontal required space.
“The same installed power would have required, if installed only on the ground or on a roof, an area 3 to 4 times larger,” said Hanbali. “This is, in addition to aesthetics, [demonstrates] the considerable advantage of our technology for the cities, which cannot offer enough ground and roof areas for their energy needs.”