It is a common knowledge that energy is the main foundation for green building. Since we are now experiencing high energy prices and climate changes, it is highly important that the establishments being built nowadays are using few fossil fuels as possible. This way, the owners of these buildings are “future-proofing” their establishment against rapidly rising and unpredictable prices. Renewable Energy Sources of renewable energy are already available in the market today. For instance, you will notice that wind farms are already going up across towns and countries. These wind farms provide electricity to the residents in the area, priced at a competitive rate. Another example is the electricity that is emitted from burning biomass—includes crops and crop wastes—that are also sold at a similar price. Known as the most successful company in the oil industry, Shell Oil has estimated that the commercial energy generated from biomass by 2010 could contribute to the world’s power by five percent. This energy production could be worth more than $20 billion. Photovoltaic (PV) cell is another renewable energy being popularized nowadays. This kind of energy is generated by converting sunlight to electricity. With the improvement of technology and with the incentives offered by the government and other local utility providers, the costs of PV wattage are also becoming highly competitive. Building Systems Design and Energy A systems-based approach to building and designing a home requires energy efficiency. The building shell elements including the foundation, the roof structure, and framing plays a huge role in defining a building’s potential energy savings. The second tier to be considered is the energy used inside the establishment to be built. Including natural day lighting and ventilation can have a great impact in determining how much energy will be consumed to be able to provide convenience and comfort to the user of the establishment. You must determine the energy costs to be used when establishing a green building. This way, you will have an idea on how much energy you will be able to save up to consider your building as environmental friendly. Invest in Energy Improvements To be able to consider your building environmental friendly, you must also invest in energy-saving improvements. One way to do this is by involving yourself with the idea of insulation quantity and quality for your project. You can get help from energy consultants who are used to optimizing insulation thickness. Investing in a good insulation for your home or any kind of establishment can help you determine how long your building would last. You can also use recycled and local materials when completing a building project. You can also consider recycling construction wastes. This way, you are able to decrease the energy used when building. Consider building designs that are efficient. You can do this by strategically placing skylights and windows to eliminate the need of using appliances during the day. With high quality insulation, you can reduce the cost of temperature regulation during winter and summer. In addition to this, you are able to make your building maximize its passive heating and cooling.