State buildings should lead by example in energy efficiency. New construction and renovations of state-owned buildings must exceed the state energy code by at least 20% and should use energy modeling during the design process. Energy usage and costs are managed in a state-developed database, Enterprise Energy Management System.
"Prior to the sale of an existing residential structure, all toilets must be retrofitted with high efficiency toilets that meet the most recent requirements of the EPA Water Sense program. All city buildings with 5,000 square feet or more and all commercial buildings with 10,000 square feet or more must attain a LEED rating of silver. Select city buildings are required to achieve a gold rating. Commissioning is required for city buildings as a prerequisite for LEED. The energy performance and CO2 emissions for green buildings must be calculated to ensure that the structure exceeds the California Code by 15%."
Law requires that commercial buildings, including additions and remodels, must exceed ASHRAE 90.1 or the 2006 IECC energy requirements by at least 30%.
The "Stretch Code," an appendix to the Massachusetts state code, is a voluntary option for both residential and commercial buildings to achieve higher levels of energy efficiency than the 2009 IECC code. Adherence to the stretch code could result in 20% to 35% better energy efficiency in residential structures, and 20% better energy efficiency in commercial buildings when compared to the existing code.
All new state-leased buildings must be built as high-performance buildings and exceed the IECC most recently adopted by at least 20%. High-performance building standards will be adopted by the state department and apply to any structure purchased with state money, located at a state institution, or owned by a state agency.
New state construction must exceed the energy conservation provisions of the Oregon State building code by 20% or more. In addition, the 2007 Oregon Legislature passed HB2620, which requires that public entities spend 1.5% of the total contract price of a public improvement contract for new construction or major renovation of a public building on solar energy technology. The SEED guidelines were updated October 1, 2010, to include changes made to the 2010 Oregon Energy Efficiency Specialty Code.
This law is known as the single-family dwelling Energy Efficiency Ordinance. All new single family homes greater than 1,500 square feet and additions and remodels resulting in 1,500 square feet or greater must have energy efficiency that exceeds the Standard Design by 15% or more (determined by square footage and climate zone). Homes must meet the requirements without photovoltaic credit or alternative proposed design credit. Multi-family homes are excluded.
Residential homes, including both single-family and multi-family, must exceed the 2006 IECC energy efficiency standards by a percentage that is based on square footage. Single-family homes less than 3,000 square feet must be 30% more efficient; homes between 3,000 and 5,000 square feet must be 50% more efficient; and homes larger than 5000 square feet must be 75% more efficient. All multi-family homes must exceed the 2006 IECC by 30%. All applicants seeking a remodel or addition to an existing structure must complete an energy audit before a permit to build will be issued. New construction and remodels must also show that at least 50% of the construction waste is recycled.
New residential construction of 500 square feet or more, remodels or renovations resulting in 1,500 square feet total or more, multi-family residential construction and new commercial buildings with 5,000 square feet or more must exceed the Current Standards by the percentage listed in the compliance table for each structure. Building permits will not be issued without proof of compliance. Homes over 7,000 square feet must reach net zero energy. Projects may use photovoltaic credits and/or Alternative Proposed Design Credit to meet the requirements of the compliance tables.
Greensburg's Sustainable Comprehensive Master Plan was created in an effort to rebuild Greensburg after a devastating earthquake in 2007. The Master Plan provides a framework for the rebuilding of Greensburg based around the principles of environmental, economic, and social sustainability. As part of the plan, all municipal buildings must be constructed to LEED platinum standards and exceed the energy efficiency baseline code by 42%. The city also has a windfarm that produces 100% renewable energy for the town. It is voluntary for residential homes to comply with the ICC-700 National Green Building Standard. The Master Plan incorporates all aspects of green building- from site selection to walkability to landscaping to hazard mitigation- every element is covered.
The city of Austin has numerous green building provisions within the city building code, with requirements that vary according to location, zoning designation and building type. The building standards rely on the Austin Energy Green Building Rating system and the LEED certification system as metrics. In some cases, developers have the option of achieving compliance under either of the two systems. Under the Austin Energy Green Building Rating System, buildings are awarded up to five stars depending on the number and breadth of green building elements that are incorporated into the design. In terms of energy efficiency, rated buildings are designed to exceed the Austin Energy Code.
Public Resources Code Section 25402.1(h)2 and Section 10-106 of the Building Energy Efficiency Standards establish a process which allows local adoption of energy standards that are more energy efficient than the statewide Standards. This process allows local governments to adopt and enforce energy standards before the statewide Standards effective date, require additional energy conservation measures, and/or set stricter energy budgets. Local governments are required to apply to the Energy Commission for approval, documenting the supporting analysis for how the local government has determined that their proposed Standards will save more energy than the current statewide Standards and the basis of the local government's determination that the local standards are cost-effective. Once the Energy Commission staff has verified that the local standards will require buildings to use no more energy than the current statewide Standards and that the documentation requirements...
Index of Green Building Provisions in Florida Municipal Codes, 2009
All new construction and substantial remodels must exceed Title 24 by 10%, use solar as primary heating for pools, insulate hot water pipes, use the Green Materials list for 50% of building square footage or 100% of building fixtures, submit landscape and irrigation plans for approval to the city of Santa Monica, divert 65% of construction and demolition waste from the landfill, and capture and treat rainwater.
Adoption of the 2009 New Mexico Energy Conservation Code was based on the requirements of the 2009 IECC. Residential structures must comply with envelope and system requirements, including thermal bypass requirements, of ENERGY STAR. Lighting requirements are also based on ENERGY STAR: 75% must be high-efficacy OR 50% of installed lighting must be ENERGY STAR certified. All residential projects must be 20% more efficient than the 2006 IECC. Commercial structures must comply with the 2009 IECC unless more energy efficient standards are provided by the NM code. Effective January 11, 2011.