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- e-News #92: Evolution of LEED v4
The U.S. Green Building Council has unveiled the latest version of its Leadership in Energy and Environmental Design (LEED®) Rating System.
LEED v4 sets the bar higher for manufacturers of building materials, encouraging them to reduce environmental impacts and health hazards associated with material ingredients. Rating systems have been adapted for twenty-one additional market sectors that formerly faced barriers to LEED certification, including data centers, warehouses & distribution centers, and hospitality. LEED v4 introduces several new concepts, including IDP, BUG, LCA, EPD, and HPD. If these acronyms are not in your LEED lexicon...
- e-News #91: Title 24 2013 Update
to improve the energy performance of new and existing buildings. In addition to increased stringency, the Standards have increased in scope to include requirements for covered processes -- data centers, laboratories, kitchen exhaust systems, parking garages -- and they have increased in extent to include commissioning requirements and
additional acceptance test requirements for systems and components. A few of the many key changes to the 2013 Standards follow.
- e-News #90: Fuel Cells
. A fuel cell is a device that converts the chemical energy from a fuel – most commonly hydrogen – into electricity through a chemical reaction with oxygen or another oxidizing agent. Although many might think of fuel cells as batteries, they are not. Fuel cells require a constant source of fuel and oxygen to operate, and they can produce electricity for as long as fuel and oxygen are provided.
- e-News #89: Shining Some Light on Photovoltaics
of all building components. They make a visual statement of environmental consciousness and can substantially offset a building's use of finite resources, all while saving money on monthly utility bills. You may have seen PV systems appearing on roofs in your neighborhood or heard about how much PV prices have dropped. Is it time to consider PV for your own home or business? What's happening with solar technology and is now the right time to invest in PV?
- e-News #88: Outdoor Lighting
for safety, security, productivity, and enjoyment. Guidelines and technologies available today can help meet these lighting needs while providing good quality lighting that minimizes light pollution, conserves energy, and enhances community ambience, including the effect on wildlife and our view of the starry night sky.
- e-News #87: Benchmarking
for an organization or process, usually with the goal of motivating its improvement. Benchmarking requires the use of a common metric to allow comparison between entities, or else to a minimum standard or best-practice goal. Building energy performance is typically measured in equivalent units of consumption, over a consistent period of time, for a given unit of area
- e-News #86: Zero Net Energy Buildings
all new residential construction to be zero net energy by 2020 and all new commercial construction to be zero net energy by 2030. In order to achieve this and other goals, we must understand how to define and quantify ZNE, approach ZNE by project type, and move forward with ZNE.
- e-News #85: Radiant Heating and Cooling
are more energy efficient compared to traditional forced air systems for several reasons. But let's start at the building occupant since their comfort is one of the main reasons we have the built environment.
- e-News #84: Building Information Modeling
a 3D data-rich model of all architectural, structural, mechanical
and electrical systems in the building. The model is not only used
to design the building and document it for construction, it's also
used as the primary tool to create and coordinate design
- e-News #83: Supermarket Refrigeration
have the second highest energy consumption of major building types in California, with electricity representing over 80% of this, and with energy-intensive refrigeration consuming the greatest fraction of electricity.
- e-News #82: Data Center Efficiency
of many hi-tech industries but a consequence of their rapid increase in capacity is greater consumption of energy and resources, and increased greenhouse gas emissions.
- e-News #81: A New Green Building Challenge for California
has a new challenge this year. All new building projects must incorporate sustainable design and construction requirements to meet the new California Green Building Code (CALGreen).
- e-News #80: Energy Modeling for Compliance, Incentives and Beyond
for decades to predict energy performance of buildings and the energy savings associated with energy efficiency measures. Building codes allow the use of simulation programs to provide greater design flexibility in meeting energy performance targets. But what, exactly, is that "energy performance target" and how is it formed?
- e-News #79: Solar Thermal - The Sun is at Your Service
for decades for domestic water heating and space heating. They provide a cost-effective alternative for water heating, and can be also used in larger applications from commercial systems to power plants.
- e-News #78: Measurement and Verification - Verifying what, exactly, and why?
with energy use driven by a significant number of variables that change with time, from the
weather, to usage patterns, to the attributes of the structure itself and the installed equipment. This issue of e-News details the measurement and verification (M&V) process for analyzing energy savings created through the design and operation of efficient buildings, applications of M&V in Energy Management Programs for existing buildings, and discusses measurement and verification via Building Automation Systems.
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e-News is published by Energy Design Resources, an online resource center for information on energy efficiency design practices in California. Savings By Design
offers design assistance and incentives to design teams and building owners in California to encourage high-performance nonresidential building design and construction.
Energy Design Resources and Savings By Design are funded by California utility customers and administered by Pacific Gas and Electric Company, Sacramento Municipal Utility District, San Diego Gas and Electric, Southern California Edison and Southern California Gas Company, under the auspices of the California Public Utilities Commission.