Older, inefficient commercial rooftop unit (RTU) air conditioning systems are common and can waste from $1,000 to $3,700 per unit annually, depending on the building size and type. By replacing or retrofitting them, you can save money, improve your energy efficiency, make your building more comfortable, and help the environment. The Advanced RTU Campaign (ARC) encourages commercial building owners and operators to replace their old RTUs with more efficient units or to retrofit their RTUs with advanced controls in order to take advantage of these benefits. This website shows updates to the campaign including resources and progress towards the campaign's goal.
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The Energy Management Package was developed by LBNL and DOE to deliver energy management and low- and no-cost energy efficiency opportunities to the small commercial building sector (less than 50,000 sq. ft.). This whole-building efficiency service offering was designed to be delivered by HVAC contractors at low transaction cost, and includes analysis of whole-building monthly or interval energy data and benchmarking, using free and low cost software tools. The website includes links to the Package itself, the business model associated with delivery of the Package, an introductory webinar, and an overview slide deck. Contractors servicing the small commercial sector who are interested to help demonstrate this approach should contact the point of contact below.
The package helps contractors to address questions such as:
What no- or low-cost measures could generate savings in a building?
How much energy does a building use compared with similar buildings?
How has energy usage changed over time? If the owner has already made upgrades, have they been effective?
How much money could potentially be saved through energy upgrades?
This website includes lists of partners and resources to help building owners get access to whole-building energy usage data for the purposes of benchmarking their buildings.
Question-and-Answer Resource for the Building Energy Modeling Community.
Green leases (also known as aligned leases, high performance leases, or energy efficient leases) align the financial and energy incentives of building owners and tenants so they can work together to save money, conserve resources, and ensure the efficient operation of buildings.
Building leases lay out how energy costs are divided between tenants and owners. Often, these leases are not structured in a way that promotes energy savings. Under most gross leases, for example, tenants have no incentive to save energy in their leased premises because energy costs are based on tenant square footage. Under most net leases, building owners have no incentive to invest in efficiency for their building systems because the operating expenses are passed through to tenants, who would therefore receive all of the energy cost savings.
This website has sample leases and case studies to help commercial building owners and brokers.
The Bertschi School Living Science Building was designed by intense collaboration between Bertschi students and staff, and KMD Architects Restorative Design Collective. The site is located on the north side of an urban campus in Seattle, Washington, USA. Through a series of interviews, the team learned what the students wished for in their new learning space: "an indoor river, a bamboo fountain to relieve stress, and green house where something’s always growing". Architects, landscape architects, engineers, and other consultants paired these requests with the rigorous standards of the Living Building Challenge v 2.0 (LBC) to design a 1,425 sq ft science classroom building on a 3380 sq ft site. https://www.bertschi.org/science-wing