Net-Zero Energy & Renewables
Net-zero energy use is the ability of a building to supply its own energy over the course of a year by using renewables (typically onsite renewables, though some definitions include offsite procurement).
Alternative energy sources like photovoltaics are becoming more affordable, increasing the possibility that a building project can achieve net-zero energy. And as more buildings use renewables along with storage technologies, there are opportunities to harmonize with the grid and use more renewable energy from there as well.
Net-Zero Energy & Renewables
Deep Dives
Get up to speed on complex topics. You can also earn CEUs and download PDF Spotlight Reports.
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The Folly of Building-Integrated Wind
Feature
Wind turbines on buildings could produce electricity where it's needed and catch high winds above ground level. However, wind turbulence, safety, cost, and poor performance all make building-integrated wind a limited strategy.
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The Living Building Challenge: Can It Really Change the World?
Feature
The Living Building Challenge, with its stringent, all-or-nothing requirements, is out to change the way we build. But is it actually achievable?
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Making Your Own Electricity: Onsite Photovoltaic Systems
Feature
Although photovoltaic systems have a long payback period, generous incentives and tax credits can make the systems attractive for building owners interested in reducing their carbon footprint.
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The Problem with Net-Zero Buildings (and the Case for Net-Zero Neighborhoods)
Feature
It can be tough to make an individual building into a zero energy building, while working at the community scale can offer up opportunities for energy efficiency and cost-effective renewable energy generation.
Quick Takes
Jump straight to the essentials with these short explanations of green building concepts.
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Understanding Emission Scopes in the GHG Protocol
Explainer
The GHG Protocol’s three emission scopes acknowledge the complexities of supply and demand while also encouraging sector-wide alignment, consistent transparency, and support for science-based decarbonization targets.
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Energy Performance: Learn the Lingo
Explainer
The AIA 2030 Commitment and many other programs require project teams to predict and report on energy use. Here are the key terms you’ll need to get the job done.
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Building Decarbonization: Learn the Lingo
Explainer
Building decarbonization 101 for architects, engineers, and sustainability consultants cutting emissions from building materials and operations.
Product Guidance
Unbiased information from our product experts helps you separate green from greenwash.
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Sol Power Tile: Integrating PV into Clay Roofing
Product Review
SRS Energy's Solé Power Tiles incorporate thin-film PV into a building-integrated system that matches the profile of clay tiles and provides homeowners and businesses an alternative to crystalline panels.
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Crystalline Technology Still Dominates PV Landscape
Product Review
Crystalline PV produces more energy per square foot than thin-film but both are viable systems, so consider your space limitations as well as your energy needs and budget.
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The World's Most Efficient Solar Thermal Collector?
Product Review
The Ritter XL solar thermal system combines the most efficient technology to generate hot water for commercial, multifamily, and district heating.
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Powerhouse: Building-Integrated PV for Asphalt-Shingle Roofs
Product Review
Dow's Powerhouse solar shingles integrate seamlessly into asphalt-shingle residential roofs.
In The News
We break news down to the essentials and provide expert analysis.
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PV Prices Rising
News Analysis
Contrary to predictions that increased demand for PV systems would result in continuing price reduction, the average cost of PV installations has risen slightly in the last three years.
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Conserval Introduces Rooftop PV and Thermal Modules
News Analysis
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Solar Water Heating Required in New Homes in Hawaii
News Analysis
A new law in Hawaii requires solar water heaters for new houses, but several groups, including a solar energy organization, see problems with the legislation.
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Building-Integrated Wind Arrives at Logan International Airport
News Analysis
Perspective
Thought-provoking opinions from the most trusted minds in sustainability.
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Net Zero Has Failed. We Need a Universal Carbon Standard for Buildings.
Op-Ed
The building sector’s current “net-zero” standards are not credible, not scalable, and don’t eliminate emissions. There’s a better way.
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This is the Universal Low-Carbon Building Standard We Need
Op-Ed
The building industry’s current net-zero-energy and net-zero-carbon standards got complicated for a reason, but they don’t have to stay that way.
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The Universal Low-Carbon Building Standard Does Six Things
Op-Ed
Here’s how we’re going to deconstruct “net zero” and rebuild it as a comprehensive standard that applies to every building.
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The Universal Low-Carbon Building Standard Avoids RECs and Unnecessary Complications
Op-Ed
RECs and carbon offsets lack credibility, and grid interactivity adds unnecessary complexity. That's why this standard leaves them out.
Learning Resources
Syllabus supplements and CEU content, with automatic reporting for AIA and GBCI.
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Just For Fun
Something weird happens every April at BuildingGreen...
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