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 Death and Rebirth of DC Power
Feature Article
Direct current is replacing AC in microgrids and other setups that maximize the efficiency of lighting, HVAC, and onsite renewables.
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How to Succeed with the Living Building Challenge: 12 Teams Share Tips
Feature Article
The bar is high—that’s obvious—but watch out for some surprising pitfalls. Here’s how dedicated teams have tackled Living Building challenges.
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Solar Thermal Hot Water, Heating, and Cooling
Feature Article
By creating heat instead of electricity, solar thermal achieves three times the efficiency of photovoltaics at a lower price.
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The Problem with Net-Zero Buildings (and the Case for Net-Zero Neighborhoods)
Feature Article
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.
Product Guidance
Unbiased information from our product experts helps you separate green from greenwash.
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DC Power Supply Integrates AC and Renewables
Product Review
Nextek PhD provides AC-to-DC power at the building scale, integrates renewable energy, and can even save on first costs.
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Non-Hazardous Deep-Cycle Batteries for On or Off the Grid
Product Review
Aquion offers high-performance “saltwater” energy storage without lead, sulfuric acid, or flammable lithium salts.
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Solar Farms Offer Renewable Power for the Rest of Us
Product Review
Community solar allows customers with site limitations to purchase commercial-quality photovoltaic systems—and the Clean Energy Collective is making it easier.
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Soltecture Offers Option for Photovoltaic Facades
Product Review
Soltecture's Corium CIGS BIPV system allows thin-film panels to be integrated into building façades and can be used with Focus Material's BIPV mounting systems.
In The News
We break news down to the essentials and provide expert analysis.
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IRA’s 25C Energy Efficient Home Improvement Credit: Just the Basics
News Analysis
This program provides a tax credit to homeowners for energy efficiency improvements in residential homes.
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The IRA’s Green and Resilient Retrofit Program: Just the Basics
News Analysis
This program will administer grants and loans to owners or sponsors of HUD-assisted multifamily housing to improve its resilience and quality.
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IRA’s Greenhouse Gas Reduction Fund: Just the Basics
News Analysis
This program funds clean-energy projects, including building-scale technologies, primarily through grants to nonprofit financial institutions.
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IRA’s Section 48 Investment Tax Credit for Energy Property: Just the Basics
News Analysis
This program provides a tax credit for investment in renewable energy projects. It includes bonus credit for projects in energy communities and projects that use certain amounts of U.S.-manufactured products, including steel and iron.
Perspective
Thought-provoking opinions from the most trusted minds in sustainability.
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Why Net-Zero Energy Is a Goal We Can All Get Behind
Op-Ed
BuidingGreen’s recent report critiquing net-zero energy may be fighting the wrong battle. -
Do Solar Panels Need to be Cleaned?
Blog Post
The accumulation of dust, pollen, and bird droppings affects the energy production of a PV array. This blog post looks into how important cleaning of solar panels really is.
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Zero-Energy Buildings for All
Blog Post
There is increasing movement for buildings to reach net-zero energy, but they can't do it alone. Here's how to fix the system.
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On the Path to Net Zero
Op-Ed
At Leonard Farm, we’ve taken another big step in our quest for net-zero energy and net-zero carbon—but we’re not there yet!
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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