Energy + Environment

  Researchers at CU Boulder have developed a way to make living algae emit light for much longer than the tiny flashes seen in nature, opening the door to electricity-free lighting and other “living material” applications. The team used simple chemical solutions to trigger sustained bioluminescence in Pyrocystis lunula, an algae embedded  in 3D-printable hydrogel [...]

  An interesting article in US Lighting Trends compares the economics of diesel vs. solar construction site light towers. The article argues that while diesel light towers remain the familiar default for construction jobsites, solar-powered area lighting is becoming a more compelling option as owners and contractors prioritize lower emissions, quiet operation, and long-term cost [...]

  A large number of states either have passed or are considering mandatory battery recycling laws, known as “extended producer responsibility,” or EPR laws for batteries. These laws can impact lighting manufacturers that include handheld remote controls or potentially stand alone smart control components containing batteries. By 2027, more than 61 million Americans will live [...]

  I’ve previous written two articles (1) & (2) about a startup that is seeking to reflect sunlight onto Earth with a constellation of giant space mirrors. That startup, Reflect Orbital, based in California, plans to deploy up to 50,000 orbiting mirrors by 2035 to provide $5,000/hour “sunlight on demand” for solar farms (also to [...]

  As of March 3rd, 2026, the EPA is transferring the ENERGY STAR program to the Department of Energy (DOE) through a 10-year Memorandum of Agreement. This shift, driven by a desire to unify labeling with DOE’s efficiency standards, initiates a 90-day transition period for transferring partnerships, IT systems, and databases. Key Details of the [...]

  Los Angeles is grappling with a severe streetlight crisis, with about 1 in 10 of its 225,000 streetlights out of service and a repair backlog of roughly 33,000 open service requests, many due to copper wire theft and vandalism. Residents in multiple neighborhoods have been left in darkness for months, with the average repair [...]

  Photometrics AI has integrated real-time bird migration data from the Cornell Lab of Ornithology’s BirdCast platform into its street-lighting optimization system to automatically dim lights during peak migration events and reduce fatal bird collisions with buildings. The collaboration aims to turn what has often been episodic “lights out” campaigns into an ongoing, automated operational [...]

  Energy efficiency in buildings has become the leading infrastructure priority for corporations, driven by cost pressures, regulatory demands, and decarbonization commitments, according to new survey data from Siemens’ Infrastructure Transition Monitor 2025 study. Organizations increasingly see upgrades to existing building stock—rather than new construction—as the fastest, most financially compelling route to cutting emissions and [...]

Typical solar lighting is completely off-grid, relying entirely on solar panels and a battery to power the street or area light. A more recent variation that is gaining traction is hybrid solar street and area lights. These lights contain the solar panels and battery, but also have a grid hook up for backup power, when [...]