Making higher-energy light to fight cancer

Researchers use nontoxic silicon nanocrystals to convert low-energy photons into high-energy ones, bringing scientists closer to developing photodynamic treatments for cancer. Materials scientists at the University of California, Riverside and The University of Texas at Austin have demonstrated that it is possible to achieve photon up-conversion, the emission of light with energy higher than the […]

Introduction to Check Dams: An Erosion Control Practice – RUVIVAL Toolbox

Check-dams, or gully plugs, are structures built across channels to reduce erosion by lowering water speed and accumulating sediments during floods. They are often introduced in degraded areas where natural or agricultural vegetation cover was lost or not capable of holding the topsoil. Check dams could be grouped into two main categories: temporary and permanent […]

Introduction to Distributed Renewable Electricity Supply for Rural Areas – RUVIVAL Toolbox

Electricity is essential and without it, human beings can’t access important parts of society. Infrastructure and information technologies improve the education level of an area. Health services in clinics and hospitals rely on electricity, for example: to cool medicine, emergency treatment or night time care. Business activities and the manufacturing and service sectors are enabled […]

Audi e-diesel: Audi has successfully made Diesel fuel from Air and Water

German car manufacturer Audi has reportedly invented a carbon-neutral diesel fuel, made from water, carbon dioxide and renewable energy sources. The company’s pilot plant is operated by German startup Sunfire in Dresden,Germany. And, produced its first batches of the “e-diesel” this month. German Federal Minister Johanna Wanka put a few liters of the fuel in […]

Understanding true up bills

(high-energy music) – This is an example of a True-Up bill, it’s from your utility company. It combines all meter usage and production during your 12-month billing period and presents them in one lump sum. We know this is a little technical, but don’t worry, we’ll go over it in more detail. One thing that […]

Troubleshooting your solar system (SolarEdge)

(techno music) – So it looks like your solar energy system isn’t communicating. That can be frustrating. In this video, we’ll show you how to troubleshoot your SolarEdge solar energy system. First, we’ll make sure your outdoor devices are activated properly. Second, we’ll troubleshoot the gateway device. Third, we’ll make sure your internet router is […]

Selling a home with solar

(bright music) – So you got a Vivint Solar System on your roof, but it’s time to move. No worries. Selling a home with the Vivint Solar System is a lot simpler than you might think. If you’re unsure about where to start, here’s what you need to know. Step 1: Be an expert when […]

Buying a home with solar

(blues music) (clicks) – We heard that you’re thinking about buying a home with solar. That’s great. Not only do solar panels help you produce clean energy, a solar panel system can take care of a portion of your home’s energy needs. By the end of this video you’re going to have all the information […]


When you’re a kid, you celebrate every birthday. Your first birthday, your second, third, but as the years pass You start to celebrate only the round numbers, your fifth, your tenth birthday, eleventh… what? Why eleventh? That’s not even a round number, who celebrates their eleventh birthday? Oh, right, Serbian Progressive Party. Because, why wait […]

SMA Smart Connected: worry-free solar energy

My name is Ron Klaps and I am operations manager at Opteco. We have been working with SMA for many years. They have a tool called the SMA Smart Connected service. This is a real help to us as installers. If there is a malfunction in the inverter, we receive an email or a message […]