5 Things You Should Know Before Installing Solar Panels

Pay too little and you risk a dodgy product and no after-sales service. Pay too much and you'll end up waiting 10 years just to recoup your cost!

Solar photovoltaic output depends on orientation, tilt, and tracking

Tilt angles may reflect factors other than generator performance. Some installation sites may not be conducive to tilted arrays or specific orientations

Optimizing a Solar Array's Tilt and Module Spacing

System optimization is more than just good-looking charts - in this case, we are able to increase system profit by $40k, an increase of over 70% versus the 15º-tilt baseline design.

The DIY Guide to OFF GRID Solar Electricity

In this article I'll show you how to untether from the grid, and avoid a smelly, noisy, fuel consuming generator except in extreme weather conditions. It can be pricey for a good system, but you'll have minimal ongoing expenses, unlike fuel and maintenance on a generator. The less power you consume, the less power you will need to generate, keeping the system costs down. It's important to start with conservation.

Shaping America's Green Workforce: Community Colleges' Role

As environmental awareness and the trend toward the adaptation of sustainability practices become common in corporate America, the academic world is placed in a unique position to make a significant contribution to this trend by providing education and training that responds to this trend.

Condition Monitoring for Wind Turbines

Condition Monitoring involves a set of activities wherein various components of the wind turbine are regularly inspected and monitored. The process gathers condition parameters of the machinery, such as lubricant condition, temperatures, vibration data and visual inspection results, on a regular or permanent basis. A minor failure in a key component of the wind turbine can cause down-time and severe losses

How To Make A Homemade Solar Light in a Jar

Constructing a solar-powered light in a jar is a great project to do with kids. It can be done at home, or in a classroom, with simple materials, and will serve to give them a good understanding of how solar energy is used.

SOLAR SYSTEM INSTALLATION - PITFALLS TO AVOID

New technology is the "white horse" of affordable solar. Many customers hear or assume that technology is always going to improve over time and that will in turn bring down prices. The technology that we're using today is the same that we've been using since 1960 and it is the most efficient way to capture the unlimited, free, clean energy from the sun.

SOLVING THE POWER CORD PRETZEL PROBLEM

Green Plug believes the time has come for a reusable, multi-port power supply that can provide a universal power interface for all electronic products. The company is also taking a stand for setting a worldwide DC power standard.

The Half Program

The Half Program has proven to be a very good investment - we spent a total of $7,525 for all the energy reduction projects, and we are saving $4,007 per year in energy costs!

PDA Energy Auditing Choices

Choosing the right hardware is among the most important decisions that you will make when beginning an energy audit / inspection application.

Making Solar Electric Systems Pay Back Fast

You are an excellent candidate for a solar electric system if your electric bill is over $75 per month, you pay more than $0.12 per kwh for electricity, your state offers substantial rebates for solar electric systems, and you have good solar exposure.

Product Review of Online Energy Analysis Software - The Home Energy Saver

Spending a few minutes with this software can provide as much education as reading several books on energy saving construction ... in real terms ... with your own house as an example. The tips provided along the way are very helpful and having the "Energy Efficient House" costs listed gives you a great target to shoot for.

Tracking Energy Waste

The Submeter shows you where electrical power goes in your apartment building, office, marina, or RV park! Do you have a "smart house"? A submeter can track all of your branch circuits and report power anomalies. Read and control from any internet connection.

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Featured Product

WS510 Secondary Standard

WS510 Secondary Standard

In the monitoring of large photovoltaic (Utility Scale), in assessing potential sites (Solar-assessment), or in up and coming electricity cost saving initiatives projects (Commercial & Industrial), the WS510 now provides the market a secondary standard pyranometer, ultrasonic wind speed, ultrasonic wind direction, temperature, pressure and humidity all in a single unit.. This sensor meets the high demands of the world meteorological organization (WMO) through the active valving at air temperature measurement and the inertia- and maintenance-free measurement of wind speed and wind direction on the ultrasonic principle. Equipped with a Kipp & Zonen pyranometer of the secondary standards, the WS510-UMB Compact weather sensor from Lufft unites the precision of a variety of meteorological individual sensors in a single all-in-one device, for the first time.