FEATURES: Integrated automatic braking system to protect from sudden and high wind speed. Easy DIY installation methods with all materials provided. Can be used in conjunction with solar panels. MPPT Maximum power point tracking built into the wind turbine generator. Made with high quality Polypropylene and Glass Fiber material with a weather resistant seal.
These kits can also be used for a small building on your property that needs power, such as a barn or parking garage. Running electricity to these buildings can be expensive, particularly if all you need to power are a few light bulbs and small appliances. If you own a cabin that has a greater electricity demand and is off of the grid due to geographical reasons then a solar kit can be an excellent option.
On-site data measurement adds a new layer of confidence to the techniques discussed above, but with substantial additional costs, effort, and time, especially when the preferred methodology is to match turbine hub height and collect data for a minimum of 1 year. Obtaining several years of data is better, or 1 year that can be referenced to a longer-term data set if there is good correlation with the on-site data. A number of small, affordable wind data collection systems are available for on-site measurement and are best run for at least 1 year. These systems include anemometers, wind vanes, and temperature sensors that are mounted as close to hub height as possible. Calculating the wind shear exponent requires collecting data at two different heights. Having wind shear data is essential for conducting an accurate analysis of the cost versus benefits of taller towers. In addition, analysis must be performed to determine wind speed averages and extremes, wind distribution, Weibull parameters, the wind direction rose, turbulence intensity, vertical wind shear exponent, and associated uncertainties.[28]
Solar trackers increase the amount of energy produced per module at a cost of mechanical complexity and need for maintenance. They sense the direction of the Sun and tilt or rotate the modules as needed for maximum exposure to the light.[54][55] Alternatively, fixed racks hold modules stationary as the sun moves across the sky. The fixed rack sets the angle at which the module is held. Tilt angles equivalent to an installation's latitude are common. Most of these fixed racks are set on poles above ground.[56] Panels that face West or East may provide slightly lower energy, but evens out the supply, and may provide more power during peak demand.[57]
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Rated power of a wind turbine may not be quite as meaningless as cut-in wind speed, though its use is limited. It could have some utility to quickly compare, or get a feel for, the size of the wind turbine, but only if those rated power numbers were taken at the same rated wind speed, and if the manufacturer is giving you a realistic number (many inflate rated power). A much better measure of turbine size is, simply, their diameter. As shown above it is by far the best predictor for power output.
You bum….I was just getting my data together to send to you! Very nice write-up! My wife and I did a DIY ground mount array of 6.875kW for $12k pre-tax credit. We put it on the ground because our roof is 10yrs old. Using the PVWatts website our production (thus far) is beating expectations. It was relatively easy to install, with the ground supports and their concrete being the worst part. My wife is an architect so for ‘obvious’ reasons it had to be located 200′ from the house adding some more challenges. Like when I cut the water lines with the trencher. Ooops….The local power company was helpful but dubious of ability. In the end, we saved at least $20,000 off of the local installers price and gained a ton of knowledge. Using discounted cash flow analysis our return is going to beat 11% in 10 years if electricity prices stay the same. If they go up, we make more money! In the two months since we got it up an running our electricity price has gone up.
30 Mar 2012 at 4:19pm --> . . WE have a healthy base of customers, installers, and dealers who can assist you with your home energy system. Wind and Solar is our specialty. Our Solar and Wind Home Energy Kits are installed in about 40 states of the US already. //www.youtube.com/watch?v=xrf–4-uM3s This Ohio Demo System of the RoofMill? for WindEnergy7 was […]
I just installed 2.55kw system. This is a bunch of boloney. The key is finding a Chinese distributor and buying good inverters the solar warehouse is trying to move for new inventory. Theres a lot of good stuff out there installers buy up and you can too if you know where to go. The cost of the panels, racking, 5kw inverter with one mppt, and wire was ~4700 dollars. I have to buy emt conduit and bender. The permit costs almost 500 here in cali. So all in all spent less than 6 grand and plan to claim the tax credit next year. There was no incentive from PG&E. Oh I put up a new meter, subpanel, riser too with ground rods.. But that had to be done anyhow- 1950s home with zinsco panel and no disconnect- I dunno how the place didnt burn down.. Bonded to the plumbing.. You can diy and save, just a lot of people in diy are more crazy than anything and do things that could burnt thier house down! If you dont understand electricity dont do it. DC is a little different and having a positively grounded inverter is nice too. You wont lose much efficiency. Getting well over 2.3kw on a good day. Code is another thing. Theyll have you put redundant things in the system for fiiefighters. DC Disconnect on the roof or outside
“How do I get a permit to build this thing?” Your city’s building department probably has a page describing how to apply. For example, here’s the one for Longmont. The trickiest part is generating a “one-line diagram”, but I cheated by just photoshopping my own details into the example provided with my city, leading to this result, which they approved without question.
The Hurricane white Lightning uses thicker winding which allows a higher level of current to pass to the grid tie or battery bank. This allows the generator to run both coolers and allow more amperage to pass which makes more wattage and has less resistance pass through the windings. We use the proprietary boost buck smart MPPT controller to maximize power output under all conditions. If you were able to follow the discussion essentially we have removed part of the balancing act. We are no longer limited having to use finer wire in windings to reach cut in points. We have less heating in the generators. Greater control over the turbines and finally more power output over time than anything in it’s class. We use our controller to get charging power out of turbines that other machines with lighter winding cannot. Our controller takes it another step further. The controller calculated the RPM of the generator based on the pulses of 3 phase power which flows through. The controller adjusts the resistance accordingly which takes a charge from the controller without applying to much resistance and killing the inertia of the blade set.
Wind turbines need wind. Not just any wind, but the nicely flowing, smooth, laminar kind. That cannot be found at 30 feet height. It can usually not be found at 60 feet. Sometimes you find it at 80 feet. More often than not it takes 100 feet of tower to get there. Those towers cost as much or more, installed, as the turbine itself. How much tower you need for a wind turbine to live up to its potential depends on your particular site; on the trees and structures around it etc. Close to the ground the wind is turbulent, and makes a poor fuel for a small wind turbine.
The fun part of this for me has always been the physics. Ever since I learned how much energy the Sun shines onto our planet’s surface (about 16,000 times more energy than all of humanity consumes, even with our current bloated habits), I have been certain that a mostly-solar-electric world was inevitable. The only obstructions were human inertia and politics, which are temporary. Physics is forever.
Our recommendation is the Renogy 100 Watts 12 Volts Monocrystalline Solar Starter Kit. It features a highly efficient monocrystalline panel, is built in the USA and offers good value as a starter kit.  Because it uses monocrystalline panels, it is lighter (19.8 lbs) and smaller dimensions that kits that use polycrystalline panels, which makes a difference for RV or boating applications. It can also be expanded up to 400Ws.

Wind turbine prices are not directly proportional to their power rating. There is not much difference in the labor and construction costs of 100kW and 500kW turbines. For commercial wind turbines, the cost is usually around $1 million to $2 million for every megawatt of nameplace capacity. Small scale wind turbines, on the other hand, cost around $2,500 to $5,000 per kilowatt of installed nameplate capacity. For an average household, which requires a 10kW unit, this would mean that the total costs will range from $25,000 to $50,000.

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The second most popular solution is to have a battery installation that gets charged during the sunny hours, and then when it gets dark you can switch to an inverter which changes your stored DC voltage into AC voltage for your appliances. Most solar reliant houses will have DC LED lighting to make the most of the lower power consumption of these efficient lighting products.
Over the past 2 years, WindEnergy7.com has been forming a customer/dealer & distributor network, involvement is openly being encouraged to all interested. The opportunity is available to customers who have purchased a system to get their local territory. If you buy a system, you can become a dealer with no further investment. There’s a very simple agreement and structure, all win/win.
Now the hardest part of building the solar panel system, which requires increased care and seriousness in the quality of the work done, is connecting the panel to a pack of batteries and then to an inverter. You can use a computer UPS (Uninterruptible Power Source), but you’ll need more power to power your home. However, the batteries don’t have to be new, and they can be the lead-acid type, but it’s advisable that you should buy specially crafted ones for power storage and deep cycle use, since car batteries can only cope with high loads for a short time, and if they’re accidentally discharged below a certain threshold, you lose them for good.