At the back side I made a big circular hole just behind the inverter fan for fresh air suction from out side .Later I covered the hole by using plastic wire mesh.Few small holes are also made for inserting the wires from solar panel,charge controller and inverter to the battery and ac out put to the appliances.At the both sides panel 3 horizontal holes are provided for sufficient ventilation. A glass window is provided at the front side to view the different led indications in the inverter.
How frustrating! Even in solar-backwards Virginia, HOAs are actually not permitted to STOP us from putting solar panels on our roofs. Maybe worth checking around and seeing if your state has something similar that will help over-rule this objection from your HOA? Might be something out there that the HOA doesn’t even know about – they often just reflexively say “no” without necessarily checking on what the most recent statutes say.
I’ve often wondered whether it would make sense to “shade” all parking lots with solar panels. Drive to the mall (I know you don’t, but others do) and there’s acres and acres of cars baking in the sun. Mount the solar panels just high enough to comfortably walk, drive, and park beneath then rake in the free solar. In fact, if it’s it’s a commercial parking lot, you can charge customers a premium for the shade and the warm fuzzy feeling that they’re part of saving the planet. Same goes for parks in need of a little shade.
On a side note I was reading one of your articles last month where you casually mentioned that you use like 250kW/month! How the hell can he do that I thought. We average 1800kW in sunny Florida in our 2 story 3200 sqft 1969 home. So digging even farther through your blog I discovered some hacks….no dryer, no lights (unless needed), etc….and actually measure where it is going. So I did, we did an experiment…killed the dryers (one upstairs and one down ….architect wife remember) and hunted for loss. Well we found a ton! Water heater set too hot, 2 amps. Old dishwasher 12 amps, and the list goes on. Making a few easy changes we dropped the used (not counting the solar) to less than 900kW. Still too high, but on the right track. We keep the air at 80 in summer and 63 in winter so not that :)
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Stand-alone systems (systems not connected to the utility grid) require batteries to store excess power generated for use when the wind is calm. They also need a charge controller to keep the batteries from overcharging. Deep-cycle batteries, such as those used for golf carts, can discharge and recharge 80% of their capacity hundreds of times, which makes them a good option for remote renewable energy systems. Automotive batteries are shallow-cycle batteries and should not be used in renewable energy systems because of their short life in deep-cycling operations.[16]
Use this worksheet to determine what size battery bank is required for your system. Battery size, or capacity, is measured in amp-hours. Battery voltage is determined by the number of "cells" in series. All lead-acid battery cells have a nominal output of 2 VDC. Actual cell voltage varies from about 1.7 VDC at full discharge to 2.4 VDC at full charge. 12 VDC lead-acid batteries are made of 6 separate cells in one case. 6 VDC batteries are made of 3 cells in one case. Putting battery cells in parallel increases amp-hour capacity, but does not change voltage.
Research small wind turbine companies to be sure they offer certified turbines and that parts and service will be available when you need them. Ask for references from past customers with installations similar to the one you are considering. Ask the system owners about performance, reliability, and maintenance and repair requirements, and whether the system is meeting their expectations. Also, find out how long the warranty lasts and what it includes.
Combiner / circuit breaker box is a key piece of equipment that begins to bring the pieces of equipment together that allows you to generate electricity. We use almost exclusively Midnite Solar and OutBack combiners and breakers because they are safe, durable and easy to wire. NEC (National Electrical Code) says that each series of strings of panels are to be wired to it's own circuit breaker. Midnite Solar and OutBack combiner boxes make this task easy providing a breaker to turn off and on each string for any purpose. The combiner box is usually located directly under a ground mount array.
You will need some basic tools to build your diy solar panel.  First, you will need basic woodworking tools like saw, drill and screwdriver.  You will also need silicone caulk and wood glue.  For the wiring, you will need wire cutters, wire strippers, a soldering iron and solder.  You can pick up most of the tools at your local hardware store.  Radio shack sells soldering irons and solder.

On a side note I was reading one of your articles last month where you casually mentioned that you use like 250kW/month! How the hell can he do that I thought. We average 1800kW in sunny Florida in our 2 story 3200 sqft 1969 home. So digging even farther through your blog I discovered some hacks….no dryer, no lights (unless needed), etc….and actually measure where it is going. So I did, we did an experiment…killed the dryers (one upstairs and one down ….architect wife remember) and hunted for loss. Well we found a ton! Water heater set too hot, 2 amps. Old dishwasher 12 amps, and the list goes on. Making a few easy changes we dropped the used (not counting the solar) to less than 900kW. Still too high, but on the right track. We keep the air at 80 in summer and 63 in winter so not that :)

You can browse the top 100 solar contractors nationwide for 2018 based on consumer reviews (the top installers for each state are listed on this page, too). By comparing information from several installers and exactly how much you qualify for in incentives by using these contractors, you can make a more informed decision about installing solar for your home.
A solar charge controller is a device which is placed between a solar panel and a battery. It regulates the voltage and current coming from your solar panels .It is used to maintain the proper charging voltage on the batteries. As the input voltage from the solar panel rises, the charge controller regulates the charge to the batteries preventing any over charging.
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Besides that, the stakes are high—this is going on your roof, after all. “This is a big one. This is one where you can’t say, ‘well, if I make a mistake, the next time I’ll know better,’” says Jane Weissman, the president and CEO of the nonprofit Interstate Renewable Energy Council, which just released a consumer checklist and other resources for rooftop solar.
I love the idea of DIY solar and being self sufficient, but I think it needs to be done in a fair way. Hopefully when batteries get cheap enough we can get people to buy solar + storage, have essentially no electricity bill, and still don’t cost other people money. Even then though you will be relying on the grid during some winter weeks (buying 10+ powerwalls to ride through a week of bad solar does not seem like a healthy financial decision), so I am not sure this would work.
Although the calculation of wind power illustrates important features about wind turbines, the best measure of wind turbine performance is annual energy output. The difference between power and energy is that power (kilowatts [kW]) is the rate at which electricity is consumed while energy (kilowatt-hours [kWh]) is the quantity consumed. An estimate of the annual energy output from your wind turbine, kWh/year, is the best way to determine whether a particular wind turbine and tower will produce enough electricity to meet your needs. Contact a wind turbine manufacturer, a dealer/installer, or a site assessor to help you estimate the energy production you can expect. They will use a calculation based on the particular wind turbine power curve, the average annual wind speed at your site, the height of the tower that you plan to use, micro-siting characteristics of your site and, if available, the frequency distribution of the wind (an estimate of the number of hours that the wind will blow at each speed during an average year). They should also adjust this calculation for the elevation of your site.
You might love the idea of producing alternative energy in your home. Fine, technology has indeed brought us different solutions to easily make power right anywhere. Setting up residential wind turbine kits in your home or worksite is surely one of the coolest ways to contribute a share of green energy to your daily needs. Thus, you become a part of the world’s strive to end huge reliance on the depleting traditional sources of power.
Also I hate to nitpick but since you asked, I noticed a couple minor details in the article. You mentioned rigid metal conduit but I think you meant EMT conduit (“electric metal tube”) which is bendable. Rigid conduit is more like gas pipe and uses threaded fittings. Also 10/3 cable and a 40A breaker? That might be a local code difference but up here in Ontario 10AWG is normally only good for 30A. Thanks!
Local utilities and regional power authorities are investing increasing resources to solar power generation. Both private and government-owned utility companies can leverage the recently-extended federal tax credits to encourage additional investments in renewable energy by their individual customers. As solar power generation increases on the large scale, prices for equipment will be driven down further, making it more feasible for a homeowner to invest in solar installations on their homes.
Paying to have solar panels cleaned is often not a good investment; researchers found panels that had not been cleaned, or rained on, for 145 days during a summer drought in California, lost only 7.4% of their efficiency. Overall, for a typical residential solar system of 5 kW, washing panels halfway through the summer would translate into a mere $20 gain in electricity production until the summer drought ends—in about 2 ½ months. For larger commercial rooftop systems, the financial losses are bigger but still rarely enough to warrant the cost of washing the panels. On average, panels lost a little less than 0.05% of their overall efficiency per day.[28]
I was researching this recently, seems like such a good idea. From what I understand – still in test and a year or two out. They are trying to make out it will cost not much more than a regular (well a tile) roof. They have two types of identical looking tiles, one that produces electricity and one that doesnt (thinking being that entire roof (particularly the N facing) will not be photo-voltaic). Cost per square depends on the mixture of the 2 tiles but it looked to me to be in the $50 –
Glue all cans together using adhesive silicone resistant to high temperatures, at least up to 200°C/400°F. There are glues and silicons on the market that can easily withstand temperatures up to 300°C/570°F. Top and bottom of all pop cans are compatible and fit perfectly one onto another. Put some glue or silicone on the edge of one can and press it against the other. In this way the glue/silicone will not run away from the edge. Picture 4 shows inside view of two pop cans glued together, while series of stacked and finished cans is shown in Picture 5.
If the power fails in Loveland, Wesley Baldassare knows that his refrigerator and heater still will work. Baldassare, a home improvement contractor, installed a home wind turbine on his roof Wednesday after showing it off at a few area home and garden shows. The turbine uses wind energy to produce power for his home. ÒThis is designed as a starter kit for green energy," he said. "It's designed to go on the roof, which makes it practical for homeowners." Baldassare is a Colorado and Wyoming dealer for Windenergy7, a green energy company out of Ohio. He started... [rooftop wind turbine]
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