A Watt of Solar Panels: From $100+ to under fifty cents (2017) in less than my lifetime (image source cleantechnica). And the 2017 number for the blue side of the graph hit over. It works for individuals: In many cases, if you can get a good rack of solar panels on your roof, your monthly savings will be equivalent to making an investment that performs better than the stock market. But the numbers look even better as your solar setup becomes larger, like if you’re running a solar energy utility or a community solar farm. Related: In recent Colorado Energy Bids,, even when backed by battery storage (Vox). 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.
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For example, consider the following map showing the tiny amount of our deserts we would need to cover with solar panels to replace all energy consumption (electricity, oil, gas, nuclear, hydro, wind, etc). 1: Tiny land area required to power all of humanity.
() And it’s actually even better than that: the image above assumes an old-school solar panel efficiency of 8%, whereas 18% is now a standard rate. So you can cut the black dots in half again, and then chop a few more times to account for the other existing clean energy sources. And of course, you don’t have to concentrate the panels and run giant power lines everywhere as implied by the map. Palisade risk 57 keygen. You can stick solar panels virtually anywhere and they will start working like little employees for you, tirelessly cranking out energy (which is equivalent to money) and automatically.
Which is of course the real subject of this article. My DIY Solar Project. The new solar array at the MMM HQ workshop generates more than enough power to run the whole property year-round, plus charge the electric cars of the various members. So naturally, I have always wanted to have my own solar power farm.
Until now, various excuses kept me from getting it done: no great places to put panels on the roof of my main house, slightly unfavorable local regulations, but mainly a lack of knowledge of exactly what to buy and how to install it. I vowed that whenever I finally got this project done, I’d write up a report to you, to spare you some of the research and time consumption that I had to go through. So let’s get into it! Part One: Show me the Money As you can see from the picture above, I’ve started by building a relatively small solar array.
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There are twelve panels, each about 40 x 60 inches. Each one generates 300 watts of electricity when the sun shines, and when you for my climate, the whole setup will crank out about 6100 kWh/year of electricity, a chunk which is worth about $732 per year at average US power prices. Pretty amazing – enough energy to run my coworking space and Mrs.
MM’s adjacent retail store from a chunk of pretty black glass that is about the same size as a single car parking space! Meanwhile, the wholesale cost of this equipment broke down roughly like this: • 12 solar panels at $130 each: $1656 (a total of 3600 watts at 46 cents per watt) • 12 Optimizer modules (which increase power output during partial shade): $650 • One SolarEdge 6 kW Inverter (converts the DC from the panels to AC for the grid): $1102 • Various brackets, mounting racks, bolts, and wiring stuff: $460 So my total cost, due to the very good luck of having a friend who is both a dedicated Mustachian and the owner of a booming solar company, was $3900. That’s the best case, but even after you add normal profit margins plus a 30% tariff that The Donald on solar panels (and remember the panels are thankfully only half the cost of the system), you can still buy a similar or so. When you’re measuring the annual return on your investment (or “payback period”), there’s only one thing that matters on the cost side: price per watt.