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It has been 8 months since I installed my solar photovoltaic (PV) system, and I couldn’t be happier. Low electric bills and the pride of producing my own energy makes all of the hard work worthwhile. I climbed up to check out the system, making sure that everything is still tight and unaffected by the heavy rain season. Of course, like any installation with excellent workmanship, everything checked out fine. PV Systems are so trouble-free and maintenance-free, but even though I know that, I was still compelled to break out my ladder and head up to the roof to take a look. It got meRead More →

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Solar water heaters are very old and proven technology, with roots in ancient times. Modern solar water heating collectors can capture about 85% of the available solar energy in a given area. That’s far above the ~20% harnessed by commercially available solar electric panels. A question often asked is whether someone should buy a solar water heater or a solar electric system, but the answer is not always obvious. One of the solar water heaters we sell has a rating of 12.5kWh/day. This rating is based on a particular climate and rating category (relative water temperatures). What this rating tells us is that the collector isRead More →

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You may have seen my recent post on how Florida utility companies are trying to spin the argument against Netmetering, the method by which millions of solar energy systems interconnect with the utility grid. The gist of the argument is that people who use less energy shift the cost of the grid’s infrastructure onto others. Of course, they don’t say it that way, but that is, in fact, what they are saying. I installed a solar water heater at my home yesterday. This solar energy product does not produce any electricity. It heats (or preheats) water to reduce the amount of energy used by anRead More →

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My closest friends know I’m a huge Happy Gilmore fan. Back in the day I watched it at least a few times a week. I had ringtones and computer alerts with soundbites from the movie. In the scene where Mr. Larson (played by Richard Kiel) threatens Shooter McGavin, he’s wearing a distasteful pro-gun shirt that reads “Guns Don’t Kill People… I Kill People.” Maybe that’s where I got my favorite solar energy related catch-phrase: “Homes Don’t Use Energy… People Use Energy.” If you think about it for a minute, it’s pretty obvious. While most people would consider electricity a necessity, technically speaking, energy use isRead More →

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Let me start by saying that the solar energy debate has nothing to do with solar pool heating or solar water heating, which are traditionally the bread and butter of solar energy products in Florida. This debate is about solar electricity (photovoltaic panels). There has been a rash of articles recently describing a brewing battle between utility companies and the solar energy industry in Florida. Things reached a boiling point when the Public Service Commission refused to hear PUBLIC comment on issues that affect the solar industry. (read that again – it’s true – and it’s shocking). On one side we have the investor owned utilityRead More →

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Well, the match was great… A big win for the US team. Maybe Ghana should have let power lapse during the match… In case you missed it, I posted on Monday about how Ghanaians have a power shortage, and they “purchased power” from Ivory Coast to make sure TVs stayed on during the World Cup match against the United States. To tie this into solar power, I wanted to point out how Ghana can alleviate some (but not all) of their power woes – by installing solar panels, of course! Ghana’s power comes largely from capacity built up in a reservoir behind a dam. The Lake Volta reservoirRead More →

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I was driving home today listening to Miller and Moulten on ESPN radio like I often do. They were talking about how Ghana is planning to purchase electricity from Ivory Coast to make sure television sets stay on during the 2014 FIFA World Cup match tonight against the United States. They were quoting an [erroneous] news report that said the same thing*. They almost got it right… Ghana has problems delivering power (and, thus, electricity) to it’s people at times. Right now water levels are low in reservoirs, causing hydroelectric dam power output capacity to be low. That means power outages may occur if too many people turnRead More →

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Integrity Florida, a nonpartisan, nonprofit research institute and government watchdog whose mission is to promote integrity in government and expose public corruption, has just released a scathing report on how utility companies influence the Florida legislature and utility regulators. While it’s not shocking to discover that big business uses big money to influence lawmakers, it does paint a picture of an incestuous club of cronyism that results in harm to the Florida energy consumer. Full disclosure: my company is currently embroiled in a battle with FPL over interpretation of the “Net Metering Rule,” 25-6.065, F.A.C., Interconnection and Net Metering of Customer-Owned Renewable Generation. I have requested informal assistanceRead More →

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Net Metering, the concept and laws that allow solar electricity producers to connect to the grid and sell back energy, is under attack in the United States. Florida has been spared from the recent trend of utility companies working publicly to repeal or amend Net Metering laws. Utility companies in other states have taken various public and well-funded measures to repeal Net Metering laws or to make Net Metering less attractive to solar energy customers. For example, Arizona utilities recently succeeded in adding a fixed charged for solar producers based on photovoltaic system size. While it was opposed by the solar industry and the finalRead More →

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Some in the industry call a solar pool heating system with a heat pump or gas heater a Hybrid Solar Pool Heater. I prefer to call it a solar pool heater with auxiliary or backup heater. The word ‘hybrid’ is a bit overused in the industry, and can be misleading. Nonetheless, pairing an auxiliary heat source with a solar pool heater can be an ideal solution for some people, especially those who demand particular pool temperatures year-round. If you want your pool a particular temperature all the time, and operating cost is a secondary concern (cost is rarely a complete non-issue), you might consider installing aRead More →

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Did you notice your latest bill from FPL hit you a bit harder in the pocketbook? Effective January 2, 2014, FPL raised rates for residential customers by about 5%, caused mostly by increased fuel charges. This change, approved by the Public Service Commission, also increased the non-fuel base electricity charge slightly. The fixed customer charge remained the same. Bills with the higher charges are arriving in mailboxes now. Want to fight back? Fuel and non-fuel consumption is reduced by conserving energy or by producing your own energy with solar energy or other renewable energy sources. The best part about solar energy is that you shaveRead More →

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It has been extremely exhausting, but I finally completed installing a 10kW photovoltaic (solar electric) system at my home in Fort Myers, FL today. The final interconnection was done by my electrician and we fired up the system. To my delight, even with dense cloud cover, my meter started spinning backward! I see this happen many times each year, but now I know the feeling of producing my own energy. I now understand why customers are so antsy and anxious about their installation schedules. It’s EXCITING to be your own power plant! I now understand why people want it, and more importantly, why they wantRead More →

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I received a question from a potential customer today about power production guarantees for Photovoltaic (PV) Systems. I realized that I hadn’t covered that issue on my blog, so I thought I would copy the question and response here (revised for clarity). Question: Is there a guarantee on the percentage  power output of the proposed photovoltaic system? Answer: The Canadian Solar CS6P-250P modules themselves have a power production warranty that states basically that they will put out a minimum of 97% of rated power at test conditions during the first year and degrade no more than 0.7% per year thereafter through a total of 25 years. ThisRead More →

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I just finished watching to the webinar from the Lawrence Berkeley National Labs, “Tracking the Sun VI: An Historical Summary of the Installed Price of Photovoltaics in the United States from 1998 to 2012.”  The data definitely backs the trends we are seeing locally in Southwest Florida. Here are some observations: Prices have continued a downward trend over the last decade, but have leveled off in 2013. With photovoltaic (PV) prices starting to tick back up, installed system prices are likely to increase in the near-term (installed price changes tend to lag PV module wholesale price changes). This is exactly what we are seeing andRead More →