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Solar Panel Door To Door Sales

In Education, Opinion Leave a Comment

There is a practice in the solar energy industry that you should know about. Door-to-door selling has been around forever. The people that sell solar door-to-door really don’t sell anything. We call them “door knockers.” Solar Panel Door Knockers The idea of knocking on doors is simply to gauge your interest in solar energy. Once you are targeted with some …

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Solar Panel Power Clipping

In Education 1 Comment

The solar electricity term “clipping” refers to energy that is lost when a solar panel’s output potential exceeds the amount of power that an inverter can convert. That sounds bad, right? Well, maybe not. In good solar photovoltaic system design, the solar panel rating is almost always higher than the inverter (or microinverter) rating. The factor by which the solar …

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Solar Pool Heaters Are Weather Dependent

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Unheated pool temperatures are essentially the average of the nighttime low and daytime high ambient temperatures. It’s well known, and not surprising, that swimming pool temperatures in Southwest Florida closely track the surface temperature of the Gulf of Mexico. The near-shore gulf temperature fits the same pattern. At times, unheated pools can lag large temperature swings, but for the most …

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Pentair Superflo VS Pool Pump Updated With New Automation Options

In Education, News 2 Comments

The Pentair Superflo VS is being re-released with some new automation functionality. We previously recommended against this pump for a couple of reasons, primarily due to the analog automation options and 1.5 HP rating. The new automation options make it a good choice under certain circumstances. We have always recommended “oversizing” variable speed pumps so you can get the advantages …

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Putting Battery Backup Capacity into Perspective

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Grid-interactive solar panels cease to operate when the sun goes down. They also shut down when there is a utility outage. That is unless you have batteries. It’s a common misconception that solar panels can directly power your home during the day if the power company has a grid failure. Except in very limited circumstances, this is not the case. …

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Whole Home Solar Backup vs Critical Load Backup

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Most clients who install solar panels just do grid-interactive systems that offset utility electricity usage. The solar panels cease to function during a power outage. This is (by far) the most cost-effective way to install and use solar panels in Florida, and the reason for the explosion of solar panel installations worldwide. However, there is obviously a desire for backup …

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Photovoltaic System Variability by Month and Year

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In the industry, we make fairly broad generalizations about how much you will save with solar panels. We can’t tell you what your electric bill will be because we can’t control your energy use. Your choices have a lot to do with how much electricity you need. But we can tell you how much energy your solar energy system should …

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Solar Panel Efficiency Is Overrated

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I tell people all the time… don’t get so wrapped up on solar panel efficiency. I get it – you want the best. The most efficient solar panel on earth sounds exactly what you are looking for. But is it in your best interest? The current leader for panels that are commonly available in the efficiency race is likely Sunpower. …

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How To Install A Generator With Existing Solar Panels

In Education, Solar Design 45 Comments

This article is intended for our colleagues who install whole-home generators in Southwest Florida. Licensed electricians often don’t realize they are creating a hazardous situation that could severely damage equipment. Warranties for generators or solar inverters can be voided by failing to take into account important factors. We have seen this time and time again, so we wanted to point …

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Comparing Batteries to Generators

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When hurricane season comes around there is always a renewed interest in solar panels and batteries. Clients wonder if they should consider solar power instead of a whole home generator. But how do batteries compare to generators? Notice how I didn’t title this “Compare Solar Panels to Generators.” That’s because people conflate solar power and batteries. You don’t necessarily need one …

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The Importance of Solar Roof Attachments

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I find it very strange that solar photovoltaic system proposals and contracts often leave out one of the most important things. How are you attaching them to the roof? It seems like an obvious thing, but clients rarely ask and salespeople rarely bring it up. Yet this is a critical aspect of a solar energy system installation. There are many …

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Solar Panel Shading Analysis | How We Do It

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Sometimes there are obstructions shading the location where solar panels are going to be installed. It is critical to evaluate shading over the course of the days of the year and hours of the day. Back in the “old days,” we used some industry-specific manual tools and paper charts. We could accurately evaluate the shade location on a given day …