Call (888) 338-0183 or click here for solar pricing


Customer’s Off-Grid System

Gus Gomez is a retired university professor who spends several days out of the month at his remote, off-grid cabin in Moses Lake, Washington.  To power this stand-alone home, Gus Gomez recently purchased and installed an off-grid solar system from GoGreenSolar.com. “GoGreenSolar delivers sales and technical support and advice when needed.  I highly recommend GoGreenSolar for anyone’s solar system needs. The equipment is high quality and the technical support could not be better.”  – Professor Gus Gomez Distant from the basic amenities of city life, Gus had to transform this isolated cabin into a livable home.  Located on a 40-acre plot of farm land, this 550 square-foot cabin now has its own off-grid power, septic system, and water well, all of which are “in place free of monthly charges,” according to Gomez. “The climate in Eastern Washington provides an excellent opportunity for households and businesses to install solar systems for their electrical needs … It’s warm during summer with an average maximum temperature of 88.20 degrees Fahrenheit, while the coldest month of the year is January with an average minimum temperature of 21.70 degrees Fahrenheit.” Gus had an off-grid PV system installed to power the cabin.  Because Lake Moses frequently experiences powerful winds, Gus had the 3-module array mounted to a cylindrical pole mount instead of installing a racking solution on the roof. After drilling a ten-foot hole in the ground, they secured the twenty-foot-long steel cylinder with concrete.   At the top of the pole, three REC 235 Watt solar panels are secured with a DPW Power Fab Top of Pole Mount racking solution. This off-grid system uses eight MK 8G8DLTP Sealed Gel Batteries and a Xantrex Charge Controller. “The gel batteries are maintenance-free so we do not have to worry about them,” Professor Gomez. The couple uses the Magnum Battery Monitor Kit to view the percentage state of charge, real time amps, voltage, amp-hours in/out, and the minimum/maximum DC volts. This information is accessed through the Magnum Energy ME-ARC50 Remote Control, which acts as a command center for his system. Using the Magnum Energy ME-ARC50 Remote Control like a “fuel gauge” meter, the couple tracks the performance of their system and manages their personal kWh usage. Gus keeps his Magnum Energy Remote Control inside the cabin to check the battery level 100 feet away from the actual battery bank. The 3-panel array outside the “pump/electrical outhouse” From inside the cabin, they can also activate the MAGNUM 4400 Watt Pure Sine Wave Inverter inside the outhouse. “The system is trouble-free and easy to understand … the small monitor (Magnum Energy ME-ARC50 Remote Control) installed inside the cabin provides...

Read More

USA Today Features GoGreenSolar Customer’s Dream Home!

GoGreenSolar.com customers Philippe and Thao Jeanty have received national attention after purchasing a 9.4 kW solar system with GoGreenSolar.com.  The couple from Tennessee was recently featured on USAToday.com. and mentioned in the New York Times.  Here’s their story. Philippe Jeanty is a radiologist in Nashville, Tenneessee, though he was actually born in Congo and lived in Belgium for some time.  Philippe lives with his wife Thao, who grew up in Vietnam. Philippe made a trip to the United States in the late seventies, where became interested in energy efficiency.   This curiosity eventually became the driving force behind the development of the couple’s sustainable dream home that most clean energy enthusiasts will only passively dream of.   Their home now has geothermal heating and cooling, it’s own drip irrigation system to water their garden, solar hot water heating, and a photovolatic (PV) system. Philippe he received help from a local solar guru with the photovoltaic (PV) installation, but he designed the plans for his home with an application called Google SketchUp.  Philippe bypassed the typical method of hiring an architect, allowing him to channel his DIY work ethic.  The SkechUp plans were converted to blueprints by Scott Jenkins, and the house was built by Green Homes (Johnny and Travis Johnson). Local springs supply the couple with usable water for their quaint farm. Their home is even set up with a drip-irrigation system to water their orchard and garden!  To heat their water, they make use of an evacuated tube solar heating system by Apricus.  According to Philippe, the water heater produces an excess of hot water in the summer.  “We have to flush out some hot water from time to time,” comments Philippe.   The interior of the home is equipped with LED lighting and clerestory windows that provide great light in the summer with no insolation.  They oriented the house on an East-West axis to get the best insolation possible.  South-facing windows are shaded during the summer months by the roof overhang, and are fully insolated during the winter to help passively warm the house.  In addition to designing the home for passive solar, the six and a half inch walls are insultated with a corn-based spray foam. They have also installed a geothermal heating and cooling system under their hickory wood floors, which they haven’t had to use the past three winters, even with outside temperatures of five degrees Fahrenheit! Philippe and Thao held onto wood, windows, bathroom fixtures, and just about anything from their previous home that could be repurposed.  By collecting fallen trees on the property for their wood-burning stove, Philippe and Thao keep their home toasty during the winter months.   Wood that was once part of their old house...

Read More
Pure Sine Wave Inverters vs. Modified Sine Wave Inverters
Jun19

Pure Sine Wave Inverters vs. Modified Sine Wave Inverters

True Sine Wave or Modified Sine Wave?Because the AC electricity from the electric grid is in the form of sine wave, the inverters we use aim to produce a current that is as close to sine wave as possible.  While modified sine wave inverters present an inexpensive alternative, there is no comparison to the clean, undistorted sine wave provided by pure sine wave inverters.   Pure Sine Wave Inverter    A pure sine wave inverter, also known as a true sine wave inverter, produces a clean, undistorted electrical output.  Depending on the manufacturer of the product, pure sine inverters have a perfect sine wave output that’s in phase with the AC grid of the utility company.  Because of the sinusoidal form, pure sine wave inverters are used for grid-tie solar systems and work for virtually any AC load.  Cotek SK3000-148, 3000 Watt 48V Pure Sine Wave Inverter Because they produce no harmonic distortions in the frequency, pure sine wave inverters allow any electronic device to function well without overheating or creating an irritating “buzz” sound.  Though pure sine wave inverters are undoubtedly the best and most versatile kind of inverter, they are more expensive than modified sine wave inverters.   Pure sine wave inverters are necessary for highly sensitive products such as digital clocks, audio equipment, and video-game consoles.  As a general rule of thumb, if you’re powering any electronics, you’ll probably want to stick with a pure sine wave inverter.  The image below displays the difference between a pure sine wave and a modified sine wave.   Modified Sine Wave Inverters   The cheaper alternative to a pure sine wave inverter is a modified sine wave inverter.  A modified sine inverter converts DC electricity to a nonsinusoidal AC wave that is “modified,” or distorted.   When an inverter produces modified sine wave, the voltage output (represented in the Y axis of the image) essentially jumps from zero volts to positive, where it plateaus and drops back to zero, to negative voltage, and then back to zero again. This is signified in the image by the squared edges seen in the modified sine wave, which is contrasted by the smooth oscillation of a voltage that is produced by a pure sine wave inverter.  The modified sine wave is a stepped waveform that is designed to mimic a true sine wave.  Because it is not a clean form of energy, modified sine wave does generate a certain kind of interference called harmonic distortion (though not as much as a square wave). Modified sine wave inverters can work for the majority of low-end appliances, but take caution when using them for your...

Read More

Central Inverter vs. Microinverters: The Pros and Cons

So you’re installing a photovoltaic (PV) system.  Do you go with microinverters or stick with a central inverter? What does an inverter do? The task of an inverter is to convert the direct current (DC) electricity produced by your solar panels into alternating current (AC), which is needed for the overwhelming majority of electrical devices.  The AC power that isn’t used by your home is back-fed into the utility grid, hence the term “grid-tied.”Click here to learn about the basic components of a PV system. Microinverters Microinverters convert the DC electricity from each panel into usable, grid-quality AC electricity.   They attach behind individual solar panels in the array, allowing each module to operate independently instead of optimizing for the “weakest link.”  Turning the solar panels’ DC electricity into AC at a modular level means there is no single point of failure and you’re maximizing the potential output of your system. Because of this, microinverters are particularly advantageous for systems in locations that have shading or some potential coverage (i.e. dirt, snow, chimneys, etc). Microinverters also use a technology called Maximum Power Point Tracking (MPPT), which optimizes the electricity output by responding to the varying levels of light every couple of minutes. In addition to maximizing the yield of your system, micoinverters’ easy design, installation, and scalability have made them popular for residential applications.   Besides getting up on a roof and pulling a permitting, adding to your existing system with microinverters  like the Enphase M215 microinverter should be little trouble.   Each microinverter has its own IP address so it can be monitored remotely with web-based software.  Microinverters also allow for module level monitoring and comprehensive analytics, making it possible for you to view how much energy is being produced by each solar panel. The main disadvantage of microinverters is the price tag- they still cost more per Watt than central inverters.  Critics of microinverters have also made note that these sensitive electronics can exposed to elevated temperatures on the roof and there is lack of field data to go along with their 25-year warranty. Enphase Energy currently dominates the microinverter market and has been increasingly popular for residential applications, particularly in California.   Enphase offers a twenty-five year limited warranty on their microinverters. Microinverters are recommended for residential and DIY solar applications, especially if there are shading concerns or there’s a chance of expanding the system in the future. Pros: • Easy design, installation, & scalability • Maximum Power Point Tracking (MPPT) • Optimized for shading • Remote monitoring capability Cons: • Less of field data • More expensive • Relatively new technology Central Inverter Traditionally, central inverters have...

Read More
Monocrystalline or Polycrystalline?
Jun01

Monocrystalline or Polycrystalline?

Most solar modules used today are either polycrystalline or monocrystalline, otherwise known as mono and poly. So what is the difference between poly and mono? For the sake of brevity, the difference between the two is that monocrystalline is composed of a single crystal of silicon, while polycrystalline is composed of many crystals.  Generally speaking, mono solar panels are more efficient but poly solar panels are a better use of your money. Monocrystalline Monocrystalline, which is also called mono or single crystalline, is the older of the two technologies and has been around since 1955.  Monocrystalline is still used to manufacture photovoltaic cells today and is arguably the most efficient material available. A monocrystalline solar cell is composed of a single crystal of silicon, a purity that can be identified by a dark, even coloring.  Extensive filtration is required to purify the silicon so it can be used for monocrystalline solar cells.   A single monocrystalline silicon seed crystal is slowly pulled from the high-heat molten silicon.  As it’s drawn upwards, the silicon cools and solidifies as a single ingot.  This cylindrical ingot is then sliced into thin pieces that are then cut into the cell shapes you see on a monocrystalline solar panel. Monocrystalline solar panel panels will typically have higher efficiency rates (15-20%), converting energy particularly well in low-light and lab conditions.  Mono panels will generally have higher nameplate ratings than poly.  Because monocrystalline solar cells usually have higher efficiency, these solar panels will make good use of limited roof space. The biggest draw-back is cost.  Mono solar panels come at a premium so unless you’re particularly limited on roof space, they’re not the best use of your money. Pros: • High efficiency • Good for limited space • Performs well in low-light conditions Cons: • High Cost • Sensitive to soiling and shade • More silicon is wasted in the manufacturing process Polycrystalline Polycrystalline, which is also called poly or multicrystalline, has been used since 1981.  Until recently, polycrystalline solar panels were easily identified by their solar cells that have a textured look resembling a granite countertop or shattered glass.  Most poly solar panels just have a dark blue color now. Polycrystalline cells are composed of multiple silicon crystals, which is a cheaper way to manufacture solar modules.  Polycrystalline cells are commonly made with a cast of molten silicon.  When these cells are being created, they cool faster, creating smaller crystals.  Just remember that poly means many because it has many crystals.  Because poly solar panels are easier to produce, they’re less expensive – making them the ideal choice for most people.   Though monocrystalline is still...

Read More