Hybrid Solar PV System

In renewable energy field, Hybrid Electric System, is an electric system where you have more than one form of power sources- such as grid power, solar power, wind power, generators (diesel or gas or propane, or others) and micro hydro – for your electric needs.  Solar PV Hybrid system is a system that has a […]

RESIDENTIAL PV MOUNTING BASICS

Residential PV mounting comprises of several steps such as Selecting the photovoltaic array’s location Consider protecting solar panels from unnecessary exposure Consider mounting in such location which is convenient for regular maintenance Consider minimizing the power loss by minimizing the length of the conductor to go to power conditioning equipment such as inverter, charge controller […]

Electricity Basics

Since PV systems are electrical systems, it is a good idea to understand the basics of electricity. Here are some basics and terms you will see throughout the design process of a PV system. DC- Direct Current Direct current, made popular by Thomas Edison, is the one-way flow of electrical charge. Solar modules and batteries […]

PV SYSTEM COMPONENTS AND BOS

As you read in our article “Types of PV Systems”, you now know there are 3 types of systems: Off Grid Systems Hybrid Systems Grid Tied Systems This will discuss the different components for each type of system. GRID TIED SYSTEMS Grid tied systems are the most basic type of PV system.  There is no […]

Solar Electric System for Your Home

We often tell you to install solar panels for your home, and mention why you should do that but we never have told you how to install solar panels, and what you might need to know when you are going solar. It is important to take the right steps. Today, we will take those steps […]

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Photovoltaic Systems as an investment – Payback Period

In finance an investment’s payback period is the time it takes to recover the initial investment through the cash flows it produces. You can use this financial measure when considering an investment in solar energy. The non-monetary benefits of owning a renewable energy system (independence, environmental impact, etc.) are enough for some people but others […]

PV Basics – String Sizing

Selecting the correct string size is one of the most important aspects of PV system design. A string is multiple solar modules connected together and the number of modules in that string is its size. Systems with strings that are too small will sacrifice efficiency. Over sizing strings can damage inverters, void equipment warranties, and […]

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CENTRAL INVERTER VS MICRO INVERTER

Micro Inverters are individually connected to either one or two PV solar modules. This is relatively newer technology compared to the traditional central inverter. There are different types of Micro and Central inverters in the market. Micro Inverter Examples: Enphase, Enecsys, Solarbridge, Aptonic, etc. Central Inverter Examples: SMA, Fronius, Xantrex, Solectria, etc. Micro inverters are […]

History of Solar Energy

Ever wondered about the history of solar energy? The steps that were taken until today’s technology of photovoltaics? You would be surprised how old these inventions are, yet we still see solar as a new technology and have doubts about it. Let’s take a look at some of those that made history and pointed to […]

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Global Warming

We often hear about the effects of global warming, and the dangers of the climate change. Some people believe in global warming and in the knowledge of the change happening over all the globe, and some people do not, but in order to have this discussion of whether to believe it or not, you have […]

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What Type of System to Install?

There are many types of systems that’s confusing you, we know! This article may help you choose the right system for you! So, let’s go step by step with our completed systems list: Off-Grid Systems: There are two types of off-grid systems, first one is an off grid system that is only compatible with DC […]

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Roof Mounting and Ground Mounting

The two most common system installations in the solar industry are roof mounting installations and ground mounting installations. You could find roof mounting installations mostly in residential places due to lot size, the array space on the ground may be limited. Also, roof mounted arrays are a lot more aesthetic looking and safe (due to […]

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What Are Batteries For?

Solar cells convert energy as long as there is sunlight although they do not store energy. Batteries are used to store energy produced by photovoltaic arrays and supply it to electrical loads as needed. For strong battery life it is recommended not to deep cycle (run the charge all the way down) repeatedly. Depth of […]

Balance-of-System (BOS) Components

BOS Components actually stands for everything else you need in order to install your panels. BOS Components include the wiring, grounding system, disconnects, foundations, and support panels. If required they also include subpanels, conduit, and combiner boxes.

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PV Systems Information

How to buy a solar system without getting ripped off: The typical cost for a solar system installation is $1.00/watt to $1.50/watt. When shopping for a system or for home solar panel kits, get the price of every item and a separate quote for the system installation. The difference between bids may shock you. Here […]

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Types of Charge Controllers

Charge controllers are devices that regulate the charge and discharge of batteries. Rated by their maximum AC current output. There are two types of charge controllers : PWM (Pulse Width-Modulated): Ideal for use with sealed batteries Can only be used within a limited range of panel configurations and voltages MPPT (Maximum Power Point Tracking): Harvest energy more […]

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What are Inverter/Chargers?

Inverter/Charger can function as both an inverter and as a battery charger. Note that off-grid inverters are not designed to sell power back to a utility grid service, but Inverter/Charger have an internal battery charger that can utilize AC electricity from a generator or the utility and convert it to DC electricity to charge the […]

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Why Do I Need Inverters?

Inverters are used to convert direct-current (DC) produced by the PV array into alternating-current (AC). Solar arrays produce DC power, in order to integrate panels with the electric grid, it needs to be converted to AC power (A common wall plug is AC). There are two types of inverters: Modified Sine Wave: Less expensive Poor […]

Our Installations

We have a department of solar designers in-house to assist you in designing a complete system to fit your energy needs. We can also recommend an installer from our network of recommended installers: State certified electrical and solar energy contractors Master Electricians We offer turn-key systems (design, installation, electrical wiring). For questions or quotes, contact […]

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Types of Solar Energy

Solar Energy is not only used to produce electricity, there are variety of technologies to use solar energy, some of those are: Photovoltaic Systems: producing electricity directly from sunlight; Solar Hot Water: heating water with solar energy; Solar Electricity: using the sun’s heat to produce electricity; Passive Solar Heating and Day lighting: using solar energy […]

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Types of Photovoltaic Cells

There are three basic types of photovoltaic cells: Monocrystalline: These cells are formed using thin slices of single crystal, this makes them most efficient and because of the manufacturing process these cells are the most expensive. The efficiency of monocrystalline panels are typically 15-20%. Polycrystalline: To reduce the cost of the single cell manufacturing process, […]

Energy Efficiency

The less electricity you use, the fewer panels you will need! So, how do you use less electricity? Well, by having an energy efficient home. So many appliances now are energy efficient. Like, everything with “ENERGY STAR”, I am sure you have heard of it! So what is efficiency? Efficiency is using relatively less energy […]

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How Do Solar Cells Work?

Solar Cells convert sunlight (photons) into electricity (voltage). Just like computer chips solar cells have semiconducting material, when sun is absorbed by this material, the solar energy separates electrons from their atoms, which allows the electrons to flow through the material to produce electricity. This process is called photovoltaic effect. Solar cells convert energy as […]