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Home Solar Power Inverters

Power Inverters

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An off-grid solar system must have all the necessary equipment to generate, supply and store solar energy onsite. Off-grid solar systems are also referred to as standalone solar power systems, as they operate without a connection to any external power source. Off-grid solar systems are made up of 12 volt solar panels (or modules) that can be used individually or combined into a single array. The solar panels use a solar charge controller to send power to charge solar batteries and a solar inverter to convert direct current (DC), which the solar panel generates, to useable alternating current (AC). Off-grid solar systems are ideal for remote rural areas and applications where power sources are either impractical or unavailable.

Inverters convert DC power stored in the solar battery bank to AC power that can be used as needed. Selecting a proper inverter for an off-grid solar system is based on the maximum load that will be powered, the maximum surge required, the output voltage required and the input battery voltage. The size of an inverter is measured by its maximum continuous output in watts. This rating needs to be larger than the total wattage of all of the AC loads that will be run at one time. The inverter’s input voltage range must match the voltage range of the battery bank. The voltage of the battery bank reaches its lowest value when the batteries are discharged and its highest value when they are fully charged. Off-grid inverters are generally available in DC input voltages of 12V, 24V and 48V to match the corresponding battery output voltages.

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Morningstar SI-300-220V SureSine inverter 300 Watt
Morningstar SI-300-220V SureSine inverter 300 Watt
$337.70 $431.20
Morningstar 300 Watt SureSine inverter 60HZ (US)
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Morningstar SI-300-115V-UL SureSine inverter 300 Watt
Morningstar SI-300-115V-UL SureSine inverter 300 Watt
$362.65 $466.40
Morningstar 300 Watt SureSine inverter 60HZ (US)
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Differences Between Power Supplies, Inverters and Transformers

Power supplies

A power supply converts one type of power to another.  The most common example is a power supply that takes AC voltage and converts it to DC voltage. While it is very common to use power supplies in industrial applications, one very common place to see a power supply used is for the devices such as: smartphones, laptops or tablets. Most devices come with a power cord that has a bulky block on the end of it. This block is where the power supply is located. Most devices do not use AC power, which is the type of power being supplied to homes. They use some form or DC power. The power supply changes the AC voltage to the correct DC voltage for the device. 

Inverters 

Inverters work in a similar way to power supplies, with one major difference, instead of converting AC power to DC power, the inverter does the opposite. It converts DC power to AC power. DC power is created by devices such as solar panels or batteries, but most homes require AC power. To convert the DC power that is generated by the solar panels, an inverter is used.  

Transformers

Transformers convert one type of AC power to a different type of AC power. For example, homes commonly use 120 VAC and automatic sprinkling systems have valves that require 24 VAC. A transformer converts 120 VAC to 24 VAC so the sprinkler valves can operate properly. Transformers come in many different shapes and sizes.  and can convert AC power up or down. 

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