DIY Solar Panels World

Solor Panel Inverters – Multifunction Solar Panel Inverters

Are you ready for what Multifunction Solar Panel Inverters can do for you? Let’s jump right in…

Multifunction solar panel inverters combine the best from Stand-Alone Solar Panel Inverters and Synchronous Solar Panel Inverters. They are of course more expensive, but these are the best choice for your solar energy panels.

This type of inverter allows you to generate excess power to be stored in a battery bank. As such, you are able to use energy from the grid, from the solar panels or from stored energy in the batteries. You can even connect a standby generator to the whole setup. Let me illustrate…

During the day, solar energy panels supply your household appliances with power. At the same time, the battery bank is charged up to store energy for the night. If there is surplus electricity, they can be sold to your local power company.

By evening, the batteries will be charged up. At this time, the inverter provides AC power to the house from the batteries. If the batteries are flat, the inverter taps into the grid to charge the batteries and power up the house at the same time.

If a standby generator is used, the inverter will synchronize its power so it can be added to an existing source of power. Many multifunction solar panel inverters are not as efficient as synchronous inverters because the system must have a battery. However, they offer functions that grid-tied inverters do not.

Sizing Your Solar Energy Panels – Part 3

This is the third and final part of the “Sizing Your Solar Energy Panels” series. Have you done some calculations for your future solar power system yet? If you have been doing those mini exercises, you’ll most likely find a suitable solar panel for your home by now.

The next step requires us to find an appropriate-sized battery bank, inverter and charge controller. Let’s look at each of these:

1. The Inverter

The inverter you choose has to be sized according to the demands of the alternating current (AC) side of the circuit. Therefore you will choose a specification according to the loads in your house (with a little buffer in case you increase your loads over time). Pretty straightforward.

2. The Charge Controller

You’ll at least need a basic charge controller to begin with. Until you get fussy about how advanced you want this component to be, more affordable models will do just fine. You’ll need to get a specification that fits the output current (Amps) of your solar panel arrays. If you intend to scale up your solar power generator, you’ll do better with a larger charge controller with room to accommodate more solar panels than with two smaller-sized ones.

3. The Battery Bank

The size of your battery bank depends on how you want to use your solar panels. You can size your battery banks such that it can get you through thick clouds that pass by, or you can size them so you can get through three solid days of solar eclipse and a power outage at the same time. It really depends on you. But take note that over-sizing isn’t always realistic. You have to take into consideration the space they occupy and the how much they’ll cost you.

If your home is grid-tied, provided there aren’t frequent power outages, the size of your battery bank isn’t critical. Just size it to take care of cloudy days will do. You can still maintain your lifestyle by drawing power from the grid.

When you design your battery bank, you’ll have less power loss (through wires) if the voltage is higher. If you are able to design a 48-volt system, you can conserve more power than when you use a 24-volt or 12-volt system.