the cost of home solar power system

How much does a home solar power system cost?

First let us introduce what is a solar power system and what types of solar power systems are included？

solar power system is a new type of power generation system that directly convert solar radiation energy into electrical energy. solar power system can be mainly divided into on grid solar system,off grid solar system and hybrid solar system.

1.What is grid tied solar power system?

Grid-tied, on-grid, utility-interactive, grid intertie and grid backfeeding are all terms used to describe the same concept – a solar system that is connected to the utility power grid.

In the day time,the solar system generate electricity which is used to the electrical appliance,if the electricity is not enough,it can get power from utility power grid.If the power generated is above the power consumed,it can sell power to the utility power grid(if the government allows)

2.What is off grid solar power system?

An off-grid solar system (off-the-grid, standalone) is the obvious alternative to one that is grid-tied. For homeowners that have access to the grid, off-grid solar systems are usually out of question. Here`s why:
To ensure access to electricity at all times, off-grid solar systems require battery storage and a backup generator (if you live off-the-grid). On top of this, a battery bank typically needs to be replaced after 15 years. Batteries are complicated, expensive and decrease overall system efficiency.

3.What is hybrid solar power system?

Hybrid solar systems combines the best from grid-tied and off-grid solar systems. These systems can either be described as off-grid solar with utility backup power, or grid-tied solar with battery storage.

If it is a on grid solar power system,it doesn’t exclude the battery , the price is relatively easy to calculate. The grid-connected solar power system mainly includes solar panels, PV brackets, controllers, inverters, combiner boxes, cables, etc. Taking a 10KW grid-connected solar system as an example, the overall cost is about USD5700.If the solar system capability is Larger, the unit price per watt is lower.

For the cost of a home off-grid solar power system, this is really not easy to calculate. Let's take the common off-grid solar power system as an example. The biggest difference here is the configuration of the battery. The price gap is very large.

The size and configuration of the battery is mainly based on the configuration of the electrical equipment in the family. and also consider the cloudy and rainy conditions.These two factors are the key to effect the battery capability and price.