Having a residential solar energy system on your property is known as a capital improvement which adds to your property’s value. This means that you can potentially sell your home faster and for more than homes without solar. Your investment in efficient, clean solar power also adds to the tax basis of your home. If you sell the home, this tax basis investment can be deducted from the sale’s price, reducing the amount of the price that is counted as profit. This reduces the taxes taken from the sale and may be able to help you avoid capital gains taxes on appreciation.