Selling Excess Solar Energy to the Grid More Profitable than Battery Storage - PHILERGY German Solar
Metro Manila, Philippines - With solar energy system components getting more affordable each year, more and more are looking into generating their own electricity from the sun. Using solar energy during the day remains the optimal economic approach, as the high repeating expense of procuring and using a battery to store excess energy remains inferior to selling the excess energy back to the grid.
A study at Finland's Lappeenranta-Lahti University of Technology (LUT) has concluded that the expense of residential battery systems means they are less profitable than exporting unused electricity generated by household solar panels to the grid.
The study concluded that the most valuable use of solar electricity was for self consumption, as it avoids the taxes and grid charges associated with each kilowatt-hour of network electricity, as well as the wholesale cost of the energy. [