Investments in Solar Energy. Proponents of solar energy point to the vast savings that come in the long run from using a free source of energy (the sun) rather than paying high prices for electricity....

Investments in Solar Energy. Proponents of solar energy point to the vast savings that come in the long run from using a free source of energy (the sun) rather than paying high prices for electricity. Unfortunately, solar energy systems typically have large up-front expenses to install the system. Use the concept of present value to show that solar energy systems are more likely to be profitable when interest rates are low