That's awesome! Glad to hear that SLR is indeed given as a reward / incentive for solar energy production. You might discuss cryptocurrency markets a bit more in-depth with your parents. A cryptocoin's value is proportional to the size of the network of users. In the past, some crypto projects have attempted to grow the network by simply "air-dropping" the coins (or giving them away to anyone), but these coins never retained long-term value because the users never invested anything to gain these "free" coins. While SolarCoin is technically given for free (as a grant), in reality it is NOT free because you can only receive a grant if you have already invested thousands of dollars in a solar energy system. Thus SLR is backed by solar energy. And as the SLR network continues to grow, then so will the value of SolarCoins.