Couldn’t disagree more. Do the few hours research, there are plenty of online resources that can help avoid getting fleeced. Solar PV should comfortably pay for itself in about 6-7 years. You then effectively have an inflation-linked annuity for the next 20-odd years. Did the numbers for an early-retiring neighbour (early 60’s), 10k solar investment would cost around 40k to secure the same inflation-adjusted annuity that pays 100% to his spouse in the event of his early demise, for more or less the rest of their lives. Solar & battery is a no-brainer for most if you have the capital, imo.