Free energy x solar energy (Brazil)
Consider two energy supply alternatives for your home.
1st) Install photovoltaic panels “now”
You will need to invest (around USD 800/kW installed) to recover it within a period of around 10 years to include the costs of capital amortisation at current market rates, operation and maintenance of the system.
2nd) Contract energy on the free market
In a few years, residential consumers will be able to supply their homes with free energy, which is substantially cheaper than captive energy (regulated rates). With current prices, the savings would be 30% and the best: no investments involved!
What makes more sense to you?