Earlier quoted context omitted.
Not to rain on your parade, but programs like this from big power companies are essentially meant to allow customers to feel good while simultaneously not going through the work and cost of switching completely to renewable power. That's because the power companies want to keep people from developing competition to them... if enough individuals install solar plants with battery storage, eventually they power company…
The idea is that a CO2 tax will never be implemented. Instead of doing nothing the best thing you could possibly do is to self impose a CO2 tax on yourself. If politicians finally decide to implement a CO2 tax you've already prepared yourself and won't see a significant increase.
That's exactly the way my wife and I saw it. Our provincial government removed the tax on Jan 1 2019. We just simply self imposed the tax.