We have a rapidly expanding investment portfolio in renewable energy. We've been investing in it, and we've had a dedicated team since 2018. We've invested around the world, whether it's in wind, in solar, in hydro, and we continue to do so. For example, in the last few months, we created a joint venture with Enbridge in Europe for offshore wind. We continue to put money into that. Importantly, we made our largest acquisition to date in renewables, in Pattern Energy, which is a $6-billion company focused on North American and Japanese wind and renewable assets. We bought that in the last couple of months.
We're substantially ramping up our investments in these areas, and we think they stand, in many cases—well, in all cases that we make—on their own two feet in terms of returns. We like the risk-adjusted returns in wind and solar. And it's not just wind and solar and hydro. We're also focused on innovative areas. We have a group that's dedicated to looking for innovation in the energy transition and has made a number of investments, for example in charging. There is a company called ChargePoint that is putting electric vehicle charge points in place around the world.
I might highlight one of the investments we made a couple of years ago, in Alberta, because it just came online. That's the Alberta Carbon Trunk Line. That is a carbon capture project, which was switched on in the last couple of days. Once it's up and running at full capacity, it will be extracting about 15 million tonnes of carbon a year, which is the equivalent of taking almost all of the cars in Alberta off the road. We're quite excited about that area and are looking for more opportunities.