Google Says It Is About To Reach 100 Percent Renewable Energy (blog.google)

Google said today it will power 100 percent of its sprawling data centers and offices with renewable energy starting next year. The company said today it has bought enough wind and solar power to account for all the electricity it uses globally each year. In comparison, 44 percent of Google's power supplies came from renewables last year. From a blogpost: To reach this goal we'll be directly buying enough wind and solar electricity annually to account for every unit of electricity our operations consume, globally. And we're focusing on creating new energy from renewable sources, so we only buy from projects that are funded by our purchases. Over the last six years, the cost of wind and solar came down 60 percent and 80 percent, respectively, proving that renewables are increasingly becoming the lowest cost option. Electricity costs are one of the largest components of our operating expenses at our data centers, and having a long-term stable cost of renewable power provides protection against price swings in energy.

Comments

Interesting wording

[93 Escort Wagon]

So they aren't necessarily using renewable energy, they are buying it? This sounds more like they're paying money to companies who have renewable energy credits to sell. They may also be taking part in that travel scam where you don't have to change how much your people fly and waste jet fuel at all... you just swap credits with other non-flying people and say you're being "green".

Someone in an earlier comment used the term "indulgences" - and it really is a lot like the medieval practice where rich people would pay the Vatican basically for pre-approved forgiveness of whatever unethical / immoral thing they were planning to do.

Minor problem

[sjbe]

So much for "green" power. I'm all for it, really, but let us not be deceived that "green" means at no cost. There is a real cost to everything. Tens of millions of birds (and bats) are killed the world over annually the world over.

The number of birds killed by windmills is several orders of magnitude smaller than the number killed by domestic cats. Heck FAR more birds are killed in collisions with cell phone towers than by windmills - roughly an order of magnitude more.. Bird deaths are a very minor issue especially compared with the number of deaths that will occur if we don't do anything about climate change. You're focusing on the little problem when it is the big one you should be worrying about.

Re: Thanks, Trump!

[Rei]

Peaking does not cause blackouts; peaking prevents blackouts. I'm thinking that perhaps you're confused about what a peaking plant is.

Yes, but cross country grid loading is a bad idea. Very bad.

Interconnected HVDC grids offer increases in grid stability, as cascading failures can't propagate through them (AC failures are prone to cascade as different parts of the grid go out of sync with each other). Yet most of the time a nationwide renewables-supporting HVDC grid is not used at near peak capacity (its capacity is sized for peak load transmission requirements, not average), and thus can generally have their power routed through other legs if one line goes down without curtailments (often, even, without need for peaking - it depends on timing). The grid itself is designed, as with everything else concerning electricity generation and transmission, to provide a statistically-guaranteed level of power reliability.

It's important to remember also that in the US you have basically three separate power grids today - west, east (which is kind of a patchwork), and "ERCOT", which is basically Texas doing its own little weird thing. To allow them to support each other, they have a number of converters, mainly DC ties. Basically, HVDC terminals without any actual long-distance transmission lines. So it's already done to improve grid reliability and economics. Also, certain parts of the grid already rely on long HVDC lines. Not just for "moving peak power because of intermittent shortages in one region", as a grid for supporting high renewable penetration does, but actual baseload. For example, in the northeast, RMCC moves 2 GW of remote Quebec hydropower to New England. It's almost always run at near capacity.

Europe and China uses HVDC a lot more than the US. Europe mainly for undersea lines, China to move power from inland to its densely populated coast. Both have major plans for expansion.