As microbreweries and craft beers have really blown up in recent years, it’s easy to forget that the Beer brewing process goes back millennia.  Archaeologists have noted that nomads may have made beer before making bread, ancient Babylonian’s kept beer recipes on clay tablets, and European monasteries in the Middle Ages took beer brewing out of the home and into centralized production.

All of this ancient brewing was fairly unstandardized, relying on fermentation and chemical reactions and, when needed, cooking by fire.  It wasn’t until the Industrial Revolution that the production of beer scaled up massively, inventions came along to ensure the consistency of brewing, and the Energy required to brew beer became substantial, powered by the revolutionary steam engine. Since that time, the energy intensity of brewing beer became substantial– today’s breweries typically use 50-66 kilowatt-hours (kWh) per barrel of beer. With a barrel of beer containing 2 kegs of beer and an average U.S. home using 10,812 kWh  per year in 2015, that means that it takes  less than 400 kegs of beer production to account for an entire household’s annual energy use– while places like Boardy Barn in Hamptons Bay, Long Island can sell up to 600 kegs in a single day!

All this lead up is to get to the question– why do you care? Well at the time that craft brewing has come out of the niche to become mainstream, so has personal responsibility to be energy and environmentally conscious. So at the intersection of these two pushes is the trend of breweries to utilize Renewable Energy in their production process. This post is meant to not only call out and give props to all the breweries that are incorporating green practices into their fuel mix, but to show you the best tasting beers you can buy that are ALSO incorporating the most renewable energy production.

In short– green beer appears to be a brewery cultural movement (and not just with food coloring you put in one day a year)!

Methodology

As stated in the introduction, the goal of this fun exercise is to cross-list breweries who have publicly available their power generation from renewable energy or their total renewable energy generation capacity with a rating of the most popular beer brewed at that brewery. As such, the methodology can be broken out by energy and by beer:

Energy

Many breweries today are installing renewable energy generation, and luckily for this exercise they also love to talk about it. And why shouldn’t they? Making publicly available your renewable energy generation is not only great PR for a brand, but it can also lead to other breweries making the energy conscious decisions as they follow the leaders in the industry. As such, you can usually count on breweries to advertise their use of renewable energy:

Source

With this in mind, the data collected all came from publicly available sources– a section on a brewery’s website about sustainability, a news article announcing a new solar system install, etc. Based on what data was and was not available, it made the most sense to collect and rate based on total capacity of renewable energy used at the brewery. As a result, the following factors were not considered:

• The percentage of energy use at a brewery that is accounted for by renewable energy (apologies to the smaller breweries that have a large percentage, or even all, of their energy use come from renewable energy– obviously the larger breweries have more energy use overall and thus have a higher ceiling for total installed capacity, but this analysis is only counting the raw total capacity);
• Commitments to switch to renewable energy in the future (though there will be a list of ‘honorable mention’ breweries with such initiatives at the end);
• The installation of renewable energy sources without the listing of capacity or energy generated (sorry to these breweries, you’ll be in the honorable mentions as well); and
• Energy savings, energy efficiency initiates, and sustainable practices that don’t include installation of renewable energy (these will also be included in ‘honorable mentions’ to give credit where credit is due).

Beer

After assembling the list of breweries with renewable energy capacity, it sounded fun to cross-list those capacities with the rating of the most popular beer at that brewery to find the ultimate beer to reach for at the bar or grocery story that tastes great and contributes to the world’s renewable energy supply. BeerAdvocate.com was used as the repository for information on beer ratings, as it had the most extensive and widely available information for this process.

For each brewery identified on the below list, the beer with the most ratings on BeerAdvocate.com was identified as the most popular beer. The most popular beer was chosen to ensure a high sample size of ratings and to best represent the beer made at that brewery. So while there may be beers more highly regarded at the breweries identified, the chosen most popular beer is more likely to be that brewery’s flagship beer and accounts for the highest portion of the brewery’s production energy compared with any other beer.

Results

Below is a table of the 57 breweries found with advertised renewable energy capacity, with the greatest capacity at the top.  After a quick glance at this table, a few tidbits jump out:

• Renewable capacities found on this list starts at 10 kilowatts (kW) and goes all the way up to 3,733 kW (or 3.7 gigawatts). This wide range shows how varied the efforts are to incorporate renewable energy, from a small solar system that only has minor contributions to overall operations to a massive renewable energy installation that contributes most (if not all) of a brewery’s power needs.
• Solar power is by far the most prevalent form of renewable energy found at breweries. This may seem striking, but it actually makes sense because solar systems are the easiest and most feasible system to install on a building basis. Other forms of renewable energy (wind power, geothermal, hydroelectric, biomass) are not as well suited for individual building complexes to harness.
• Heineken, as a parent company, appears several times towards the top of the list. Many of these breweries existed for many years before Heineken bought them, but it does appear to be a trend that breweries have become more likely to install renewable energy capacity after being brought under the Heineken umbrella.
• There is also a clear spread of locations where these renewable energy breweries are located, on both coasts of the United States as well as three other continents. We’ll look into this more in a later graphic.

The next step is to plot these renewable capacities against the rating of the most popular beer. See the below graphs for this visual. When shown this way, a couple more conclusions can be made:

• It turns out that the beer from the brewery with the highest renewable energy capacity (The Abyss from Deschutes Brewery) is actually the one with the highest rating on this list, making the decision at the bar that much easier!
• However, dedication to renewable energy does not necessarily correlate with a well-received beer, as Birra Moretti (Heineken) and MillerCoors have discovered.
• While a smattering of breweries have made the commitment to exceed a gigawatt of renewable energy capacity, the majority of breweries have started smaller in the 500 kW range.

Click to enlarge

Click to enlarge

The last graphic put together is a map to represent where these breweries are spread across the country and the world. These maps show the top 20 breweries by capacity, with the size of the beer mug icon representing the relative size of that capacity (though note that between the U.S. map and the world map, scale of the maps are accounted for. For example, the Anheuser-Busch brewery has about half the capacity as the Namibia Breweries Limited. However because the U.S. map is about twice as big, both of these beer mug icons appear the same size).

The conclusions to be drawn from these maps include the following:

• Within the United States, the most breweries with the most renewable energy capacity are mostly focused on the coastal regions. Specifically, the largest capacities are found on the West Coast in California and Oregon. These are two states that are known to have among the most progressive energy policies, so it’s no surprise that breweries in these states have jumped in feet first to the renewable energy revolution.
• The United States does not have a monopoly at all when it comes to beer brewed with renewable energy. Not only are there a number of prominent breweries with renewable energy in Europe, but both the African and Asian continents are represented as well.

Click to enlarge

Click to enlarge

Honorable Mentions

As mentioned in the methodology section, there were a number of breweries that have initiatives in energy efficiency, sustainability, or other ‘green’ practices that were unable to be captured in this exercise that purely focused on renewable energy capacity. However, it only seems appropriate to still give these breweries a shout out for the positive efforts being put forth as well.

Yuengling has been recognized for its innovative Combined Heat and Power System (CHP) that  leads the way in this technology for the brewing industry.

Alaskan Brewing Company in Juneau, Alaska has a carbon reclamation system that captures carbon dioxide released during the course of the brewing process and reuses it in the packaging process.

While New Belgium in Fort Collins, Colorado appeared on the list above, another neat aspect of the brewery is that they are connected to the Fort Collins Microgrid (read about microgrids here) as a part of the Fort Collins Zero Energy District.

Anheuser-Busch, one of the largest beer companies in control of dozens of household name brand beers, made a big splash when it committed to ensure all of its purchased electricity came from renewable energy by 2025.

Similarly, the Carlsberg Group set a goal of using 100% renewable energy by 2022.

Sources and Additional Reading

Beer giant Anheuser-Busch InBev commits to 100 percent renewable energy: CNBC

Beer History Timeline: BeerHistory.com

BeerAdvocate.com

Carlsberg aims to produce beer with renewable energy: Justmeans

Deschutes Brewery 2015 Sustainability Story: Deschutes Brewery

Early History of Brewing: Michigan State University

Green Beer Not Just for St. Patrick’s Day: Power Finance & Risk

Prost! 5 Breweries Embracing Renewable Energy: Renewable Energy World

Renewable Heating and Cooling for Breweries: Environmental Protection Agency

Renewables roadshow: how the people of Newtown got behind solar-powered beer

Top 50 Solar Beer Breweries: Solar Plaza (and all sources cited therein)

What is the Combined Heat and Power System (CHP)?: Yuengling Brewery

Wind Powered Brewery: Great Lakes Brewing Co.