More than any other part of the climate change story in 2018, the continuing boom in renewable energy, energy efficiency, and affordable battery storage was a source of excitement, momentum, and hope.
By the time the year began, the plummeting cost of clean alternatives was already old news, with one industry publication stopping to mock  a posted price of 1.79 cents per kilowatt-hour that still got Saudi Arabia the headline it wanted for low-cost solar development. And Project Drawdown  had published its inventory of 80 proven solutions and 20 “coming attractions” that can drive the shift to a post-carbon future. In 2018, analysts and project developers showed that affordable, reliable technologies are a cornerstone of that transition, with far greater potential ahead if investment can scale up to meet the decarbonization challenge laid out  in the landmark Intergovernmental Panel on Climate Change (IPCC) report on 1.5°C pathways.
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A $26-Trillion Transformation
The Global Commission on the Economy and Climate laid out  the sheer scope of the off-carbon opportunity, reporting that the “bold action” needed to address the climate crisis could deliver at least US$26 trillion in economic benefits through 2030, produce more than 65 million low-carbon jobs, prevent 700,000 premature deaths, and generate $2.8 trillion in government revenues in that year. Renewable electricity posted record growth, but both the Renewables 2018  Global Status Report and the International Renewable Energy Agency  warned that a great deal more will be needed to match the targets countries adopted under the Paris Agreement, much less the more ambitious imperatives in the IPCC report.
A carbon bubble driven by cheap renewables risked  triggering a global economic crisis. Subsidy-free solar swept  Europe, as countries reaped the rewards for their early support for the technology. In the United States, veteran Vox.com climate columnist David Roberts said  the precipitous fall in solar costs showed that government support programs work, renewables boomed  in 2017 despite a hostile White House administration and state-level uncertainties, and corporate buyers set  a massive new record for renewable energy procurement.
The energy transition council established by then-Canadian natural resources minister Jim Carr anticipated  a future of wind, solar, energy efficiency, and the world’s “cleanest” liquefied natural gas production. U.S. utilities and global fossils tried to fight  public opinion and slow down the transition to 100% renewables; and fossil-focused Houston, Texas, recognized  that it risked Rust Belt status if it didn’t embrace a renewable energy future. Regional utility planners at PJM Interconnection concluded  that big power supplier FirstEnergy Solutions could replace four gigawatts of coal capacity with renewables and efficiency without compromising grid reliability, and fossils’ days were numbered after the Trump-appointed Federal Energy Regulatory Commission cleared the way  for battery storage to compete with conventional power plants.
South Africa mapped out  a shift from coal and nuclear to renewables and natural gas, Danish Oil and Natural Gas transformed  itself into an offshore wind powerhouse, and European renewables outpaced  coal in 2017, though a full coal phaseout was still very much a work in progress. Pollinator-friendly solar sites boosted  diversity while earning community support in Minnesota, and new wind and solar installations had  the potential to green the Sahara. In Australia, local investment drove  wider community benefits from wind farm development, a regulator reported  the new Tesla mega-battery was working faster, smarter, and cheaper than competing natural gas plants, and the “Tesla effect” fueled  enthusiasm for renewables and storage.
Renewables accounted  for 10.3 million jobs worldwide in 2016, en route to 28 million in 2050; the massive job count had  renewables and efficiency taking hold in every U.S. zip code; an Ohio energy innovation study showed  the potential for 20,000 new jobs powered by US$25 billion in new investment; and Alberta introduced  a new training course for solar farm and wind technicians.
The Drive for 100% RE
With some exceptions, the drive for 100% renewable electricity gained traction in 2018, with yet another low-carbon study concluding  the apparently audacious target is doable and affordable. Renewables kept beating  fossil energy on cost, electricity prices below zero heralded  the end of the “energy mainframe,” and an Australian utility executive declared  the end of 24/7 baseload power. The “electrification of everything” was on track to triple  global grid capacity by 2050, renewables and storage began outpacing  natural gas for peak power supply in the United States, Bloomberg said  renewables would deliver 64% of global electricity supply by 2050, Project Drawdown said  greater flexibility would enable an 80% renewable grid, and other studies showed  100% renewable energy grids were already a reality.
There was some pushback on the 100% renewable energy concept, with Vox.com’s David Roberts suggesting  a reality check for deep decarbonizing targets, and University of Guelph geographer and community activist Kirby Calvert contending  that cities need practical programs more than “earnest” 100% renewable energy targets. A study urged  grid operators to treat solar as an asset to be maximized rather than as a problem to be managed. The Calgary-based Canadian Energy Research Institute said  Canadian wind and bioenergy resources came in ahead of natural gas for the most affordable carbon reductions, and First Nations sought  a bigger stake as Alberta opened a 700-megawatt tender for renewable energy procurement.
The Energy Mix stopped reporting news of 500-megawatt, one-gigawatt, even two-gigawatt renewable energy installations because they just weren’t news anymore, and readers were already getting too much email. (Which meant there was another avalanche of news out there, beyond the examples in this snapshot.) A five-gigawatt solar farm won  planning approval in India, and the country set  a mandatory renewables target for big power consumers, as falling solar costs and alarming levels of air pollution threatened  a dominant but dirty coal industry. India also began encouraging  hybrid wind and solar facilities to get the most out of both technologies.
Wind was set to become  Europe’s biggest electricity source by 2027, Sweden expected  to reach its 2030 renewable energy target in 2018, offshore wind in the United Kingdom was on track to hit  price parity in 2025 and grow sixfold by 2030, UK renewable energy capacity exceeded  fossils for the first time, and subsidy-free British renewables were on track  to push out natural gas by 2030. Affordable renewables were seen  as an enabler for tougher EU climate targets, the low price of new renewables was undercutting  existing fossil plants on the U.S. grid, and the economics of new coal and gas plants crumbled  as solar and wind hit  an inflection point. Analysts took  a wait-and-see attitude to Saudi Arabia’s US$200-billion, 200-gigawatt solar plan, the world’s biggest if it had come to pass—and sure enough, the deal collapsed  later in the year.
Low Prices, High Targets
Average wind power costs came in at 2.2  cents per kilowatt-hour in the United States, a U.S. utility received “fabulous” bids of 2.1  cents for wind+storage and 3.6 cents for solar+storage, and a Nevada utility project came in at 2.37  cents. More than 100 cities produced  at least 70% of their electricity from renewables in 2017, San Diego set  a 2035 deadline to meet a 100% renewable energy target, Regina settled  on 2050, and Edmonton planned  to power 100% of its operations with renewables by 2030 after the Republican mayor of Georgetown, Texas, extolled the benefits of making the shift. Boston Mayor Marty Walsh, co-chair of the 400-member Climate Mayors network, invited  his counterparts across the United States to share their energy demand data as a first step in pooling their requests for proposals to renewable energy developers. California issued  a new mandate that boosted energy-efficient buildings and rooftop solar, a Yale University undergrad had a plan  to put more solar panels on rental rooftops, and zero-energy homes were affordable  enough for mainstream markets. A proper microgrid could have prevented  an 11-hour power outage at the world’s busiest airport in Atlanta, and a study by Stanford University’s Mark Z. Jacobson showed  multiple pathways to grid stability in a 100% renewable energy future. De-manufacturing and recycling emerged  as a new challenge for aging solar modules.
Modern bioenergy supplied  half of the world’s renewables and showed big potential for future growth, but the EU renewable energy directive risked  triggering enough deforestation to destroy global carbon sinks. In her closing summary of the annual Scaling Up Bio conference in Ottawa, Montreal-based environmental lawyer Karine Péloffy envisioned  an “economy without a tailpipe”, but cautioned participants that “there are no silver bullets: if you think you have one, you haven’t thought about it enough, or thought about it from an ecosystem approach.”
Financing for the post-carbon transition was a mixed story in 2018. A report showed  China leading the world in clean energy investment in 2017, and the country topped  the annual Renewable Energy Country Attractiveness Index for the third year in a row, with the United States regaining second spot. The International Energy Agency saw  renewables investment falling and fossil projects receiving more. Analysts predicted  a solar and offshore wind boom for the Asia-Pacific, Apple’s US$300-million renewables fund was expected  to power a million homes in China; and southeast Asia was urged  to scrap its fossil subsidies in favour of affordable, reliable renewables.
The Canadian Pension Plan Investment Board closed  renewable energy investment deals in India and Ontario, a new C$2.3-billion production facility in Quebec was set to deliver  durable, all-glass solar panels, the Whabouchi mine in northern Quebec, on the territory of the Cree Nation of Nemaska, looked  like an early winner in the race to supply lithium for electric vehicle batteries, and Energy Mix correspondent Will Dubitsky’s analysis showed Canada missing  the moment to develop a homegrown clean transportation industry.
Energy for the Rest of Us
At its best, the shift to energy efficiency and renewable energy isn’t just a great investment opportunity, nor even just a climate solution. For decades, community energy developers and advocates have seen the potential for a more democratic energy system, where the most vulnerable in any society can better control their energy at less cost. As one organizing handbook put it in the early 1980s, no one should ever have to choose between heat and rent.
Colorado kept making news on energy access and equity, with wind becoming  a new cash crop for struggling farmers, Denver busting  down barriers to community solar, and state low-income solar programs setting  an example for other U.S. states. Rural electrification programs needed  to place greater emphasis on distributed renewables, and U.S. fossils’ war on wind was hurting  Oklahoma’s poorest citizens. In storm-ravaged Puerto Rico, local solar emerged  as the best way to rebuild after Hurricane María, though analysts fretted  about the potential for scandal as the island began a drive toward 100% renewable energy.
Decentralized renewables brought  electricity to rural Nigerians, crowdfunded solar delivered  a new cash crop for small-scale farmers in Kenya, a “next-gen” utility in Africa bundled  pay-as-you-go solar and Internet services, a MasterCard-based system aimed  to serve 625 million off-grid customers, an emerging solar deal in sub-Saharan Africa looked set  to serve 250 million more, and Ukraine was poised  to go big on renewables.
In Canada, the David Suzuki Foundation announced  plans to promote community-led renewable power. Ontario demolished  two obsolete coal smokestacks to make way for a 44-megawatt solar farm. But a few months and one election later, a new government proceeded to demolish  the province’s successful carbon cap-and-trade program and cancel 759 renewable energy contracts, while pushing ahead with a costly nuclear relicencing scheme. The province undercut  investor confidence by cancelling the virtually complete White Pines wind farm at a cost of at least C$100 million to ratepayers, then introduced  a poorly detailed climate plan with a new carbon reduction target that was 30 million tonnes less stringent than the one it replaced.