There was a near-70% increase in capacity of operational energy storage projects in China paired with solar energy from 2018 to 2019, according to figures recently published by the China Energy Storage Alliance (CNESA).

The Alliance has just released a set of quarterly deployment figures analysing the energy storage industry around the world in 2020 so far, while also assessing the drivers for solar-plus-storage in 2019 and going forwards.

CNESA found that around 800.1MW of energy storage project capacity – including thermal molten salt as well as batteries and other technologies – was paired with solar in China by the end of 2019, an increase of 66.8% from figures taken at the end of 2018.

The Alliance’s in-house analysis team said 320.5MW of newly operational solar-plus-storage capacity came online during 2019 in China, a 16.2% increase on capacity added during the previous year. The vast majority of total capacity, 625.1MW, or 78.1%, was paired with centralised generation, with the remaining 21.9%, paired with distributed solar generation.

‘Solar-plus-storage model will become one of the primary models for energy storage development in the future’

CNESA chairman Yu Zhenhua and senior research manager Ning Na said that with solar in China reaching “near grid parity” and the industry moving from a subsidised to unsubsidised model of deployment, energy storage could help confront the challenges of integrating variable solar generation and putting energy on the grid at times when it is most needed rather than at the time it is generated.

MingYang Smart Energy has deployed energy storage technology at the 43MW Huian Quanhui offshore wind farm in China’s Fujian province.

The turbine manufacturer’s subsidiary, Quant-Cloud, developed the storage technology to enhance the typhoon resiliance capabilities of MingYang’s offshore wind turbines.

At the Huian Quanhui wind farm an energy storage system is installed in the tower of each turbine.

It marks the first installation of an energy storage system in the region’s typhoon zone, following the demonstration of MingYang’s MySE5.5MW typhoon-proof offshore turbine at Xinghua Bay offshore wind farm.

When a power outage is caused by typhoon, normal operation of the wind turbine’s yaw system has to be maintained to prevent excessive load on the grid, caused by yaw failure, said MingYang.

Backup power supply can ensure the continuous operation of the yaw system in the extreme case of power failure and reduce the load of the turbine, said MingYang.

MingYang’s Quant-Cloud team initially proposed a solution of applying an energy storage system to a wind turbine in a typhoon area to ensure safety during a grid outage.

Compared with a diesel generator, the energy storage system is a cleaner, safer alternative, MingYang said.

Quant-Cloud’s technology also deploys ‘big data’ to support the turbine to track wind direction changing in real time when the grid is cut off during a typhoon, to reduce the impact of extreme winds blowing against the nacelle.

One of the biggest challenges for renewable energy research is energy storage. The goal is to find a material with high energy storage capacity and energy storage material with high storage capacity that can also quickly and efficiently discharge a large amount of energy. In an attempt to overcome this hurdle, researchers at the Queensland University of Technology (QUT) have proposed a brand-new carbon nanostructure designed to store energy in mechanical form.

Most portable energy storage devices currently rely on storing energy in chemical form such as batteries, however this proposed new structure, made from a bundle of diamond nanothread (DNT) does not suffer from the same limiting properties as batteries, such as temperature sensitivity, or the potential to leak or explode. I have previously written about carbon nanotubes, and their applications in everything from Batman-like artificial muscle, to an analogy of the fictional element Vibranium, but a lot of research around carbon nanotubes is already focused on energy harvesting and energy storage applications.

What makes this energy storage method different is the method by which energy is stored, and also the related increased robustness of the resultant material. Dr Haifei Zhan and his team at the QUT Centre for material science used computer modelling to propose the structure of these ultra-thin one-dimensional carbon threads. The theory is that these threads should be able to store energy when they are twisted or stretched, similar to the way we store energy in wind-up toys. By turning the key, we force the spring inside into a tight coil. Once the key is released, the coil wishes to release the extra tension held within it and begins to unfurl. In doing so it transfers that mechanical energy into the movement of the toy’s wheels.

In times when technological advancements happen every second, it’s hard to imagine an industry that has gone untouched by the tech revolution.

And energy — batteries in particular — is going through a renaissance very quickly due to the new opportunities presented by the innovation waves hitting the market. Throughout my experience working with various companies — from startups developing new energy efficiency solutions like batteries, to behemoth companies pushing innovation in their respective spaces — I have noticed a large shift globally in how innovation has been transforming various industries. And energy is not an exception to this rule.

Increasingly and unexpectedly, the small devices that powered our phones or computers only a few years ago have the capacity to power cars and even buildings today. And it’s not just the size-to-power ratio that has been changing — the sources of energy have been dramatically changing too.

According to UBS (via CNBC), energy storage costs will fall between 66% and 80% over the next decade, while the energy market will grow to $426 billion around the world. As renewable sources become cheaper and help ensure less damage to the environment, new-age batteries could become the solution to a smooth transition from fossil-driven fuels to renewable sources with a focus on solar and wind energy.

Not only is there a massive shift toward more sustainable, cleaner energy sources in general, but there also seems to be an improved capacity for energy storage and an introduction of more effective techniques with the goal to gradually, fully eliminate the need for natural gas.

The increasing mandates and incentives for the rapid deployment of energy storage are resulting in a boom in the deployment of utility-scale battery energy storage systems (BESS). In the first installment of our series addressing best practices, challenges and opportunities in BESS deployment, we will look at models and recommendations for land use permitting and environmental review compliance for battery energy storage projects with a particular focus on California, which is leading the nation in deploying utility-scale battery storage projects.

Land use permitting and entitlement

There are three distinct permitting regimes that apply in developing BESS projects, depending upon the owner, developer, and location of the project.

Utility-Sponsored Projects – Public Utilities Commission

BESS projects developed or owned by the state’s investor-owned utilities are subject to California Public Utilities Commission (CPUC) jurisdiction under General Order (GO) 131-D. GO 131-D governs permitting for utility-owned infrastructure including the potential need for a Certificate of Public Necessity and Convenience (CPCN) or Permit to Construct (PTC) and related environmental review pursuant to the California Environmental Quality Act (CEQA). For BESS projects approved to date, the utilities have invoked an exemption from GO 131-D qualifying such projects as “distribution” facilities falling below applicable 50 MW and 50 kV thresholds, thereby avoiding CPCN and PTC compliance and California Environmental Quality Act (CEQA) review and significantly streamlining permitting.

Private Land Projects – State and Local Government Agencies

For BESS projects developed or owned by private entities, permitting jurisdiction is dependent upon the location of the project, typically either on private, federal or state land, and governed by the applicable governmental agency with jurisdiction over that property. The majority of BESS projects developed to date are located on private land – typically near substation infrastructure and/or generating facilities – and subject to the applicable county or city zoning and land use ordinances and, if necessary, associated CEQA review.

What do people in energy storage business development do?

2019 was the biggest year ever for energy storage in the United States. As of late 2019, there were planned or contracted utility-scale storage projects in 47 states, per Wood Mackenzie.

Laura Meilander is one of the people working to expand the energy storage market even further. Meilander is vice president of business development at Convergent Energy + Power, a storage-focused developer, owner, and operator based in New York. She is responsible for growing Convergent’s book of business with utility companies.

“The [utility business development] team’s goal is to build as many energy storage projects as possible, as long as it is advantageous and feasible for both us and the utility customer,” Meilander explained.

Front-of-the-meter storage has found a foothold across the United States by providing a range of services, according to Wood Mackenzie’s most recent Energy Storage Monitor. Services for utilities include ancillary services in the territories of PJM, NYISO, ERCOT, ISO-New England and CAISO, standalone and solar-paired capacity applications, and distribution upgrade deferral and non-wires solutions in constrained parts of New York and Massachusetts.

“As part of my role, I identify and connect with utilities that could benefit from a battery storage system. As a result, I am constantly communicating with potential customers,” said Meilander.

Meilander’s day-to-day involves finding potential customers, pitching her company’s value proposition to prospects, and then tracking her progress on the back end in her company’s customer relationship management (CRM) platform.

Having a strong CRM tool is crucial in this kind of role, where organization is key. Keeping track of who she has been in touch with helps Meilander stay organized and allows her colleagues to see the status of her client meetings.

“Key characteristics” of sector leaders is that they’re able fill multiple roles at once, Ricardo F. Rodriguez, research analyst with Guidehouse Insights and report author, told Utility Dive, including providing “turnkey solutions,” using innovative financing, forecasting future revenue streams and using integrated software platforms.

The top distributed energy storage systems integrators now do fewer standalone integrations or “one-off” projects.

ENGIE, the company atop the leader board, has found success through a mergers and acquisitions strategy, according to Rodriguez. “ENGIE has been able to expand its product offerings through a series of acquisitions that include Green Charge, Op Terra, EV-Box, Ecova, and SoCore.”

Tesla has gained ground in the industry not through acquisition, but by developing internal capabilities, according to Rodriguez. Tesla’s ecosystem of software includes machine learning capabilities that enable customers to optimize energy storage and use.

Competition in the market has intensified as “the number of cities, states, and businesses committed to carbon reduction goals is swelling and the demand for onsite generation of renewable energy is mounting,” according to the report.

Analysts at Guidehouse Insights evaluated players in the DES integration market using 10 criteria: geographic reach; go-to-market strategy; partnerships; pricing; product performance; product portfolio; sales, marketing, and distribution; staying power; technology; and vision.

“The recognition by Guidehouse is a testament to the hard work of the Enel X team around the world and underscores our ability to deliver customized energy solutions that meet the economic and sustainability needs of any customer,” Surya Panditi, head of Enel X North America told Utility Dive in an email.

One of the pioneers of using aggregated residential energy storage systems to create virtual power plants (VPPs), Sunverge has been active in the market since 2011 and Martin Milani became chief executive officer (CEO) in late 2017, taking over from company founder Ken Munson. The company has done projects in geographies including Canada, Australia and Japan, but is presently most-focused on its home market in the US. Here’s some of the backstory and where the company is going these days, as told to Andy Colthorpe.

The term VPP is old. It comes from energy efficiency and demand response and in energy storage the ability to connect or curtail loads. For example, reducing load by half a megawatt would be like having a half a megawatt power plant, hence the term virtual power plant.

Sunverge had a slightly different point of view. Curtailment was obviously one thing but the ability to actually use energy storage in conjunction with solar, to pump energy back into the grid to do things like volt/VAR optimisation, reactive power support, frequency response and frequency regulation. From very early on, Sunverge also saw those things which aren’t virtual at all – they’re actually very real.

The beauty of distributed storage controlled and aggregated by a multi-service platform is that there are many different ways to monetise the services at any given time on both sides of the meter.

In the US you have the concept of nodal pricing and locational marginal pricing, so electricity has a certain value, a certain price, at a certain location, at a certain time – that’s why energy storage can be extremely effective in addressing those kinds of needs as well.

I think a lot of people thought this market was going to move a lot quicker back in 2014 and 2015 than it really did. That’s been a challenge for Sunverge and a challenge for everyone else. In many ways, Sunverge has been able to weather that a little bit better than some of the others because [as well as the solar-focused market] we also focused on the vertically integrated utility and in fact we’ve had utility programmes where they are actually applying energy storage not just for Demand Side, but also to address a grid condition like distribution asset upgrade deferral to deal with feeder load situations, to deal with capacity [issues] and over-penetration of solar.