Worldwide energy storage: a diverse and evolving market

One of the figures from the Energy Storage World Markets Report, published by the Energy Storage World Forum.

One of the figures from the Energy Storage World Markets Report, published by the Energy Storage World Forum.

By Mike Stone

A report published by the Energy Storage World Forum predicts continued rapid growth in energy storage worldwide.

The Energy Storage World Markets Report has been produced in partnership by Dufresne, the organisers of the Energy Storage World Forum, and analyst firm Azure, which is currently tracking storage projects that amount to around 3GW.

“Over the next 10 years,” states the report, “the combination of growing policy support and the emergence of commercial markets will propel the market into a new stage of growth.”

There are encouraging signs of market development and growth in different territories around the world, showing a highly diverse range of drivers, approaches and conditions, it says. 
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Ice Energy’s plan to end the duck curve

Ice Energy hopes to counter the Californian duck curve by replacing traditional air conditioning with ice energy storage. Pic: Ice Energy.

Ice Energy hopes to counter the Californian duck curve by replacing traditional air conditioning with ice energy storage. Pic: Ice Energy.

By Jason Deign

Thermal energy storage developer Ice Energy is gearing up to increase sales of a product that has the potential to end California’s famous ‘duck curve’.

The Southern California Public Power Authority (SCPPA) has already announced plans to buy up to 100 of Ice Energy’s Ice Bear 20 residential cooling systems, which completed testing about a month ago.

The 20 ton-hour systems use energy when there is excess production, for example at night, to create ice that is then used for cooling during peak electricity consumption periods, such as evenings.

“At 9.6kW per Ice Bear 20, the order will potentially add nearly 1MW of new energy storage and peak demand reduction capacity to the SCPPA network, saving energy, improving efficiency and reducing emissions,” said Ice Energy.

The deal marks Ice Energy’s debut in the residential energy storage market, a move the company unveiled in Energy Storage Report last year, and follows growing utility interest in using Ice Bears for demand response. 
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The utility response to grid defection

Utility responses to grid defection will be one of the many topics being discussed at the Energy Storage World Forum in Berlin this May. Pic: Energy Storage World Forum.

Utility responses to grid defection will be one of the many topics being discussed at the Energy Storage World Forum in Berlin this May. Pic: Energy Storage World Forum.

By Mike Stone

Utilities are seeking new ways to respond to grid defection as the economics of solar-plus-storage make it easier for homeowners to disconnect.

A report called The Economics of Grid Defection, by the Rocky Mountain Institute (RMI), concludes that in territories such as Hawaii off-grid solar plus storage is already economically competitive with remaining on the electricity network.

Tens of millions of customers will defect in other areas such as California and New York as solar plus storage achieves grid parity by 2030, and possibly even 2020, the RMI predicts.

And grid defection is by no means a US-only phenomenon.

In many parts of Australia and Germany, for example, the business case for residential PV and storage is still far from convincing, but that has not stopped homeowners from installing systems for a whole host of other reasons. 
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Why AMS sees promise in Texas

AMS sees potential in helping change the Texas energy market to one based more on the sun. Pic: Pixabay.

AMS sees potential in helping change the Texas energy market to one based more on the sun. Pic: Pixabay.

By Jason Deign

San Francisco, USA-based Advanced Microgrid Solutions (AMS) is expanding into Texas as part of moves to grow its presence outside its core California market.

The company this month announced a USD$3.24m US Department of Energy grant-funded project with Pedernales Electric Cooperative (PEC), of central Texas, to investigate the use of storage with distributed solar generation.

The news came hot on the heels of another deal, with Texas Electric Cooperatives (TEC), to showcase a 200kWh AMS installation and offer energy storage systems at preferential rates to TEC’s member cooperatives.

“TEC is the co-op of co-ops,” said Manal Yamout, vice president of policy at AMS. “They have 75 co-op members, and what TEC does for them is bulk-buy poles and wires and now AMS batteries.”

The partnership is essentially a distribution deal that opens the door for AMS to sell batteries and services to consumer-owned electric cooperatives serving 2m homes and businesses in Texas, Oklahoma and New Mexico. 
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Convergent toasts pure-play developer model

Convergent is helping its customers cut costs using storage. Pic: Convergent.

Convergent is helping its customers cut costs using storage. Pic: Convergent.

By Jason Deign

New York, USA-based Convergent Energy and Power is seeing the fruits of sticking to a pure-play developer model after building a 75MW, 200MWh project pipeline.

Johannes Rittershausen, Convergent’s CEO, told Energy Storage Report that behind this pipeline of projects in operation, being built or under contract there was “hundreds of megawatts … of deals we’re working on.”

Even though the company is currently focused on just two countries, the USA and Canada, its business has been doubling every year for the last couple of years.

In the next couple of years, said Rittershausen, “I could easily see a scenario where we could do better than that. We can barely keep up. It’s a great market to be in.”

The most recent addition to Convergent’s portfolio is the 7MW, 7MWh Sault Ste Marie plant in Ontario, Canada, being built to store wind and solar energy under a three-year contract with the Independent Electricity System Operator (IESO). 
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GenCell’s secret for hydrogen world domination

GenCell fuel cell technology is being used for San Diego Gas & Electric substation backup power in California. Pic: GenCell Israel.

GenCell fuel cell technology is being used for San Diego Gas & Electric substation backup power in California. Pic: GenCell Israel.

By Jason Deign

GenCell, an Israeli fuel-cell maker, yesterday trumpeted a major win as part of an under-the-radar strategy to get utilities relying more on hydrogen.

The company said San Diego Gas & Electric (SDG&E), the Californian utility, would be installing GenCell G5rx fuel cells for substation backup power.

Bloomberg reported the deal would cover an initial three substations, with 27 more to follow within three years. SDG&E is keen to use fuel cells as a way of extending the backup power capacity at substations.

Backup power is a technical requirement at all utility substations. It is used to keep high-voltage circuit breakers open whenever there is a loss of power on the grid.

Most substations are equipped with lead-acid battery arrays that can supply backup power for up to eight hours. Beyond this, the utility usually has to switch to an alternative power source, such as a diesel genset. 
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Storage hopeful Alevo confirms PJM project

Alevo battery technology is entering commercial operation this month, as it installs six GridBank units for the PJM Interconnection Market. Pic: Alevo.

Alevo battery technology is entering commercial operation this month, as it installs six GridBank units for the PJM Interconnection Market. Pic: Alevo.

By Jason Deign

Alevo, a Swiss battery maker with operations in Concord, North Carolina, USA, has confirmed the first commercial delivery of its sulphur-based lithium-ion GridBank product.

The company is due to install six 2MW/1MWh GridBank units this month across three sites in Hagerstown, Maryland, to provide frequency regulation and other ancillary services to the PJM Interconnection Market.

Speaking to Energy Storage Report during European Utility Week last year, Alevo officials confirmed that two other projects were already “grid connected.”

The implication is that these two projects, a 8MW/4MWh deployment Lewes, Delaware, which was announced in March 2016, and a 10MW, 3MWh project in Georgetown, Texas, are non-commercial pilots.

According to the Charlotte Business Journal: “The company has taken longer than initially expected to get to commercial production of the battery and its control systems. 
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The value that led Enel to buy Demand Energy

Demand Energy installations are impressive... but it's the invisible energy storage software controlling them that is the real attraction for Enel. Pic: Demand Energy

Demand Energy installations are impressive… but it’s the invisible energy storage software controlling them that is the real attraction for Enel. Pic: Demand Energy.

By Jason Deign

Enel’s buyout of US project developer Demand Energy last week was largely down to a secret ingredient that has been cooking for several years.

While Washington State-based Demand Energy has a decent portfolio of projects in New York and closed last year with a microgrid deal in Costa Rica, the real lure for Enel is understood to have been its software platform, DEN.OS.

DEN.OS, which stands for ‘Distributed Energy Network Optimization System’, is a cloud-based platform for integrating energy storage and distributed generation that Demand Energy has perfected over the last eight years.

A critical early challenge facing the company was how to adapt its software to work in New York, a market characterised by longer-duration storage applications.

The market was of interest because the state’s Reforming the Energy Vision plan was creating new opportunities for storage to complement distributed generation in reducing demand, shifting load and adding resiliency. 
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