Spurred by state mandated renewable energy goals, Panasonic, Xcel Energy, and Younicos have formed a public/private partnership with the city and county to promote a microgrid centered around the Peña Station NEXT, a 382-acre transportation hub located near Denver International Airport. The Xcel Energy feeder for Peña Station NEXT already has 20% solar penetration and is expected to have 30% solar penetration by the time the microgrid project is completed in the first half of 2017.

The project will feature a 1.6 megawatt carport solar system, a 259 kW rooftop solar array installed mounted on top of the Panasonic Enterprise Solutions Company’s building and using Panasonic HIT solar panels, and a Younicos 2 megawatt/2 MWh lithium ion battery system with inverter and controls. The battery storage component will be integrated into the company’s innovative Y.Cube system. Panasonic’s Denver operations building, which has an intelligent building energy management system, will serve as the initial anchor load for the microgrid.

“We’re so excited about this ‘portfolio’ microgrid….because of how a system such as this can unlock more benefits for more stakeholders,” said Peter Bronski of Panasonic, “and how this public-private partnership approach to the microgrid and the battery system’s stacked use cases can strengthen the overall economics and value propositions.”

“Many microgrids and energy storage systems are deployed for single use cases by single entities, such as a corporation pursuing demand charge reductions or a university campus strengthening energy resilience. By contrast, the Peña Station NEXT project used a public-private partnership approach that resulted in a multi-stakeholder “portfolio microgrid.”

The battery energy storage system will have five usage scenarios:

1) Solar energy grid integration via solar smoothing ramp control and solar time shifting

2) Grid peak demand reduction

3) Energy arbitrage

4) Frequency regulation

5) Backup power for Panasonic’s network operations center

“As part of Xcel Energy’s Innovative Clean Technologies program in Colorado, we’re eager to demonstrate how energy storage can integrate more solar energy on our system. We’ll also examine how battery systems can become more cost effective by supporting the grid and providing reliability for customers,” said Beth Chacon, director grid storage & emerging technologies at Xcel Energy.

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An energy trade association which includes Apple, energy storage maker AES and solar giants SunPower and First Solar in its leadership has welcomed the proposal by US energy regulator, FERC, to remove barriers to participation in wholesale markets for energy storage and distributed energy resources (DERs).

Advanced Energy Economy (AEE), which seeks to have an impact on policy matters shaping future energy concerns, was among the groups submitting lengthy documents to FERC, which was soliciting views until 13 February on its Notice of Proposed Rulemaking (NOPR).

The NOPR was issued in November last year and proposed to integrate electricity storage into organised markets, specifically the wholesale markets operated by the US’ Regional Transmission Organisations (RTOs) and Independent System Operators (ISOs), which between them ensure the reliability of the majority of the country’s electricity supplies.

In order to remove barriers to participation in these markets, RTOs and ISOs would be required to alter tariff structures in order to recognise specific characteristics of energy storage resources and give energy storage operators a new classification for their assets.

Critical first step

Acting chairwoman of FERC, Cheryl LaFleur, was widely quoted as saying the regulator had received “a lot of comments” in her appearance at the National Association of Regulatory Utility Commissioners (NARUC) earlier this week.

Advanced Energy Economy, which also includes Johnson Controls, Schneider Electric and GE in its leadership council, along with general members that include Amaresco, Alevo, Tesla, Sunverge and Younicos, from the world of energy storage along with diverse mainstream names such as Amazon and Facebook, was “strongly supportive” of the FERC NOPR, its comments said.

“The NOPR is a valuable and critical first step in what must be a comprehensive effort to eliminate unjust, unreasonable, and unduly discriminatory barriers to participation for advanced energy technologies in FERC-jurisdictional wholesale markets,” AEE said.

Currently, FERC, which should have a five-person executive board, is led by former utility executive LaFleur and just one other board member, Collette D Honorable, who is set to step down in summer as her five-year term ends. The NOPR cannot be acted upon definitively until the full board is completed, which requires nominations from the White House, followed by a vetting process and confirmation vote, which some sources said could take at least two months.

Battery-friendly PJM’s ‘supportive’ response

PJM Interconnection, which is noted in energy storage for being the first of the US RTOs to allow batteries to provide frequency response grid services in a competitive market, said it was “supportive” of the NOPR. PJM coordinates wholesale markets in 13 US states and the District of Columbia.

“…Electric storage resources (“ESRs”) have already flourished in a number of PJM markets, and through its stakeholder process, PJM is working to expand its market rules to allow for additional opportunities for ESRs and distributed energy resources,” PJM’s comment said.

Nonetheless there were two areas where PJM said it wanted to see changes in the NOPR before it passed into a new set of rules. The first was on “key threshold issues such as potential jurisdictional issues” which relate to charging and discharging of behind the meter resources, the second was that rules should be flexible enough to accommodate the sometimes subtle differences between each RTO/ISO.    

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Call it one of the stranger battery storage systems out there. California municipalities are reportedly placing orders for as much as 1 MW of ice storage batteries from firm Ice Energy.

The Southern California Public Power Authority (SCPPA), an organization of the municipal utilities of 10 cities and one irrigation district is placing the order with the systems to be installed at consumer’s homes in a pilot program.

The battery storage market is booming – literally growing by several hundred percent annually over the last few years – in large part because traditional utilities are excited about the opportunity to avoid costly investment in new peaker plants. Using home battery storage systems enables these firms to defer that investment.

The ice battery systems are slated to be installed in about 100 homes with each 9.6kW system replacing the outdoor condensing units of homeowners’ air conditioning systems. Ice Energy’ batteries in off-peak (low energy cost) periods use copper coils filled with cold refrigerant to create ice from the homeowner’s regular tap water.

Once the ice is created, the residential Ice Bear 20 can cool a home continuously for four hours, and the company says that can save 95% of associated electricity costs compared with traditional HVAC units. The firm also has a large Ice Bear 30 for commercial customer. The system is particularly beneficial in states with large time of use differences in electricity pricing such as northeastern states like Connecticut and west coast states like California.

Utilities like those in the California alliance benefit from reduced peak load demand thus avoiding the cost of buying peak wholesale power or (eventually) building new peaker plants.

Ice Energy is not the only firm in the market for ice batteries though. Competitor Viking Cold reported last year that a California utility was interest its products to help counter the challenge the “duck curve” of solar energy energy supply and demand.

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In high school, I visited the Princeton Plasma Physics Laboratory’s fusion reactor, a huge metal donut replicating conditions at the center of our sun. But a more pedestrian 19^th century technology caught my eye: giant spinning flywheels providing an electricity buffer so the local electric grid wouldn’t blackout with every reactor startup. I’m reminded of that visit whenever I read reports of energy storage reaching its “holy grail” moment.

While a fusion reactor’s huge load may need storage to buffer its use, the rest of us don’t have to worry turning on our lights or microwave will destabilize the grid. That’s because the grid is a network that aggregates us for central power stations and averages all our idiosyncratic electricity demands into a smooth load profile managed by turning generators up and down. This is the historical reason the electric grid hasn’t needed storage: It is an expensive solution for problems easily solved other ways.

So how should a savvy investor interpret conflicting reports on grid-connected electric batteries’ breakthrough? Morgan Stanley calls it an “underappreciated disruptor,” while Deloitte earmarks it for “exponential growth – although not perhaps this year.” Has energy storage’s moment arrived, or is it still just around the corner?

Be Careful Of Narrow Energy Storage Market Opportunities

One way to understand these predictions is considering the energy storage market as a frozen pond in springtime. The battery production motivated by electric vehicles from giants like LG Chem, Tesla’s Gigafactory and Mercedes, hand-in-hand with plummeting battery costs, is turning up the market’s heat, thawing the pond. Yet like the thawing pond with scattered pockets of meltwater, energy storage has so far only taken off in various niche markets with especially enhanced value propositions.

One of the first utility-scale battery deployment niches has been ancillary services markets, which offer services for maintaining grid reliability. Payments made for small tweaks matching supply and demand on a second-by-second or minute-by-minute basis, often called “frequency response” or “regulation”, are particularly interesting here. In August 2016, the United Kingdom’s grid operator announced 201 megawatts (MW) of winning bids in its first-ever “enhanced frequency response” tender, dominated by battery storage and valued at $86.4 million.

Like scattered meltwater pools, these are relatively shallow markets in the much deeper electricity sector pond because they can only accommodate new projects by the tens and hundreds.

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In recent months, the Federal Energy Regulatory Commission (FERC) has taken several steps toward fully incorporating energy storage in U.S. wholesale energy markets — which, if successful, could be a major boon for the energy storage industry.

These actions reflect the fact that there’s an exponential amount of energy storage slated to come on-line, as well as its “unique abilities to help in different ways,” said Acting FERC Chairman Cheryl LaFleur, speaking this week at the National Association of Regulatory Utility Commissioners’ winter meeting.

“Sometimes it [benefits] transmission, sometimes it’s generation, sometimes it can help with ancillary services, and we’re proposing to require changes in the wholesale market to reflect that,” said the commissioner, who is a Democrat.

In November, FERC issued a proposed rulemaking that would require each regional transmission organization and independent system operator to remove any barriers in their tariff structure that are inhibiting the market participation of storage resources.

“We wanted them to be able to participate to the full extent of their capabilities,” said LaFleur.

The same proposal would also allow distributed energy resources, including but not limited to energy storage, to be aggregated and bid directly into organized wholesale markets. The proposal specifies that resources looking to participate at the wholesale level cannot already be receiving payments through the distribution system, such as net metering.

Commissioner LaFleur has expressed some concerns over opening up market competition and is viewed by some as more friendly to traditional market players. And with three seats currently unfilled on the five-member FERC panel, there’s uncertainty around how, and how quickly, energy storage and other advanced energy technologies will be recognized at the national level. 

Several clean energy stakeholders filed comments on Monday urging FERC to allow advanced energy technologies to compete on providing energy and reliability services.

The proposed rule was just the first step in opening up energy markets. FERC commissioners still have to decide whether to finalize it — which will have to wait until the open seats are filled. Regional markets will then have 18 months to change their tariffs, which is a process that goes through FERC review and is also judicially challengeable.

“These technologies aren’t new,” said Arvin Ganesan, vice president of federal affairs at Advanced Energy Economy. “So it’s not a matter of whether they can technically provide [grid] services, but it becomes a question of whether RTOs will change their tariffs to allow these technologies to compete to provide that service.”

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The news has been flying thick and fast about Germany-based sonnen, maker of the sonnenBatterie “eco compact” energy storage system. Billing its technology as “the smart way to capture the sun,” sonnen seems determined to race neck and neck with Tesla to fill strong demand in the US for small scale batteries with slim, sleek silhouettes.

In the latest development, sonnen has just just announced the opening of a new manufacturing and R&D center in Atlanta, Georgia. So, why Atlanta?

Another New Innovation Hub For Atlanta

The new facility, dubbed the sonnen InnovationHub, will start churning out product in April.

As an R&D facility, the InnovationHub will ramp up sonnen’s US business, which is already growing at an “exponential” rate according to the company. Here’s a snippet from Christoph Ostermann, sonnen Group CEO:

We expect that linking our US manufacturing and R&D teams in one facility will increase the rate of product innovation, and enable us to better adapt to the future needs of the high-growth U.S. residential energy storage market.

Like Tesla, sonnenBatterie is based on lithium-ion technology. One difference is that sonnnen enables its customers to dip into the community aspect of small scale, distributed energy production and storage, paving the way for the “virtual power plant” of the future:

Through its sonnenCommunity, energy independent homeowners throughout Europe can produce, store and share their own electricity. sonnen’s latest developments, the sonnenFlat-Box, which connects non-solar customers to the sonnenCommunity and grid services, and the sonnenFlat tariff, which provides community members with energy at $0 for 10 years, are changing the way energy is used.

As for the choice of Atlanta, that’s a natural. Sonnen already has a foothold in California and when it went shopping for an east coast location, Atlanta’s Midtown Alliance probably caught its eye with pitches like this:

Vibrant. Innovative. Sustainable. A community at the epicenter of life and business, urban and natural, technology and culture. Home to the city’s premier green space, historic neighborhoods and Southern landmarks. This is Midtown Atlanta – in the heart of it all.

Midtown Atlanta’s Innovation District is already a hotspot for clean tech companies and other R&D, anchored by Georgia Tech University, so there’s that.

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Profitable production of electric vehicles is highly important. Our capitalist society revolves around profitability and therefore, if electric vehicles are to prevail over gas-powered cars, they need to be profitable to manufacture in mass.

A new study published this month by McKinsey & Company and embedded below looks into how automakers can move past producing EVs as compliance cars and “drive electrified vehicle sales and profitability”. Unsurprisingly, it describes battery economics as an important barrier to profitability and though the research firm sees a path to automakers making a profit selling electric vehicles as battery costs fall, it doesn’t see that happening for “the next two to three product cycles” – or between 2025 and 2030.

That’s despite battery costs falling from ~1,000 per kWh in 2010 to ~$227 per kWh in 2016, according to McKinsey.

The company wrote in the report:

Despite that drop, battery costs continue to make EVs more costly than comparable ICE-powered variants. Current projections put EV battery pack prices below $190/kWh by the end of the decade, and suggest the potential for pack prices to fall below $100/kWh by 2030.

We are talking about complete battery pack cost and not just the battery cells. The costs of both are often confused.

Automakers capable of staying ahead of that cost trend will be able to achieve higher margins and possible profits on electric vehicle sales sooner.

Tesla is among the automakers staying ahead of the trend. While McKinsey projects that battery pack prices will be below $190/kWh by the end of the decade, Tesla claims to be below $190/kWh since early 2016.

That’s how the automaker manages to achieve close to 30% gross margin on its flagship electric sedan, the Model S.

Though the Model S has a starting price of $68,000 and battery costs need to fall again in order to allow a starting price of $35,000, like for the upcoming Model 3.

Tesla aims to reduce the price of its batteries by another 30% ahead of the Model 3 with the new 2170 cells in production at the Gigafactory in Nevada.

It should enable a $35,000 price tag for a vehicle with a range of over 200 miles, but McKinsey sees $100/kWh as the target for ” true price parity with ICE vehicles (without incentives)”:

Given current system costs and pricing ability within certain segments, companies that offer EVs face the near-term prospect of losing money with each sale. Under a range of scenarios for future battery cost reductions, cars in the C/D segment in the US might not reach true price parity with ICE vehicles (without incentives) until between 2025 and 2030, when battery pack costs fall below $100/kWh, creating financial headwinds for automakers for the next two to three product cycles.

It matches the estimates of most battery manufacturers, but of course, Tesla is again pushing for a more aggressive timeline. CEO Elon Musk has previously hinted at a possibility of achieving a battery cost of $100 per kWh in 2020 – 5 to 10 years before most estimates.

They plan to achieve the price target with economies of scale and manufacturing efficiency improvements through the Gigafactory program. Whether they can achieve it or not remains to be seen, but it’s not impossible if they are truly currently below $190 while projections didn’t estimate that price point until 2020.

It wouldn’t be surprising to see other automakers following Tesla with their own efforts to build giant battery factories in order to reach similar price points. Another explanation for the cost lead could be the type of cell and the pack architecture. Tesla has been mostly alone in producing battery packs for electric vehicles using thousands of individual cylindrical li-ion battery cells in each pack. In contrast, established automakers, like Nissan with the LEAF or even GM with the Chevy Bolt EV, have been using fewer but larger prismatic cells to build their electric vehicle battery packs.

Recently, new electric vehicle companies have been following Tesla with cylindrical li-ion battery cells instead of prismatic cells like most automakers.

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An Adelaide company has developed a silicon storage device that it claims costs a tenth as much as a lithium ion battery to store the same energy and is eyeing a $10 million public float.

1414 Degrees had its origins in patented CSIRO research and has built a prototype molten silicon storage device which it is testing at its Tonsley Innovation Precinct site south of Adelaide.

Chairman Kevin Moriarty says 1414 Degrees’ process can store 500 kilowatt hours of energy in a 70-centimetre cube of molten silicon – about 36 times as much energy as Tesla’s 14KWh Powerwall 2 lithium ion home storage battery in about the same space.

Put another way, he says the company can build a 10MWh storage device for about $700,000. The 714 Tesla Powerwall 2s that would be needed to store the same amount of energy would cost $7 million before volume discounts.

Most of us nowadays are lucky enough to not think twice before consuming electricity in our home. From switching on kettles to flipping a switch, we’ve become accustomed to the blink of an eye being a transition to an invisible force that spreads through the walls and powers our appliances and devices.

Electrical grids currently bring energy to millions of people, but the fundamental characteristics of the system are strained and flawed. In addition, the costs to access such energy networks in remote areas can be high. Grid efficiencies are also very low. Loss during generation and transition phases cause efficiencies to be as low as 33%.

The hindrances, coupled with the impacts of fossil fuel electricity method, the crippling indirect cost of healthcare (through respiratory illnesses) and global warming clearly show that the electrical grid is need of a major revamp.

Where do we go from here?

To decentralise the electricity supply and accelerate the adoption of large volumes of electricity from renewable sources will require advances in energy storing technologies. The ability to efficiently, and reliably, store intermittent energy will keep homes warm and the kettles going through the cold and dark winter days, and the calm summer nights.

Luckily for us, there are many researchers around the globe innovating and developing novel technologies to help make single-home and community energy storage as widespread as current power lines that visually pollute our neigbourhoods.

Anyone would be negligent to discuss home battery technologies without at least acknowledging Tesla. Tesla’s small ‘Powerwall 2’ battery can store a huge amount of energy which is able to power a 2-bedroom home for a full day. However, Tesla is currently facing fierce competition from other Li-ion battery producers.

German manufacturer, Sonnen, offer a similar home battery and is developing an AirBnB-style platform for electricity sharing. Tesla also face sharp competition from China. Many Chinese companies have recently come out with promises to undercut Tesla’s batteries and has even put into question whether Tesla’s Gigafactory is still a worthwhile and viable endeavour.

It is critical to drive Li-ion innovation, as it continues to be the standard ‘tried-and-tested’ method for rechargeable energy storage. This extends from homes, to vehicles and mobile devices.

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