The price of household battery storage is defying hopes and expectations of significant price falls, with two of the leading manufacturers – Tesla and Enphase  – quietly lifting their prices in recent months.

The household battery storage market in Australia has been poised for take-off for a couple of years, but most consumers have been keeping their powder dry on the expectation that prices would continue the dramatic falls of the last few years.

Tesla set the scene with the release of their Powerwall 2 product in late 2016 which effectively halved the cost of battery storage, at least compared to the Powerwall 1, and forced most competitors to match those prices.

But nothing much has happened since. In fact, prices have now started to edge up.

Tesla quietly lifted the price of its Powerwall 2  by $US400 to $US5,900 in February this year, and the Australia price followed suit – to $A8,600. These prices do not include installation and other costs.  Prices for Enphase batteries have also risen slightly.

The rises are being blamed variously on supply bottlenecks and the jump in price of certain commodities, particularly cobalt.

A Tesla spokesman in the US told Greentech Media said the company “evaluates its global pricing of energy products based on various factors and continues to make improvements that will simplify homeowner experience.”

Enphase told RenewEconomy it blamed supply “bottlenecks” for its minor price increases, but said it hopes to be able to reverse these price rises later this year.

Lockheed Martin has received an order to supply about 17MWh of GridStar Lithium energy storage systems to Peak Power, an energy storage services provider.

The units will be installed in Ontario, Canada, and along the East Coast of the United States.

Lockheed Martin Energy vice president Frank Armijo said: “Peak Power Inc. is an innovative company that we are excited to collaborate with to deploy our robust, reliable GridStar Lithium systems.

“These projects are an example of solutions we’re providing to address complex global energy challenges.”

Peak Power Inc. will use its own intelligent Synergy software, combined with GridStar Lithium energy storage systems, to forecast the most expensive peak demand events and shift energy consumption for its customers during these peak moments.

This results in a reduced amount of peak demand on the grid and lower electricity costs for customers.

Peak Power CEO Derek Lim Soo said: “The Lockheed Martin name is a brand that is associated with a proven track record and high-quality design and engineering.

“Our software performance this past year in Ontario allowed us to hit all five coincident peak events that form the bulk of our customer’s bills within a one-hour window, with 100% accuracy.

“We’re looking forward to integrating our software with Lockheed Martin’s reliable and innovative solutions to support our customer’s needs and the future of our distributed grid.”

Lockheed Martin has delivered and has a pipeline of energy storage solutions to address a range of applications, including reducing peak loads on the electrical grid and integrating renewable energy sources with energy storage.

These projects have been installed in many locations, including Canada.

Lockheed Martin Canada CEO Charles Bouchard said: “Our mission is to deliver solutions to our customers’ most complex problems through applying innovative approaches, and through establishing strong, strategic partnerships.

“Lockheed Martin Energy has an excellent track record of providing comprehensive solutions across the energy industry, and our work with Peak Power Inc. is a great match to address complex energy needs across both Canada and the United States.”

The Vermont-based nonprofit said its report, Jump-Start: How Activists and Foundations Can Champion Battery Storage to Recharge the Clean Energy Transition, should prompt action and support to advance battery storage, either deployed alone or paired with renewables.

The publication surveys 10 areas where batteries are transforming the energy system, from reducing demand charges to replacing peaker plants.

It also proposes 50 actions nongovernmental organizations (NGOs) can promote to accelerate rates of battery storage adoption, including investigating new behind-the-meter market opportunities, creating energy resilience plans and funding criticalsolar-plus-storage projects.

“This report is for activists and foundations who want to understand how battery storage can become a new part of their clean energy and climate advocacy,” states the publication. It notes the document is designed to explain the emerging economic, equity and environmental trends for battery storage use across all elements of the energy system.

The publication comes as NGOs increasingly move to embrace battery storage as a key ingredient for future low-carbon scenarios.

In the U.K., for example, the advocacy group Greenpeace lists “giant batteries” as one of four measures, including flexible gas plants, that can help wind power’s capacity to support the grid.

Friends of the Earth, another global environmental group, also cites batteries as part of the equation for an energy system based largely on renewables. Electric cars and batteries will “stockpile electricity for us,” says the group.

Beyond the rhetoric, a robust defense of battery storage has already helped advocacy groups win some battles against the fossil-fuel industry.

As reported in GTM, for example, NRG’s efforts to build the Puente gas plant in Oxnard, California were set back last year after a coalition of clean energy concerns, environmental justice advocates and the city itself touted energy storage as a cleaner alternative.

The California Independent System Operator studied the local grid needs and determined storage and other distributed assets could do the job of the gas plant.

Storing energy by suspending weights in disused mine shafts could be cheaper than batteries for balancing the grid, new research has found.

According to a report by analysts at Imperial College London and seen by BusinessGreen, gravity-fed energy storage systems can provide frequency response at a cost cheaper than most other storage solutions.

Gravity-fed systems use a heavy weight – up to 2,000 tonnes – suspended in a deep shaft by cables attached to winches. When there is excess electricity, for example on a windy day, the weight is winched to the top of the shaft ready to generate power.

This weight can then be released when required – in less than a second – and the winches become generators, producing either a large burst of electricity quickly, or releasing it more slowly depending on what is needed.

The Imperial analysis is based on a levelised cost of storage (LCOS), a calculation which takes into account all relevant performance factors including a project’s capex, operating costs, discount rate and degradation costs over a 25-year period.

According to the paper, gravity-fed storage providing frequency response costs $141 per kW, compared to $154 for a lithium-ion battery, $187 for lead acid batteries and $312 for flywheel.

The numbers assume the storage performs 700 cycles per year of 15 minutes each, at a power output of 4MW, to help manage the real time grid balance between system demand and total generation.

Singapore-based clean energy provider Sunseap Group has contracted German energy storage firm Hoppecke Asia Pacific to bring storage to Sunseap’s hybrid off-grid solar system at Tanglin Academy, the largest tennis academy in Singapore.

In 2016, Sunseap donated a 15kW solar system to the academy as part of its corporate social responsibility programme. Hoppecke’s 17kWh advanced sealed lead acid battery will help Tanglin Academy further reduce its carbon footprint. Solar energy produced during the day can be stored and discharged on cloudy days or in the evenings to illuminate the Academy’s tennis courts.

The collaboration will serve as a testbed for Sunseap to launch hybrid off-grid energy solutions on a commercial scale in the future.

The partnership will not only help Tanglin Academy utilise more clean energy but also reduce its reliance on its diesel generator, which is currently used to supplement the solar energy generated from the solar panels on its premises.

Sherman Chong, director of Hoppecke, said: “The hybrid energy system by Sunseap is an innovative solution that makes use of solar energy efficiently, while reducing carbon dioxide emissions. Our Hoppecke solar power battery range is an ideal complement to this system, and offers outstanding stability and long life span, even when the battery is partially charged.”

Shawn Tan, senior manager of special projects at Sunseap Group, said: “Sunseap is pleased to collaborate with Hoppecke and Tanglin Academy to showcase our new energy storage and solar-diesel hybrid energy solution. We have been exploring ways to help clients save more money and reduce their carbon footprint, and we are very excited that we have implemented this solution.”

Sunseap also works with enterprise development agency, Enterprise Singapore (previously IE Singapore and SPRING Singapore), to build its product development capabilities in micro grids and on test bedding projects.

OVO has unveiled a suite of new products designed to boost energy flexibility in the home, including what it claims to be the world’s first widely available domestic vehicle-to-grid (V2G) electric vehicle charger.

The 6kW V2G charger allows EV owners to charge up their vehicle at home, while simultaneously storing excess household power in the EV battery for use during high grid demand.

Supporters of V2G systems argue they will play a key role in boosting grid flexibility, allowing the UK to cope with the growing use of intermittent renewables and higher electricity demand from EV use.

Ovo says the charger will also help drive down household bills, allowing billpayers to store energy when it is cheap.

The charger is bolstered by a number of other products launched by the utility, including a domestic battery storage product and smart-enabled ‘Heat Dynamos’ which work alongside home electric heaters to boost the efficiency of their use.

Meanwhile, a new AI platform dubbed ‘VCharge’ will act as an overarching system for Ovo to flexibly manage smart household electricity systems. The VCharge system is designed to remotely connect smart electrical devices – such as EV chargers and battery storage – and aggregate them into a “virtual power plant” to better optimise their use and improve energy efficiency, according to OVO.

“We’re enabling thousands of EV batteries to help balance the grid in times of peak demand, more renewable energy to come onto the system, and households to reduce their electricity bills,” Stephen Fitzpatrick, CEO and founder of OVO, explained. “This is the first step in building the distributed energy system of the future. One that is truly customer centric and built around households and their connected energy storage devices.”

The energy technology firm has also launched a 7kW smart EV charger enabling EV owners to charge up during peak hours, but which unlike the V2G version does not offer two-way electricity flow capability to store power on the EV battery.

Today, MGX Minerals Inc. announced a partnership agreement between its 100% owned subsidiary ZincNyx Energy Solutions Inc. and New York based systems integrator Digital Energy Corp. According to the agreement, Digital Energy will install the ZincNyx battery system at a demonstration site in New York City and upon successful completion of the first project, ZincNyx and Digital Energywill develop additional installation sites and work to expand distribution of the ZincNyx technology in the US, as President and CEO of ZincNyx, Suresh Singh, explained:

“We are delighted with this partnership with Digital Energy. Digital’s years of experience with system integration and energy generation will greatly enhance our ability to deploy energy storage solutions throughout the United States.”

The first project in New York City will demonstrate ZincNyx’s patented zinc-air flow-battery technology in combination with an onsite co-generation plant to reduce cost and increase revenue through multiple value streams, including peak shaving, demand response and economic dispatch. The ZincNyx flow battery chosen for this project employs a unique zinc-air chemistry that is safe for use in densely populated areas. The project will identify the operational and regulatory requirements to be satisfied for deployment in the state of New York.

Digital’s choice, amongst many high capacity batteries, is the zinc-air system that has long been recognized as highly advantageous due to its inherent safety, high energy density and abundance of its raw materials. The other unique advantages of the ZincNyx system, such as the ability to simultaneously charge and discharge, flexibility to optimize power and energy needs, low cost of energy for long durations and modularity, further simplified the decision. Vice President of Digital Energy, Jon Lilian, commented:

“Digital is excited to partner with ZincNyx to bring lower cost energy storage solutions to New York State. We believe the ZincNyx flow battery product, along with revenue streams from the New York State REV initiative and the NYISO, will provide a high value proposition for this and future projects.”
Read more at http://www.stockhouse.com/news/newswire/2018/04/18/first-zincnyx-mass-energy-storage-plant-for-new-york-city#UeAADqqr9azrv10E.99

The Edison Electric Institute (EEI) and 32 energy companies and organizations sent a letter to leaders of the Energy Storage Association (ESA) on Wednesday to support its efforts in advancing energy storage and to highlight principles seen as critical to helping the nation achieve a cleaner, more reliable and affordable energy system.