TORONTO, ONTARIO–(Marketwired – Oct. 25, 2017) – Sparton Resources Inc. (TSX VENTURE:SRI) (“Sparton” or the “Company“) is pleased to report that that the Chinese Central Government has recognized battery technology as the key technology in the transition from fossil fuels to renewable energy.

On September 22, 2017 the China National Development and Reform Commission (“NDRC”) and the National Energy Commission (“NEC”), jointly released Document 1701, “Guidance on the Promotion of Energy Storage Technology and Industry Development”.

In this comprehensive and far reaching document, various private, State and Federal institutions, and energy generating utilities in China, are encouraged to support, further develop, and make expanded use of various forms of evolving energy storage technologies. The NDRC and NEC, in conjunction with the Ministry of Finance and the Ministry of Science and Technology, Ministry of Industry and Information Technology, and other relevant departments, have been mandated to coordinate, establish and improve measures to effectively promote energy storage initiatives.

China is the world leader in renewable energy power generation. The need for supporting energy storage programs, using various technologies, has been long recognized as part of China’s long-term planning. Document 1701 affirms that the storage industry is of strategic significance for building a modern, clean, low carbon, safe and efficient energy industry.

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Battery storage is breaking into an ever longer list of grid-scale configurations, as new business cases arise.

Every major solar developer has begun at least contemplating storage paired with solar, even if few large projects have yet been built. GE has already paired batteries with its gas generators for fast-ramping grid services; it expects the setup to prolong the life of the gas asset.

Last week the roster of possibilities expanded when two companies announced new storage plant combinations: batteries with solar and wind power to provide consistent electricity in Australia, and a hydropower plant-plus-storage to tap the challenging PJM frequency regulation market.

The onus is on the developers to prove these newfangled plants can make money, but they’ve already expanded the range of uses for grid storage technology.

Wind and solar and storage, oh my!

Windlab and Vestas will develop a solar-plus-wind-plus-storage project in Queensland, Australia called the Kennedy Energy Park by the end of 2018. This will include 43.2 megawatts of wind capacity, 15 megawatts of solar and 2 megawatts of storage.

That’s the first system of its kind that’s been publicly announced, said Hong Durandal, a business analyst covering hybrid systems at MAKE.

A single control system will operate all three resources, to optimize energy production and availability. Vestas will provide a 15-year active output management service for the site.

“By pairing two different generating assets such as solar and wind with energy storage, the system is more reliable and flexible than individual standalone solutions,” Durandal said. “A wind-solar-battery system is more resilient against unforeseeable circumstances such as prolonged cloudy days with poor sunlight or days with low wind speeds.”

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Chris Pritchett is a contract lawyer working in Britain for law firm Foot Anstey, as a partner heading up the energy and environment practice. Pritchett recently served as moderator for the “Developers and financiers debate” at the Energy Storage Conference at the Solar & Storage Live 2017 show in England. In attendance were fund managers and project developers and a robust discussion followed. Afterwards, Andy Colthorpe caught up with Chris for an in-depth interview on camera.   

One main topic that comes up often is the relative complexity of modelling returns for energy storage projects, compared to the simplicity enjoyed by solar developers and financiers.

“[With the feed-in tariff (FiT), renewables obligation (RO) and PPAs]… you got used to a quite straightforward and really quite easily modellable return. You knew what it was going to be – it was government-backed for 20-25 years. There has been a journey whereby the investment community has had to detach themselves from that way of thinking.

“Some of the most sophisticated guys haven’t come from that background, they’ve come from tech investment. Actually, they’re far more used to the way this is working. There’s still a willingness to say, ‘what’s the aggregation agreement, or the FFR (fast frequency response) agreement? That’s the financeable proposition’.

“And you say ‘no, actually, here… is an asset – we’ve got grid, all the connections, we’ve got the battery modules and control system. And we’ve got a world of opportunity, where somebody, at some point, will pay you to do lots of stuff with it’.

“People who are well placed to take advantage of that market will be people with assets deployed and ready to go.”   

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The race is on for storage solutions that can help provide secure, reliable electricity supply as more renewables enter Australia’s electricity grid.

With the support of the Australian Renewable Energy Agency (ARENA), we have identified 22,000 potential pumped hydro energy storage (PHES) sites across all states and territories of Australia. PHES can readily be developed to balance the grid with any amount of solar and wind power, all the way up to 100%, as ageing coal-fired power stations close.

Solar photovoltaics (PV) and wind are now the leading two generation technologies in terms of new capacity installed worldwide each year, with coal in third spot (see below). PV and wind are likely to accelerate away from other generation technologies because of their lower cost, large economies of scale, low greenhouse emissions, and the vast availability of sunshine and wind.

Although PV and wind are variable energy resources, the approaches to support them to achieve a reliable 100% renewable electricity grid are straightforward:

• Energy storage in the form of pumped hydro energy storage (PHES) and batteries, coupled with demand management; and
• Strong interconnection of the electricity grid between states using high-voltage power lines spanning long distances (in the case of the National Electricity Market, from North Queensland to South Australia). This allows wind and PV generation to access a wide range of weather, climate and demand patterns, greatly reducing the amount of storage needed.

PHES accounts for 97% of energy storage worldwide because it is the cheapest form of large-scale energy storage, with an operational lifetime of 50 years or more. Most existing PHES systems require dams located in river valleys. However, off-river PHES has vast potential.

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After CEO Elon Musk extended an offer to help Puerto Rico earlier this month, Tesla is following through on a pledge to contribute to rebuilding the power grid devastated by Hurricane Maria, leaving thousands of people without electricity.

In a tweet Tuesday, Tesla posted photos of Hospital del Niño and the solar and power storage project that’s beginning there using the company’s Powerwall batteries. Musk has also donated $250,000 to relief efforts in Puerto Rico.

Musk first hinted at helping to rebuild Puerto Rico’s power grid in a tweet on October 5th; Governor Ricardo Rosselló promptly replied with, “Let’s talk.” Since then, numerous other companies have offered to help find power solutions for the territory that sustained upwards of $90 million in damage in late September from Hurricane Maria.

Last week, however, Whitefish Energy, a small firm from Interior Secretary Ryan Zinke’s Montana hometown, said it would be awarded the $300 million contract to fix Puerto Rico’s electricity problem.

Rosselló has said the goal is to get 95 percent of Puerto Rico’s power back online by Christmas.

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The Caribbean Development Bank (CDB) has approved funds of USD$350,000 for energy storage and grid modernisation in the Caribbean.

The grant was approved to assist utilities and stakeholders with design and planning of storage and grid solutions, in an effort towards clean energy across the region.

Tessa Williams-Robertson, head at Renewable Energy at CBD said, “Through this project, utilities and energy stakeholders will receive the support and technical advisory services needed to identify suitable investments in energy storage and grid modernisation technologies and properly plan for implementation and operational management”.

The Canadian Support to the Energy Sector in the Caribbean (CSES-S) fund will provide technical assistance supporting up to six energy storage and/or grid modernisation proposals, from the Bank’s Borrowing Member countries (BMCs).

The CSES-S Fund provides technical assistance over a four-year period; it was launched in 2016 and has since supported 15 technical assistance projects. The projects include 10 capacity-building projects, four development support projects and one regulatory support project, with the capacity-building projects reaching over 500 people.

The Canadian Government provided CAD$5 million (USD$3.9 million) in grant resources to the CDB to support public and private actors in the energy sector.

The Canadian government invests through the fund in legislative and regulatory Support, investment project support and capacity building, to supply energy projects and increase knowledge and expertise, in order to achieve sustainable energy targets.

In May 2017 CBD approved projects including: the Building Capacity for Disaster Risk Management and Climate Project in Haiti as well as an Energy Efficiency Measures and Solar Photovoltaic Plant undertaking in St Vincent and the Grenadines.

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A number of years ago, one of the smartest entrepreneurs in the electric industry (as evidenced by the timing of his sale of generating assets to a big energy producer) bought a hybrid car. He said it was a mobile electric battery and that he’d sell electricity back to the grid from it, sooner or later. That was a while ago. Now every major automotive manufacturer around the world is making a big commitment to electric vehicles (EVs). And yes they are basically mobile batteries. 

Renault, which has cross ownership arrangements with Nissan and Mitsubishi, just announced the creation of Renault Energy Services. This new corporate unit is dedicated to a broad array of challenges: the smart grid, charging systems and electric storage.

Because these are automotive companies, the electric vehicle as the center of the operation. But if we learned that an electric utility was exploring these three areas in some integrated way we would certainly not be surprised either.

Nissan officials in the United Kingdom (where incidentally there is little reserve electric generation capacity in the conventional network) claim to have an “intelligent charging strategy”. This facilitates recharging car batteries at off peak periods. The added benefit here is the potential for better utilization of renewable energy sources like wind power, which are often under-utilized during off peak periods.

If large numbers of vehicles eventually do recharge batteries during off peak hours, it implies several changes for the utility industry. First, all those extra vehicles drawing power off peak would boost asset utilization rates substantially–a pretty big positive. However, the same so called intelligent software that directs the battery to recharge during off peak hours, can also be programmed to resell power back to the utility when power prices are high, assuming the vehicle won’t be used.

In a sense, all of our driveways and streets could be lined with thousands of what amounts to very small power plants. All with the potential eventually to sell electricity back into the grid. Planning for future electric power generation needs just got a lot more complicated.

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Renewable energy is, undeniably, on the rise: solar and wind farms are popping up in the U.S., Europe, China, and Australia, while many companies are planning to source 100 percent of their energy from renewables. Side-by-side with this growing interest in clean energy are equally increasing energy storage needs. According to Spencer Hanes, a business development managing director at the North Carolina-based utility provider Duke Energy, batteries—like Tesla’s Powerwall and Powerpack—are going to take over the U.S. electric grid in five years.

“There’s going to be a lot of excitement around batteries in the next five years. And I would say that the country will get blanketed with projects,” Hanes said on Thursday, speaking as part of a panel at Solar Power Midwest in Chicago, according to Forbes.

Solar and wind farms generate energy at peak periods, when the sun is out and the winds are strong, but these don’t always match the needs of the grid. To remedy this, solar and wind farms, and even utilities, are turning to energy storage batteries. Tesla has a number of projects like this in Australia, while Google parent company Alphabet is working on a similar project in Malta.

CLEANER AND CHEAPER

Aside from batteries in larger energy farms, batteries are also becoming more popular domestically. Soon, more houses are going to be equipped with home batteries, like the Powerwall and Ikea’s home battery packs, as a reaction to the shift to renewables—and because they bring down energy costs. In the U.S., home developers in a number of state, which include New York and California, are making batteries part of their houses. “With the way that the cost curves are coming down it’s a big opportunity for all of us to deliver what customers want,” Hanes added.

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Almost every automaker working on electric cars is also currently looking at ways to leverage their battery technology development into other products. It started with Tesla’s launch of ‘Tesla Energy’ in 2015 and now BMW, Renault, Nissan, and several others have also launched similar products or even new energy divisions.

Daimler has its ‘Mercedes-Benz Energy’ subsidiary and the company unveils today an impressive new project using its vehicle battery packs for stationary energy storage.

The German automaker is putting aside 3,000 battery modules from its production for the third-generation smart electric car toward a new energy storage facility managed by enercity, a German electric utility, in Herrenhausen.

They have already installed 1,800 battery modules out of the total 3,000 and they announced today that they brought the system online.

It is being used to balance out the important amount of solar and wind energy on the German grid:

“In the event of increasing fluctuations in electricity feed-in from renewable energies such as wind and solar energy, such storage units help to ensure optimum balancing of the grid frequency, which must be constantly stabilised. With their storage capacity, they balance the energy fluctuations with virtually no losses – a task which is currently predominantly performed by fast-rotating turbines, rotating masses in large power stations. Around half of the planned system strands is already coupled with the network with an output of 5 MW.”

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As an increasingly high proportion of energy grids are fed by renewable energy, developing storage solutions that can deal with intermittency in sustainably, safely and cost-effectively is key.

Lithium-ion batteries are still the frontrunner technology for large-scale energy storage, and their benefits are clear — high energy densities, relatively low maintenance and a rapidly dropping cost per kWh. But their drawbacks of limited lifespans, explosive failure modes and potentially precarious chains of component supply are equally well publicized.

What battery technologies and chemistries are making waves for stationary storage applications?

All-Iron Flow Batteries (RFB)
Redox Flow Batteries (RFBs) are hardly a new technology, but have received renewed interest in the past few years as grid energy storage solutions. Benefits include long lifespans, theoretically limitless scalability and long discharge times, however, they have been held back by their drawbacks including low energy densities, expensive component costs and in some cases toxic or dangerous electrolyte materials.

Energy Storage Solutions (ESS) have been working on developing and proving the commercial case for their all-iron flow battery which aims to solve several of these issues. In contrast to Vanadium flow batteries, the electrolyte materials are selected for their abundance, safety and low-cost — salt, iron and water. The battery can be transported “dry” and hydrated on site, also lowering logistics costs and improving mobility.

The non-corrosive electrolyte also allows for cheaper materials to be used for the power stack and other battery components. With a mild electrolyte pH (1 to 4) electrode reaction potential lower than the 0.8V carbon corrosion potential, all-iron flow batteries experience little electrode degradation — ESS’s modules experience minimal performance loss over 20 000+ cycles with approximately 70% peak round trip efficiency.

ESS are testing the business case under a contract with the U.S Army Corps of Engineers, with initial cost estimates at have set an estimated cost for their battery at $500/kWh. At this relatively early stage of development, the cost is certainly not attractive enough to compete with Li-on or even Vanadium flow on a wide scale but could be an ideal solution for smaller and/or remote grids.

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