Energy Storage

Only large scale and intelligent energy storage can solve the issue of variable renewable electricity generation. There is little political will for a fresh wave of subsidies for storage – as there was for renewables – hence a carefully crafted market design is needed to incentivises flexibility and storage, says Patrick Clerens, Secretary General at the European Association for Storage of Energy (EASE).

Finland’s technology group Wärtsilä has launched an integrated solar PV and energy storage to deliver a true “renewables as baseload” solution that increases resilience and efficiencies. The adaptable Wärtsilä Hybrid Solar can be supported by a power producer’s existing grid infrastructure.

June 14 – Enel Group’s first utility-scale, stand-alone battery energy storage - the 25 MW/12.5 MWh Tynemouth project - is about to start operations, supported by a four-year contract with British System Operator National Grid to provide grid-balancing services. Enel bought the storage venture from Element Power in May 2017, and invested about 20 million Euros in the overall project, including construction.

UK Power Reserve has partnered with Fluence to deliver the first phase of its 120 MW battery storage portfolio to the British power grid. Fluence agreed to provide three 20 MW storage systems at sites in the Midlands and North West using its Advancion technology. All three new sites are due operational during winter 2018/19.

The Swiss arm of MAN Diesel & Turbo and ABB Switzerland have started to jointly develop, produce and commercialize a three-way Electro-Thermal Energy Storage system (ETES). Based on so-called ‘charging cycle,’ the ETES uses surplus renewable-electricity to generate heat and cold for storage in insulated reservoirs. The stored heat and cold can then be converted back into electrical energy on demand.

Deployment of large-scale battery storage is rapidly increasing across the United States, but capital costs of energy storage systems vary greatly, dependent on the technology uses. Energy-oriented batteries systems, used for peakload shaving, are designed for longer durations and consequently have higher average costs per kilowatt and lower costs per kilowatthour. This type is mostly used in the California Independent System Operator (CAISO) area.

Technology of battery-based energy storage has matured and industry stakeholders in some regions of the United States have gained experience financing, procuring, and operating power storage installations. Lithium-ion chemistries batteries currently make up 80% of large-scale U.S. power storage, and most of the capacity is being installed in California followed by the Pennsylvania-New Jersey-Maryland Interconnection (PJM).

Mexico, the largest buyer of US pipeline gas and LNG, is preparing a tender for strategic storage at depleted oil and gas reservoirs. Cenagas, the Mexican National Natural Gas Control Centre, has already selected four underground sites – Acuyo, Brasil, Jaf and Saramako – from a list of 15 proposed sites. Registering strong bidding interest from foreign players, the Mexican Energy Secretariat (Sener) will hold the tender in September 2018.

Opinions differ widely when it comes to energy storage. Dominion Energy in its new long-term plan for Virginia and North Carolina notes that the price of battery storage showed it wasn’t ready for full consideration. Instead, the utility is looking to intensify the deployment of new gas-fired peaking power plants.

Dry natural gas production in the United States is forecast to reach a new record of 80.5 billion cubic feet per day (Bcf/d) in 2018, up from 73.6 Bcf/d in the previous year. According to the EIA’s latest Short-term Energy Outlook (STEO), the rise in US natural gas production will help replenish storage levels from current lows and support increasing natural gas exports, both via pipeline to Mexico and in the form of LNG.

Technological challenges are “taking root on the grid,” the New York Independent System Operator (NYISO) said with reference to an array of battery storage projects and the first offshore wind project off Long Island. Looking ahead, NYISO expects both baseload and peakload power demand to fall by about 0.14% through to 2028, caused by a rising use of distributed power sources and  energy efficiency measures.

Elon Musk, the man at the helm of Tesla, has hinted at the company’s Q1 investors’ call that a giant 1 GWh energy storage project would be announced soon. Highlighting the impact of Tesla’s 129 MWh battery in South Australia, he said “its grid stabilization was much greater actually than even a gas turbine plant, which normally respond quite fast.”

Siemens is applying its electrification experience in the marine industry to offshore oil and gas, focussing on reducing emissions and risk in harsh operational environments. BlueVault, Siemens’ advanced lithium-ion battery-based solution, is suited for both all-electric and hybrid energy-storage applications.

ITM Power and Northern Gas Networks (NGN) have announced the outcome of a feasibility study, evaluating the potential of deployment and cost-effective operation of 50MW energy storage capacity within the boundaries of the NGN gas distribution network. Low Thornley in Gateshead is being recommended as the most suitable site for a power-to-gas demonstration plant in the size range 50-100MW.

April 17 – Enel X, the energy services division of Enel Group through its US subsidiary EnerNOC, has struck an agreement with Algoma Orchards of Ontario, Canada to deploy a 1 MWh lithium-ion battery storage system under a contract spanning 11 years. The storage system will be deployed in the first half of 2018.

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News in Brief

San Miguel Energy claims $6.19bn subsidy for Ilijan plant

May 24 – South Premier Power Corp. (SPPC), San Miguel Energy’s development vehicle for the 1,200-MW Ilijan gas power project, has claimed that it already paid $6.19 billion in subsidies to state-run Power Sector Assets and Liabilities Management Corp (PSALM) for its financial obligations as independent administrator. The build-operate-transfer (BOT) contract for the Ilijan plant will expire in 2022; and by that time, SPPC will get ownership of the plant.

Evolve approved as energy storage for VPPs

May 23 – Eguana Technologies’ new Evolve system has been officially approved as an energy storage system for Simply Energy’s Simply Extra VPP (virtual power plant) offer in South Australia. Customers who purchase an Evolve system can sign up for the Simply Extra VPP offer and receive up to $5,100 in VPP Access Credits. These credits will be calculated on a daily basis at $3.49 per day to a maximum of A$5,100, credited over a five year period.

EIA launches State Energy Portal

May 22 – The U.S. Energy Information Administration (EIA) has released a new State Energy Portal, providing interactive energy data and customizable views of more than 150 charts, tables, and maps. The new portal gives users access to more than 1,700 state- and regional-level data series from more than 50 data sources.

GE repowers Azito plant in Ivory Coast

May 21 – Azito Energy has contracted GE to deploy its Predix software for two GT13E2 gas turbines and two generators at the Azito III plant site in Ivory Coast. The MXL2 upgrade for the two gas turbines is expected to boost the power plants overall output by 15 MW per turbine which, according to GE, is equivalent power for up to 120,000 homes

ERCOT at risk of brownouts this summer

May 20 – Texans is at risk of power emergency alerts this summer, and even rotating blackouts, as the current electric reserve margin of about 8.6% may prove insufficient to meet strong electric demand growth, the Electric Reliability Council of Texas (ERCOT) warned. Power grid operators typically aim for reserve margins of 10% to 15%.

ABB microgrid makes Indian villages energy self-reliant

May 17 – ABB’s MGS100 microgrid is helping some 39,000 homes and shops in remote regions in India to become energy independent, relying solely on renewable power sources and energy storage. Together with Husk Power Systems, ABB developed the MGS100 microgrid using wind and solar power to reduce household energy costs by up to 40% and improve productivity in 85% of factories and small businesses.

J-ENG develops new biofuel engine

May 16 – Japan Engine Corp. (J-ENG) has started to cooperate with Nippon Yusen Kaisha (NYK Line) to research and development a test engine running on biofuel. The new engine is designed for use in the maritime sector and is likely to be re-calibrated at a later stage for use in small-scale power generation applications.

‘Smarter E-Europe’ conference opens doors in Munich

May 15 – Today, the 2019 “Smarter E-Europe” conference and trade show is opening its doors to visitors in Munich. At the exhibition, Siemens is presenting decentralized energy solutions based on renewables and intelligent energy management systems for buildings, infrastructure and industry. Expert presentations on transforming the energy system, renewable integration and storage technologies can be seen at Siemens’ exhibit at Booth 110 in Hall B2.

Marubeni buys stake in U.S. distributed energy firm

May 14 – Japan's Marubeni Corp. has invested an undisclosed sum to buy an equity stake in GridMarket, a U.S.-based provider of development services to distributed energy resources (DER). Using proprietary analytics and machine learning, GridMarket’s distributed energy project platform helps utilities by recommending best-fit solutions like battery storage, solar PV, fuel cells and combined heat and power. By cooperating with GridMarket, Marubeni expects to identify cost-effective projects and source best-fit technologies for its own DER network in North America and Japan.

Global RES additions stall after 20-year growth

May 13 – The International Energy Agency (IEA) has reported an “unexpected flattening of growth trends” in the deployment of renewable energy sources (RES) deployment that raises concerns about meeting long-term climate goals. After two decades of strong annual growth, renewable energy developers around the world added as much net capacity in 2018 as they did in 2017.

RWE cancels €1.5bn coal power project

May 10 – The German utility RWE has decided to no longer invest in any coal-fired power projects and has cancelled a planned €1.5 billion ($1.68bn) lignite-fired power plant in Niederaussem, Germany. Instead, the utility is accelerating its transformation to renewables, energy storage and gas-fired generation through an asset swap with Europe’s largest utility, E.ON.

China’s CPECC to process gas from Iraq’s Halfaya oilfield

May 9 – Iraq and China Petroleum Engineering & Construction Corporation (CPECC) have signed a $1.07 billion deal to build and operate facilities to process natural gas extracted alongside crude oil at Iraq’s giant Halfaya oilfield. CPECC, an affiliate of China National Petroleum Corporation (CNPC), will process around 300 million standard cubic feet per day (mcf/d) of natural gas extracted from the field alongside crude oil, the oil ministry said.  Halfaya, operated by PetroChina, is Maysan Oil Company’s largest oilfield, producing 370,000 barrels per day (bpd) of the company’s total output of around 510,000 bpd.
Iraq continues to flare some of  gas extracted alongside crude oil but the Iraqi oil minister Thamer Ghadhban told Reuters Iraq is in talks with international oil companies to build a 300 mcf plant to process gas from the West Qurna 2 and Majnoon oilfields.

Chiyoda to get large cash injection

May 8 - Following losses of nearly $1 bill on an liquefied natural gas (LNG) plant project in Louisiana, Japanese construction company Chiyoda is to get a $1.4 bill cash injection. The company suffered a $953 mill loss in the six months to 30th September, 2018 after costs spiralled on the $10 bill Hackberry LNG plant in Louisiana, largely, due to escalating labour costs, it was claimed. Chiyoda was expected to record a net loss of about $1.4 bill for the fiscal year to March. Mitsubishi Corp, which owns a 33.4% stake in Chiyoda, and the Mitsubishi UFJ Financial Group, have agreed to provide capital while the company implements a rescue strategy, according to the Nikkei Asian Review.

Siemens, TÜV SÜD partner on digital energy security

May 7 – Siemens and the German technical verification association TÜV SÜD have come together to address the growing risk of cyberattacks on critical infrastructure, notably in the energy sector. The companies will digitally asses industrial control systems in both the oil and gas and power generation sectors (nuclear applications excluded). All tests will be vendor-agnostic.

UK ‘can cut emissions to net-zero’ by 2025

May 6 – Advisors to the British government have urged the Cabinet to “set and vigorously pursue” a new target to cut greenhouse gas emissions to ‘net-zero’ levels by 2050, replacing the current target of an 80% reduction against 1990 levels. The the Committee on Climate Change, which published the report, believes the new target could be achieved within the same cost-framework as the current more lenient goals.

Iraq’s gas imports from Iran bound to rise in June

May 2 – Iraq has no alternative to importing more Iranian gas to meet peak summer demand, the country’s electricity ministry said. He specified that halting imports would cost Iraq’s power grid 4,000 MW per day. Some 14 GW of Iraq’s installed capacity is run on domestic gas, and supplies from Iran keep an additional 4GW operational. “Until now, we have no alternatives to Iranian gas,” a spokesman of the energy ministry said, adding imports from Iran are expected to increase in June from currently 28 million cubic metres per day to 35 MMcm/d.

Waukesha gas engines delivered to CHP in East Germany

May 1 – INNIO’s authorized partner, S&L Energie-Projekte, has provided four packages of INNIO’s Waukesha VHP 9394GSI gas engines for a CHP, operated by the municipal utility of Lutherstadt Wittenberg in eastern Germany. The modernized district heating plant is claimed to achieve an overall efficiency above 95%.