Energy Storage

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.

GE Reservoir, a new power storage platform for AC or DC coupled systems, condenses 4MWh of energy capacity into a 20’ box. The system improves battery the lifecycle by about 15%, delivers 5% higher efficiency and reduces installation time and costs, GE said, adding it already has a 20 MW, 80 MWh pre-launch commitment.

About two-thirds of the utility-scale battery storage capacity installed in the United States is located in two electricity markets: the California Independent System Operator (CAISO) and the PJM Interconnection which covers all or parts of 13 eastern states.

Greensmith Energy, a part of Wärtsilä group, has completed two grid-scale energy storage systems in Texas. Called ‘Texas Waves’, the two 9.9-MW short-duration storage facilities are fed by E.ON’s 249-MW Pyron and the 197-MW Inadale wind farms, both near Roscoe, delivering energy on short notice to the Electric Reliability Council of Texas (ERCOT).

Arenko Group, a leading energy storage systems operator, has selected GE to deliver a 41-MW battery – one of the largest in the UK – to supply power on demand to approximately 100,000 homes. The grid-scale energy storage is designed to enhance efficiency of power transmission, balance renewable energy supply and help reduce customers’ energy bills. To be sited at a strategic location in the Midlands, the battery storage will commence operations in 2018.

Page 6 of 13

News in Brief

Zhonghua’s profits halve

April 1 – Hong Kong-listed Zhonghua Gas Holdings has recorded a staggering 46.7% fall in profit, citing a lower margin for LNG supplies and reduced subsidies, although full-year revenue rose by 7.3%. In December, Zhonghua partnered with Shanghai Shenergy to supply LNG in the Yangtze River Delta region, and also has strong business relationships with Tractebel Engineering and Tianjin Jinre Heat-Supply Group.

Endesa donates $28m to fight coronavirus

March 31 – Endesa has created a 25 million euros ($27.8 million) fund to help fight the coronavirus pandemic in Spain. The Spanish utility, subsidiary of Enel, said the fund will be designated for purchases of protective equipment for health-care workers.

 

MAN develops liquid methane terminal in Swedish port

March 30 – OxGas has commissioned MAN Energy Solutions to act as ‘owners engineer’ to develop and build a liquefied methane-based fuels terminal in the Swedish Port of Oxelösund. The terminal will feed both LNG and green methane derived from bio gas to SSAB ’s local steel production, and to re-distribute it via train and trailers to other parts of Sweden for use in the steel industry and decentralized power generation.

American ISOs to delay grid investments

March 27 – North America’s independent system operators (ISO) are considering delaying investments in grid upgrades and enhancement as electricity demand weakens due to industry shutdowns to contain the coronavirus pandemic. PJM Interconnection, the largest U.S. bulk power market which spans 13 Mid-Atlantic and Midwestern states, revised its daily forecast of about 100,000 MW of load but actual demand came in at 95,500 MW.

Wärtsilä starts combustion trials using ammonia

March 26 – The Finish technology group Wärtsilä has initiated combustion trials using ammonia in an effort to reduce emissions. Based on initial results, the tests will be continued on both dual-fuel and spark-ignited gas engines, followed by field tests in collaboration with ship owners from 2022, and potentially also with energy customers.

Xodus sees growth in cable services

March 25 – Xodus Group has stepped up services related to subsea power cables over the last twelve months. The number of new consulting assignments grew by more than 50%, resulting in more than 70 active work streams that are handled by more 30 permanent staff.

Electricity “more indispensible than ever”

March 24 – Disruptions caused by the coronavirus crisis lay bare how much modern societies rely on electricity, according to the International Energy Agency (IAE). Millions of people are mandated to stay home, causing a surge in teleworking, e-commerce and video streaming which pushes up domestic electricity use.

U.S. frackers cut Capex

March 23 – Sharp cuts in capital spending among Appalachian gas producers are now being replicated in other U.S. basis, with Energy Aspects anticipating the deepest impact on production and earnings to take place starting from the second half of 2020. So far, E&P companies just hedged 52% of this year’s expected production even though some Appalachian producers are seen “lock in some pure gas volumes at prices above the curve.”

EV makers face bankrupcy

March 20 – Electric vehicles (EVs) remain particularly exposed to the corona effect of supply-side constraints and demand erosion. Gigafactory facilities are likely to be delayed and fledging EV manufacturers could face bankruptcy, Wood Mackenzie warns. On the flip side, declines in EV sector demand may be gains for the stationary energy storage segment.

Manufacturing rebounds in Asia

March 19 – Asian-dominant supply chains for solar and energy storage are gradually rebounding after contractions in February. Moving forward, Wood Mackenzie expects near-term development activity and local logistics in leading European and North American markets will outweigh lingering supply issues.

Italy’s gas demand plunges

March 18 – Corona-struck Italy has seen demand for natural gas plunge 8% from the previous week, with similar declines likely in other EU countries as national governments impose lockdowns to contain the virus. Industrial demand is “particularly volatile,” while gas generators will bear the brunt of demand loss, Wood Mackenzie says, as a carbon price decline is bolstering thermal coal.

Nexif raises funds for Rayong CHP

March 17 – Nexif Energy, a joint venture between Singapore-based Nexif and Denham Capital, has raised project financing for the Rayong gas-fired cogeneration project in Thailand. The 92 MW plant is being developed project with Ratch Group, based on 25-year power purchase agreement with Electricity Generating Authority of Thailand (EGAT).

ADB provides $10m loan for Afghan IPP

March 16 – The Asian Development Bank (ADB) has agreed to provide $10 million in debt financing for a gas-fired power unit in Mazari Sharif with a capacity of nearly 60 MW. Phase-1 of the Independent Power Project (IPP) will get another $10 million loan from the Leading Asia's Private Sector Infrastructure Fund (LEAP).

IEA models 50% Carbon-Free Generation

March 13 – Analysts at the U.S. Energy Information Administration (EIA) have drawn up the 50% Carbon-Free Generation case - assuming a stark shift in state-level policies. In this event, the U.S. would have 19% more nuclear power generation, 10% more wind power and 17% more solar PV contribution than in its Annual Energy Outlook 2020 (AEO2020) reference case.

E-charging market to top $15bn by 2030

March 12 – By 2030, the U.S. market for energy-optimisation in support of charging electric-vehicles could be worth $15 billion per year, McKinsey finds. The consultancy expects high demand for home-charging appliances as residential power tariffs are comparatively cheap and most charging can happen overnight when off-peak electricity prices are lower.

Oversupply builds up

March 10 – Energy Aspects’ end-March forecast has added on another 100+ billion cubic feet of natural gas supply while demand remains subdued. In the U.S., the seasonal decline in heating degree days nearly halved the natural gas withdrawal rate. Gas-burn in the power sector and residential/commercial demand are forecast to fall by 1.7 billion cubic feet per day (bcf/d) and 4.0 bcf/d, respectively.

Small-scale LNG cuts cost for power plants

March 10 – Decentralized gas power plants in remote locations can source cheaper fuel from small-scale LNG regas terminals than from trucking the super-chilled gas across long distances. “Trucking LNG further inland would entail additional costs as well as logistical challenges,” IEA analysts noted. For example, a 100 MW baseload power plant would require, on average, around 20 daily deliveries from tanker trucks.