Energy Storage

Variation in US electricity demand is creating a need for at least 258 gigawatthours (GWh) in storage capacity, according to the latest figures from the US Energy Information Authority (EIA). Availability of greater storage capacity would help decouple power supply from fluctuating demand.

Underground gas storage has emerged as a "supporting tool to gas trading". It is vital to cover variability in gas demand when peaking gas-fired generation is used to balance intermittent renewable power supply, Cedigaz finds.

 

SoCalGas, a gas grid operator in California, is spending £1 million on the cleantech fund LA Cleantech Incubator (LACI) to develop 'renewable natural gas.' "Biogas is one source but, in the future, we expect other pathways such as 'water splitting' through solar chemical conversion and hydrogen electrolysis to provide renewable natural gas," said Jeff Reed, SoCalGas director of business strategy and development.

Italian marine classification society RINA has approved a design for a compressed natural gas (CNG) storage system aboard vessles, which is being used as gas feed at a fuel oil peaking power plant retrofitted to run on gas in Grati, Indonesia. The 300MW unit is "the world's largest CNG storage system," according to RINA.

July 30 - Samsung Electronics Co and S&C Electric Co have joined forces to develop an energy storage project that could save Britain up to £300 million annually once 2 GW of storage is installed by 2020.

The project comes at a cost of £28.5 million and will be capable of storing up to 10 MW-hours of electricity.

As part of a 'smart grid' feasibility study, energy storage company ITM Power has launched an upgrade to its hydrogen-producing HGas electrolyser on the Isle of Wight, UK to allow more solar and wind power to come on the grid safely. Sponsored by the UK government, the study examines how HGas electrolyser units produce hydrogen gas from surplus renewable power that utilities can sell as fuel to natural gas consumers and power plants.

In an effort to curb energy bills, Japan's Ministry of Economy, Trade and Industry is using Kitakyushu City as a test bed for a hydrogen storage system integrated with controller software, solar panels and industrial CHP (Combined Heat and Power) backup. The City of Yokohama, Toyota City, and Keihanna are also part of the Japan Smart City Portal experiment, which began in 2010 and ends in 2014.

Electricity storage technologies, operating on hourly or daily timescales, tend to be deployed to take advantage of variations in the price of electricity. Researchers at the US Energy Information Administration point out that energy storage increases security of power supply as it flattens the daily load shape and integrating variable generation like wind.

May 28 - Pacific Gas and Electric Company (PG&E) and the California Energy Commission have launched a battery energy storage system pilot project in east San Jose to better balance power needs of the electric grid.

The project launch was made possible following a $3.3 million grant from the Energy Commission to PG&E that will help fund the installation and evaluation of the system.

Jan 25 - Duke Energy Renewables, part of Duke Energy's Commercial Businesses announced the completion of North America's largest battery storage project at its Notrees Windpower Project in west Texas.

The 36 MW energy storage and power management system completed testing and commenced operations in December.

Sept 21 - Going into the winter withdrawal season, gas storage volumes in the UK are on healthy levels on soft European demand for UK gas through the Interconnector, Deutsche Bank analysts said today.

Month-to-date Interconnector flows have averaged 9mcm/d this year versus 52mcm/d last year in early September (excluding the maintenance period), the bank said in a weekly commodity report.

Volumes in the UK are nearly equal to that seen last year, even with the large withdrawal in September, compared with a net injection last September into medium-range storage.

Sept 12 - Installed thermal energy storage capacity in the U.S. is forecast to rise to 7.2 GW by 2020, up from 2.7 GW in 2011, according to Pike Research.

The annual U.S. market for incremental thermal energy storage capacity totals $268 million, with 246 MW of new capacity installed in 2011, Pike Research, a part of Navigant's Energy Practice, said in a report published on Wednesday.

The strongest growth for thermal energy storage is expected to occur in Europe, as market development is supported by the European Commission's efficiency initiatives and the rise in volatile renewable electricity generation.

„Under a conservative estimate of 2020 market activity, there will be about 19 GW of cumulative thermal energy storage installations in Europe by the end of the decade, equaling 2 GW of new capacity per year by 2020," analysts at Pike Research said in the report.

Thermal energy storage is used to better utilise surplus electricity generatated at solar plant projects by storing heat for later power generation.

August 28 – ABB has been commissioned to launch the largest battery energy storage project of its kind in Switzerland together with EKZ, a power distribution utility.

ABB supplied EKZ with battery energy storage solution using Lithium-ion (Li-ion) batteries that can provide one megawatt of power during 15 minutes.

The storage facility is integrated into EKZ's power distribution network and is being used to evaluate
performance in key areas such as balancing peak loads and intermittent power supply, and the viability of the solution for grid optimization.

August 17 - Germany's municipal utility Stadtwerke Neustadt solar power developer IBC Solar have inaugurated a pilot project to store up to 200 kWh of electricity within a local grid area.

If the utility's solar plants produce more power than is required, the energy can be stored and supplied to the grid at a later point, online media solarserver.de reported on Friday.

The power storage unit helps to stabilises the local grid and reduced the need for further regional grid expansion.

Decentralised energy storage can play an important role within the context of tomorrow's smart grid, next to demand response by means of flexible power generation, an Eurelectric report finds.

Page 10 of 11

News in Brief

Japan starts electricity futures trading

Sept 19 – Tokyo Commodity Exchange (TOCOM) has launched trading in electricity futures to advance price competition in Japan’s liberalized energy market. The East Area peakload electricity contract for October delivery first traded at 10.9 Yen per kWh, lower than the standard price of 11 Yen set by TOCOM in advance.

Duke to reduce rates in 2020

Sept 18 – Duke Energy Florida (DEF) customers will see lower bills in 2020. The utility filed a proposal with the Florida Public Service Commission to reduce rates for electricity and gas by more than 3% while adding more solar power and making grid improvements.

Myanmar approves three power projects

Sept 17 – Myanmar’s Ministry of Electricity and Energy has given the green light to plans for a 1,230 MW gas-fired power plant in Kanpauk, Taninthayi region, a 377 MW gas-fired unit in Ahlon, Yangon region and a 1,390 MW thermal plant in Milaunggyine in Ayeyawady region. The conflict-ridden country is currently producing electricity from 5,600 MW installed capacity, derived both from state- private-owned power stations.

Bonny Train-7 to cost $6.5bn

Sept 16 – Nigeria LNG is preparing to add a seventh processing train to Bonny LNG, bringing total capacity from 22 million tons per annum (mtpa) to 30 mtpa. Estimated to cost $6.5 billion, Bonny Train-6 will include a new liquefaction unit, a storage and a condensate tank as well as three gas turbine generators.

Schneider to complete L&T takeover by early 2020

Sept 13 – Venturing into India, Schneider Electric hopes to finalise the Rs 14,000 crore acquisition of Larsen & Toubro's electrical and automation business by early 2020. After the transaction is completed, Schneider will have a 65% stake in L&T, while the remainder will be held by Temasek.

MHI to advice China on energy conservation

Sept 12 – Mitsubishi Heavy Industries Thermal Systems, part of MHI, has set up a joint venture withan affiliate of State Grid Corporation of China (SGCC) to perform technical consulting for energy conservation projects in China. The focus of SGCC lies on building new decentralized power stations, biomass-derived power gensets and energy saving solutions.

Tender extended

Sept 11 – Turkmengas has extended a tender for the overhaul of the gas turbine engines of the NK-12ST and NK-14ST brands. Bidders need to pay to receive the tender documents, and then submit a written application to Turkmenistan’s state gas company.

Gas power units to buffer Germany’s coal exit

Sept 10 – Electricity output of Germany’s fleet of gas-fired power plants has risen to a over 13,5 billion kilowatt-hours in the three months from June to August, Fraunhofer ISE figures show. These productivity gains put CCGTs in pole position to balance supply swings in connection with the German coal exit.

Power of Siberia gas flows to start on Dec 1

Sept 9 – Russian gas supplies to China via the eastern route are going to start on December 1, 2019, Gazprom chairman Alexey Miller told his counterpart at CNPC in Beijing. The huge Chayandinskoye field, containing some 1.2 trillion cbm of gas, had already been connected to the 38 Bcm per year ‘Power of Siberia’ gas pipeline in August.

Hurricane Dorian causes havoc in the Bahamas

Sept 6 – In the aftermath of Hurricane Doran, a Category 5 storm, Bahamas Power and Light has said there is a total blackout in New Providence, the most populous island of the archipelago. Dorian made landfall twice on Sunday, ripping off roofs and electricity lines. In most parts, electricity has not been restored.

LNG cargoes via Bab-el Mandeb decrease

Aug 30 – Northbound LNG shipments via Bab el-Mandeb, a sea route chokepoint between the Horn of Africa and the Middle East, have fallen over the past three years as Egypt imports less natural gas from the Persian Gulf. In 2015 and 2016, both Jordan and Egypt imported up to 1.4 Bcf/d of LNG into Red Sea ports but these shipments fell sharply following the development of large gas finds in the Mediterranean.

Hokuriku Electric buys LNG cargo

Aug 29 – Japanese utility Hokuriku Electric has purchased an LNG cargo for delivery in November as soaring temperatures drew down gas in storage for the autumn. The cargo is understood to be scheduled for delivery in the second half of November from Malaysia’s Petronas and may well be destined for Hokuriku Electric’s first LNG-fired power generation unit,  the Toyama Shinko plant.

Technip spins off LNG activities

Aug 28 – TechnipFMC, has decided to spin off its European-based engineering and construction operations into a separate business, leaving the American half of the firm as an equipment supplier to the oil and gas sector. The split is due to be completed in the first half of 2020.

FLNG power market to top $930m by 2023

Aug 27 – The global market for floating LNG power vessel is projected to reach $ 931.6 million by 2023, up from $ 860.1 million seen last year, according to ReportsnReports. Major vendors of FLNG power vessels are Siemens, MAN, Wärtsilä, Caterpilar and GE which are targeting to use the technology to supply decentralized power to island nations in Southeast Asia and along the coast of sub-Saharan Africa and the Americas.

EIA monitors grid hourly

Aug 26 – The U.S. Energy Information Administration (EIA) has launched a beta release of its hourly electric grid monitor. The enhanced version analyses hourly generation by energy source and hourly sub-regional demand for certain balancing authorities in the Lower 48 states.

Hiroshima waste-to-energy plant gets upgrade

Aug 23 – Mitsubishi Heavy Industries (MHI) has been chosen to upgrade and refurbish the combustion facilities at a waste to energy plant in Hiroshima. The Naka plant in Minamiyoshijima, Naka-ku, has a total waste treatment capacity of 600 tonnes per day and generates 15.2 MW of electricity to power the equipment in the factory, while selling the remainder to the grid.

China eases ban on coal power

Aug 22 – The Chinese National Energy Administration (NEA) has allowed 11 provinces to resume building coal power plants in a move that lies bare the country’s dependency on thermal coal even after several hundred billion dollars were invested cleaner energy sources, notable wind, solar and natural gas. Areas earmarked by NEA for new coal power plants include Qinghai, Chongqing, Guangxi, Guangdong, Yunnan, Guizhou and Henan.