Han® S: Reliable connections for modular energy storage systems

New series features housings accommodating a heavy-current contact up to 200 A

HARTING is now offering the Han® S, the first ever large-scale special connector for battery storage modules. The new series meets the technical requirements set down in the latest standards for stationary energy storage systems (including UL 4128) and offers users optimal reliability for connected units. The series features housings with space for a heavy-current contact up to 200 A. 

The contacts are mounted in a housing, which is freely pivotable. The locking system engages intuitively. The use of red for plus and black for minus, combined with the mechanical coding system, means that the interfaces cannot be confused. Han® S thereby facilitates fast and reliable mating for energy storage modules and helps to process high numbers of connections. Alternatively, the new series can also be installed as part of a control line (BUS system) for the battery management system. It features special contacts in the housing to support this.

Han® S is the new, reliable connection technology for modular battery storage systems. The compact and flexible housings offer space for contacts up to 200 A.Han® S is the new, reliable connection technology for modular battery storage systems. The compact and flexible housings offer space for contacts up to 200 A.

Interfaces in modular energy storage systems are subject to special requirements. For instance, the wiring for lithium-ion batteries requires compact plug connections that do not heat their surroundings even when transmitting high currents. The connector housing must move as freely as possible to serve storage units effectively in terms of enhancing performance and efficient cooling.

The Han® S series combines straight attachment housings with angled ‘sleeves’ that have integrated pivotable protective elements for the contacts. This combination can be rotated 360°, a key feature given the very limited space between the door opening and energy storage modules in a storage cabinet. This results in flexible connectors with high current load capacity, enabling the integration of the maximum number of storage components in the available space.

Han® S as a connecting element in energy storage cabinets (Tesvolt).Han® S as a connecting element in energy storage cabinets (Tesvolt).

Further information:


The HARTING Technology Group is one of the world's leading providers of industrial connection technology for the three lifelines of Data, Signal and Power and has 14 production plants and 44 sales companies. Moreover, the company also produces retail checkout systems, electromagnetic actuators for automotive and industrial series use, charging equipment for electric vehicles, as well as hardware and software for customers and applications in automation technology, mechanical and plant engineering, robotics and transportation engineering. In the 2018/19 business year, some 5,300 employees generated sales of EUR 750 million. Founded on 1 September 1945, the company celebrates its 75th anniversary in 2020.

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Pumps perfected for first-of-a-kind plant to have the power to be its best

Pumps for circulating clean engine oil; a reasonably ordinary application? But then there’s nothing ordinary whatsoever about Arjun Infrastructures’ remarkable power plant in London, which generates 17MW of renewable energy from food waste and can also utilise fats, oils and greases (FOG).

”This is a first-of-a-kind plant”, said Phil Jones, Director at 2OC, who developed the plant and now manage it on behalf of Arjun.

He added: “Joining up assets that haven’t previously been linked together before has presented many engineering challenges”.

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Originally specified by Jacobs Engineering, the two 90kW lubrication pumps for the Combined Heat and intelligent Power (CHiP) plant had to be installed by main contractor J. Murphy and Sons in a very tight space, presenting the first in a series of obstacles to be overcome.

David Brown, from the pump manufacturer Börger explained: “At first we thought that this was going to be a relatively uncomplicated job, but then the small footprint was just one of many hurdles to negotiate – not to mention the fact that the pumps had to go below ground, beneath the plant’s engine”.

He added: “We designed a special base frame so that the very robust EL1550 Classic pumps could be mounted vertically into the small footprint (just 3m by 4m) – and then for easy servicing, lifted out and put on their side. Over-pressure protection was required too. All a bit tricky, but often the case when there’s not much space available.“

Producing enough energy for approximately 40,000 homes, Arjun’s power station presents no shortage of high temperatures for its assets to cope with. This includes the Börger pumps, which had special cooling radiators for the gearboxes and motors installed.

So far so good, but with the Börger pumps and the rather demanding need to make all of the new power plant’s equipment work together efficiently and economically, came a demanding, non-extendable deadline.

2020 07 14 113625“We were fully aware of this from day one”, continued 2OC’s Phil Jones, “but I can’t deny that the pressure was well and truly on. We had to meet the deadline for all-important government ROCs (Renewables Obligation Certificates) that support large-scale renewable electricity projects in the UK. To get the plant off on the right operational and financial footing, we had to make things happen to hit that deadline. We could not take our time”.

The construction contractors’ engineers were initially concerned about the noise and vibration of the two Börger pumps. As everyone in the supply chain knows, this can be a delicate balance when both parties believe they are right!

“The pumps were performing fine, but we were a little anxious at first”, added Phil Jones. “Failure wasn’t an option”.

“For us”, continued David Brown from Börger, “we believed it was simply down to natural pulsation, but as well going to site, we also brought over our top engineers from Germany. It didn’t help us or 2OC that due to the space limitations, the pipework for one pump was straight, whilst the other one was more complex, so had to cope with some pressure loss. Ultimately, we ran a test in Germany with 2OC in attendance to show that the pumps were performing fine. As it turned out, the vibration was down to nothing more than extra torque being required. Later, after another 500 hours running time, an inspection confirmed that there were no issues. It has been a bit of journey, but we always knew there was a reason, a solution.

2OC’s Phil Jones added: “Börger were totally professional – taking our concerns very seriously to get to the bottom of this mystery. Through the very positive dialogue between the two companies, it was also decided to change the pump’s removable rotor tips from rubber to a fully stainless-steel solid rotor design because of the high temperatures. Together with the stainless-steel pump-head, it now means that there is almost zero maintenance required”.

Built by J. Murphy and Sons, Arjun’s power plant sees 75GWh of the electricity sold to Thames Water for its Beckton sewerage processing plant (home to 64 Börger pumps), whilst the remaining 55GWh is purchased by Centrica.

Heat from the engine is supplied to the adjacent gas pressure reduction station owned by the Cadent (with whom Börger also has pumps in a very important application), largely replacing old gas boilers that used to pre-heat the gas – whilst heat recovery cycles of the CHiP technology increase the thermal efficiency of the Arjun plant.

Phil Jones from 2OC concluded: “Our pursuit of getting this unique power station where it needs to be has not been easy, but very much in line with what government is promoting, we now have a very neat and efficient plant. This includes the Börger pumps, which are proving very efficient, reliable and easy to maintain thus far”.


Valmet to supply automation and solids measurements to Oulu Waterworks’ wastewater treatment plant in Finland

Valmet will supply automation system extension and solids measurements to Oulu Waterworks’ Taskila wastewater treatment plant located in Oulu, Finland. With modern wastewater treatment solutions, the plant can stabilize the sludge and treat it more efficiently and meet the environmental criteria also in the future.

The order was included in Valmet’s orders received of the first quarter 2020. The order will be delivered during the second half of 2020 and the commissioning will be in the first quarter of 2021. The value of the order is not disclosed.

“The collaboration with Valmet has been smooth both in this project and before. The current sludge treatment facility in Taskila has reached the end of its lifecycle after 20 years operation. A new plant with modern sludge treatment solutions will ensure trouble-free and efficient treatment of Oulu's sewage sludge well into the future,” says Jarmo Lahtinen, Operations Manager, Oulu Waterworks.  

Taskila wastewater treatment plant in the City of Oulu. The new sludge treatment plant will be located in the lawn area next to the yellow thickeners.

"Valmet DNA is a reliable automation system for managing wastewater treatment processes. We are pleased that Oulu Waterworks, our long-term partner, has decided to extend and upgrade their existing system," says Jarmo Harjuoja, Manager, Customer Service, Automation, Valmet.

"We are confident that our solid measurements and innovative technology will increase reliability and sustainability when optimizing the wastewater treatment process," tells Juha Kesti, Sales Manager, Measurements and Analyzers, Automation, Valmet.

Information about the delivery

Valmet's delivery includes an extension and upgrades to the existing Valmet DNA automation and information management system, Valmet Total Solids Measurements (Valmet TS), Valmet Low Solids Measurements (Valmet LS), and Valmet Dry Solids Measurements (Valmet DS). Additionally, the delivery includes field engineering of the automation application and instrumentation, factory acceptance testing, automation system installation, commissioning, and training.

Information about the customer Oulu Waterworks

Oulu Waterworks is a municipal water treatment institute that is responsible for water supply and sewerage in Haukipudas, Kiiminki, Oulu, Oulunsalo, Yli-Ii, and Ylikiiminki in Finland. Oulu Waterworks provides high-quality and reliable water services to almost 200,000 residents of the Oulu region.

Oulu Waterworks has two wastewater treatment facilities. The majority of the wastewater is treated in the City of Oulu’s Taskila treatment plant which is the biggest wastewater treatment plant in Northern Finland.

Valmet is the leading global developer and supplier of process technologies, automation and services for the pulp, paper and energy industries. We aim to become the global champion in serving our customers.

Valmet's strong technology offering includes pulp mills, tissue, board and paper production lines, as well as power plants for bioenergy production. Our advanced services and automation solutions improve the reliability and performance of our customers' processes and enhance the effective utilization of raw materials and energy.

Valmet's net sales in 2019 were approximately EUR 3.5 billion. Our more than 13,000 professionals around the world work close to our customers and are committed to moving our customers' performance forward - every day. Valmet's head office is in Espoo, Finland and its shares are listed on the Nasdaq Helsinki.

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Governments should use Covid-19 recovery efforts as an opportunity to phase out support for fossil fuels, say OECD and IEA

2019 data shows a 38% rise in overall support for the production of fossil fuels

As governments design stimulus measures for economies hit by the Covid-19 crisis, they should seize the opportunity of historically low oil prices to redirect some of the half a trillion dollars spent annually supporting fossil fuels into sustainable investment including low-carbon energy, according to the OECD and the International Energy Agency (IEA).

Government support for the production and consumption of fossil fuels totalled USD 478 billion in 2019, according to analysis of 77 economies by the OECD and the IEA. While that marks an overall decline from 2018 as lower oil prices meant governments spent less subsidising energy costs for end-users, the data also show a 38% rise in direct and indirect support for the production of fossil fuels across 44 advanced and emerging economies.

“I am saddened to see some backsliding on efforts to phase out fossil fuel support. This rise in production subsidies seems set to continue in 2020 with some countries targeting state aid to fossil fuel and related industries,” said OECD Secretary-General Angel Gurría. “Subsidising fossil fuels is an inefficient use of public money and serves to worsen greenhouse emissions and air pollution. While our foremost concern today must be to support economies and societies through the Covid-19 crisis, we should seize this opportunity to reform subsidies and use public funds in a way that best benefits people and the planet.”

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G20 countries pledged in 2009 to gradually phase out inefficient fossil fuel subsidies. As well as encouraging consumption, fossil fuel subsidies are an ineffective way to support low-income households compared to targeted benefits and tend to favour wealthier households that use more fuel and energy. Money spent supporting coal, oil and gas could instead be invested in sustainable energy infrastructure, research and job training. In the Covid-19 climate, subsidies drain resources that could be spent on strengthening health system preparedness and resilience, for example.

The combined OECD-IEA estimate of fossil fuel support in 2019 shows an 18% decline from USD 582 billion in 2018 that is due mostly to the mechanical effect of the drop in global oil prices on consumption subsidies. On the production side, while several countries reduced support for coal production and state aid to coal-fired power plants, others increased support to oil and natural gas industries, mostly through investments in infrastructure, budgetary support to absorb corporate debt or preferential tax treatment for spending on production. 

The OECD’s analysis of budgetary transfers, tax breaks and spending programmes linked to the production and use of coal, oil, gas and other petroleum products in 44 OECD and G20 countries showed total fossil fuel support rose by 10% to USD 178 billion in 2019, ending a five-year downward trend. (See the OECD Inventory of Support Measures for Fossil Fuels and a data visualisation with support by fuel, economic sector and indicator.)  

IEA analysis of government interventions that keep end-user prices artificially low in 42 economies finds that consumption subsidies dropped by USD 120 billion in 2019, largely due to lower market prices. The further plunge in oil prices this year offers a clear chance to wean economies off this support. (See IEA key findings on energy consumption subsidies.)

“Fossil fuel subsidies are a roadblock to achieving a sustainable recovery from the Covid-19 crisis,” said Dr Fatih Birol, Executive Director of the IEA. “Today’s low fossil fuel prices offer countries a golden opportunity to phase out consumption subsidies. As governments look to boost jobs and plan for a better and more resilient future, it is essential to avoid market distortions that favour polluting and inefficient technologies.”

The IEA predicts that the plunge in fossil fuel prices and use catalysed by Covid-19 is set to bring down consumption subsidies to USD 180 billion in 2020, which would be the lowest level since it began tracking the data in 2007. Meanwhile, sharp declines in revenues from oil and gas production make subsidy reforms crucial to ease pressure on public finances in producer economies. (Read more.)

A separate OECD report published today, Building Back Better: A Sustainable, Resilient Recovery after Covid-19, examines ways governments can use stimulus measures to make investments and societal changes that can reduce the likelihood of future shocks and build more resilient and environmentally sustainable societies.

Fossil fuel support data by country

IEA outlook on consumption subsidies

OECD on climate change action


ACWA Power acquires 4.99% of Samsung C&T’s share in Hajr Electricity Production Company

ACWA Power, a leading developer, owner, and operator of power generation and water desalination plants, signed a share purchase agreement with Samsung C&T to acquire 4.99% of its shares, with an option to purchase the remaining stake of Samsung C&T in Hajr Electricity Production Company (HEPC) – the project company running Qurayyah Independent Power Plant (IPP) in Saudi Arabia.

  • ACWA Power’s stake in Hajr Electricity Production Company will increase from 17.5% to 22.49% following the partial acquisition of Samsung C&T’s equity
  • Hajr Electricity Production Company is the project company responsible for Qurayyah Independent Power Plant in Saudi Arabia

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HEPC is currently majority owned by Saudi Electricity Company with a 50% stake, and through a holding company, the remaining 50% ownership is held by a consortium of ACWA Power; MENA Infrastructure Fund; and Samsung C&T with shareholdings equivalent to 22.49% (up from 17.5%); 15%; and 12.51% (reduced from 17.5%) respectively. With the purchase of the stake from Samsung C&T, ACWA Power will further solidify its position as the second largest shareholder after the Offtaker Saudi Electricity Company (SEC). The total cost of the project was USD 2.7 billion, with approx. 75% of financing through long term project financed debt and the remaining in the form of equity.

The project was signed in 2011 and units commenced power delivery to the grid in 2013 - marking the project as one of the world’s largest IPP combined cycle gas-fired power projects to date. With a net capacity of 3,927 MW, Qurayyah IPP is considered one of the most efficient projects of its kind in KSA. Environmentally, the project has the potential to save more than six thousand cubic meters of carbon emissions annually.

Qurayyah IPP has won numerous awards including Top Plant (2015) recognition by “Power” magazine; GCC Winner Power & Water Project of the Year (2015) and Quality Award (2015) by MEED; Best Project Finance Deal for Islamic Finance (2012) by Euromoney; Middle East IPP Deal of the Year award (2011) by Project Finance magazine; Best Project Finance Deal (2011) by Euromoney’s Islamic Finance; and Best Power Deal from EMEA Finance Magazine.