Energy Savings

Emergent Energy – Solar PV Investment

Electricity prices are hammering every industry in Southern Africa, however over the last 2 years, solar has become a very appealing offering. Howard Lipman of Tems Meat in City Deep, fed up with increasing electricity tariffs was a first mover, opting to use Emergent Energy. Contractually bound by a performance guarantee, the ball is now in the solar providers’ court. If the performance doesn’t match the promises presented, Emergent Energy will have to pay. Solar EPC’s like Emergent Energy is backed by numerous financial institutions, having access to various power purchase agreements, instalment sales agreements and “welcome to solar” bonuses. After multiple electricity tariff hikes, financial managers must consider cost saving projects that can reduce bills up to 40% with payback periods of under 3 years. The 12B tax incentive is the “cherry on the top” for hard-pressed energy consumers and is one Government initiative which really encourages businesses to go green. “The penny has dropped! Cold stores will move in the 1st quarter of 2020. Another 10-15% tariff increase will be too damaging.” -Gregory Lovell (Business Development Manager at Emergent Energy) gregl@emergy.co.za Although roof-based solar PV energy cannot supply all the electricity required in the event of a blackout, it will significantly reduce standby generator sizing and diesel consumption.

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Case picking solution

A space saving, efficient and cost effective solution to case picking in cold stores

Article by Rob Kershaw, Sales and Marketing Manager, Barpro Joburg. One of the biggest challenges in managing and running a cold store facility is how do we pick individual cases as opposed to full pallets. In the past most cold store facilities were set up for full pallet distribution. In and out. However over the last decade or so retailers are moving away from carrying large quantities of stock on pallets rather ordering cases in line with demand freeing up capital investment in stock. So cold store facilities have to be set up to handle case picking as well as full pallets and very often at the same time. As the leading supplier of high dense mobile racking systems into the cold store sector at Barpro we have seen an increasing demand for case picking. Seeking solutions for our customers Barpro approached our principals STORAX based in the UK, to see now how their industry had coped with the challenge. The idea of multi-tier structural mezzanines is growing rapidly in the UK as a cost effective, space saving and super-efficient case picking solution, in mobile racking freezer stores. STORAX UK has installed a number of structural mezzanines in freezers and confirm that this solution offers great benefits for cold store operators.     How do they work? 4 or 5 levels of flooring interconnected by stairwells installed in a corner or outside the cold store taking up the least space possible. Reach trucks retrieve full pallets from the mobile racking and feed them onto the floors via 1 or 2 pallet gates. Staff with pallet jacks to transport them to dedicated picking locations. From here cases are picked to pallet jacks and transported back to the pallet gates for the reach truck to remove and place in the staging area, which could be static racks alongside the mezzanine or the floor on the bottom level. 1 picker works each floor and gets to know the location of the different SKUs. Knowing the products on his floor allows him to pick the heaviest products first to go on the bottom of the pallet and lightest at the top. This prevents crushing. On a recent trip to Europe I went to investigate mezzanine case picking solutions at one of the largest cold storage facilities in the UK and a long standing customer of STORAX. It is a massive operation and the volumes speak for themselves: One site. 52 acres. 135 000 pallet positions on high dense STORAX mobile racking in cold storage. 1000 pallet movements per day 400 – 500 trucks / day, pallets double stacked. 30 000 cases / day picked over a double shift. 10 pickers each picking 3000 cases a day. Case picking is approximately 2-3% of total throughput.     On average his client used to pick from the bottom level of the mobile racks but as demand for case picking grew needed a more efficient solution was required. The client is satisfied that the 2 x 5 level mezzanines are meeting their expectations and identify the following benefits:   Efficiency Dedicated picking area where pickers can pick uninterrupted by reach trucks moving in the aisles. In Australia it’s now illegal to have pickers and reachtrucks operating in the same area. Reach trucks can get on with their work not worrying about pickers. Safety Reduced accidents between pickers and reach trucks due to 1 and 2 above. No chance of product from upper static racks falling on pickers walking in the open static rack aisles. Best solution to achieve the amount of pick faces required which is a challenge with growing product ranges and new customers. All pick faces on floor level. No need for costly material handling equipment to pick from 2nd, 3rd or even 4th pallet level. Smooth and efficient replenishment of the pick face between reach-truck and pallet jack operators. Space saving The whole volume of the cold store is being used. With floor pitch around 2.5m very little space is wasted. Mezzanines are tucked into the side or corner of the cold room only I aisle is required for the reach truck to feed it. Reducing number of aisles required and increasing income generating storage capacity.   Another potential benefit of this solution is the opportunity to implement to ‘pick by voice’ technology. This would take picking efficiency to an even higher level.   Some of the technical features Heavy duty structural I Beams for vertical and horizontal support. 6mm thick steel plates as flooring creates a solid floor for smooth pallet jack movement. Bolted construction allowing movement and flexibility for dynamic and evolving business needs. The structure can be mounted on mobile racking rails. This increases strength and also allows for the possibility to install high dense storage mobiles in the future offering flexibility should demand for case picking drop. Energy saving LED lighting. Black polished steel reducing glare and floor reflections on pickers. Cold air distribution socks over blowers to circulate and distribute cold air above top floor.   To make maximum use of the picking efficiencies multitier mezzanines offer, picking staff need to be equipped with high quality freezer clothing. This significantly increases the amount of time they can spend in the cold store without taking breaks. Barpro offers the DELF range of high quality freezer wear which is a must for cold store picking.   There is increasing interest among South African cold stores who can see the potential benefits. Multi-tier mezzanines can give a significant edge over competitors especially in the field of 3rd party cold storage distribution. Being able to case pick more cost effectively while using less volume gives an edge in this price sensitive market.   Let us help you create that edge. Call Barpro for more information. Cape Town: 021 552 9190 Johannesburg: 011 450 1075 Email: info@barpro.co.za [gravityform id=”5″ title=”true” description=”true”] Read more: Changing Load Parameters in Mobile Pallet Racking Read more: Storax Ramada Ranger Shuttle launches in SA Read more: How to choose the right storage system

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hydrogen fuel-cell technology buses

Are hydrogen fuel-cell buses headed to South Africa?

The following has been reproduced from “Creamer Media’s Engineering News” (September 2017) with kind permission of Kenneth Creamer, and continues the subject of hydrogen fuel-cell technology, which we’ve touched upon in previous issues.   “Electric buses powered by platinum-catalysed fuel cells are attracting the attention of South Africans, who will visit Germany next month to update themselves on passenger carriers that emit zero pollution into the atmosphere.   There’s a lot of interest in fuel cell buses simply because the refuelling points can be centralised at a depot. In February, South African fuel cell protagonists and government officials met their German counterparts in South Africa to discuss a pilot project involving the introduction of hydrogen fuel cell buses in cities in South Africa.   Germany, which has already rolled out some such buses in Berlin, Stuttgart and Hamburg, earlier this year shared its experiences with a range of interested South Africans from municipal officials and the platinum executives to universities and Hydrogen South Africa.     Now, representatives of many of South Africa’s metros, with officials from the Passenger Rail Agency of South Africa, will be visiting Germany to see first-hand what is being achieved with fuel cell powered passenger transport.   Anglo American Platinum (Amplats) has reported that China is targeting one-million fuel cell electric vehicle sales by 2030, with orders for 18 000 fuel cell buses and light delivery vehicles placed in the first five months of this year.   Fuel cells convert hydrogen into electricity through a chemical reaction that relies on platinum’s catalytic role.  Implats has developed fuel cell applications, including a fuel cell driven forklift, and identified an original equipment manufacturer for the development of fuel cell driven load haul dumpers (LHDs) and underground equipment.   Several mining companies are considering how fuel cells can be used within their own operations. From a pure zero-emission perspective, it makes sense to use fuel cell equipment underground, but a prototype that works is needed first before that can actually happen.   Many believe that South Africa should be supporting and promoting its own fuel cell applications and own technologies to create demand for platinum. An SEZ where fuel cell manufacture can take place could lead to the commercialisation of items like fuel cell forklifts and buses.   When it comes to fuel cells generating clean electricity, the combination of heat-and-power applications makes economic sense.   In the 1960s, United Technologies Corporation of the US developed fuel cells for the Apollo space mission and since then, fuel cells have been supplied into every manned space mission.   Meanwhile, fuel cell electric vehicle sales are expected to grow by more than 200% this year, with Japan targeting 200 000 fuel cell electric vehicles on its roads in 2025 and 800 000 in 2030”.   Note that this article has been considerably reduced in size and content for brevity, but the full piece, “Electric buses expected to spur platinum demand – Implats“, provides a lot more detail linking this technology to the future of our valuable platinum industry, and also other potential uses such as clean electricity generation.     Read more: Fuel Cell Technology For Materials Handling Equipment Read more: Would you like to reduce energy usage in your freezer store? Read more: Newly built cold & freezer stores should be independently inspected  

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