Volue solution boosts the bottom line of waste management companies and industry.
30 aug. 2023
Optimised dispatch of power plants, energy storage systems and similar assets is standard practice in the energy industry. It enables better use of the energy, better sale and purchase prices on the power exchanges, and the marketing of flexibility on the balancing energy market. But specific expertise is required for these optimisation solutions. So what can companies do if they want to optimise the operation and marketing of their energy assets but do not have enough resources with expert know-how? This was the question facing Swiss waste management companies Satom SA (Monthey) and Renergia Zentralschweiz AG (Perlen). Both companies wanted to optimise the deployment of their assets and leverage the potential to market their flexibility in order to boost their revenue and participate in the balancing energy market.
Rytec AG (Münsingen, Switzerland) helped the two companies find the solution they were looking for. Rytec specialises in strategic asset planning and design and in consultancy services for the energy and waste management industry. It offered to work with the two waste management companies to develop an optimisation solution tailored to their specific needs. “This idea eventually led to today’s Energy Cockpit, which is based on Volue BoFiT and the Volue Thedora Dashboard”, says Rytec’s Jörg Boltshauser.
The first step was for the project participants to define their requirements. As Boltshauser explains, it wasn’t just a case of optimising a waste management plant vis-à-vis the market:
“While the companies obviously wanted to optimise the utilisation of the electricity and heat generated, they also wanted to incorporate power-to-heat and thermal storage systems, as well as power-to-gas or power-to-hydrogen systems, cogeneration plants and peak load boilers in the future. CO2 emissions were also an important consideration right from the outset.”
In other words, the aim was to develop an optimisation solution that covered different sectors and asset types and took several different factors into account:
To meet these requirements, the Energy Cockpit must process large volumes of data, employ multiple models and generate numerous forecasts, e.g. for heat demand, process steam demand and market price trends. “The Energy Cockpit had to process extensive time series, generate or incorporate forecasts and be able to recommend optimizations based on complex asset models and interconnections.”
Once the requirements had been established, Rytec conducted a market research process and contacted 16 optimisation solution providers. The prequalification process identified three particularly strong candidates, including Volue.
According to Jörg Boltshauser, it is easy to see why Volue was eventually chosen as the provider: “The company had extensive references and decades of optimisation experience. Volue stood out as the only provider able to offer a simple and intuitive user interface. And a visit to a reference customer who uses Volue’s BoFiT convinced us that this solution would meet our needs.”
BoFiT generates asset dispatch recommendations using a model that incorporates variables such as supply obligations, marketing opportunities and technical constraints. Since the optimisation is updated at regular short intervals, the asset fleet can be marketed on the spot market as well as over the medium to long term. BoFiT includes an extensive library for asset and constraint modeling. The modeling interface allows the individual components to be easily modified and the relevant interconnections to be generated, creating an accurate model of each individual system. Subsequent modifications of the model are of course also possible, as is the addition of new asset components. These changes can also be used to simulate what-if scenarios in long-term models. “This can be useful for assessing the profitability of investments, for example”, says Boltshauser.
Since BoFiT is designed for energy experts and traders, it was not suitable for implementing the Energy Cockpit on its own. “We don’t have specialists like this in our waste management businesses. The plant manager or shift supervisor must be able to use the system with a minimum of training”, explains Rytec’s Boltshauser. “So we needed a simple human-machine interface.”
The user interface solution is called Thedora Dashboard. This new, multifunctional Volue tool was specially developed for the Swiss project. The Thedora Dashboard:
The Thedora Dashboard features user-friendly widgets. “The dashboard reduces BoFiT’s complexity so that it can also be used by non-experts”, says Boltshauser. Users can configure the widgets to create their own personalised operating interface. Because the Cockpit also communicates with the control system, it can display current asset operating data and, conversely, provide the schedules required by the control system.
Thanks to the Thedora Dashboard, the BoFiT optimisation software effectively runs in the background. The cloud-based system is multi-client enabled. In cooperation with Volue, Rytec offers BoFiT and Thedora as a SaaS (Software as a Service) solution so that the user doesn’t have to worry about operation or maintenance and updates. “Because it’s a multi-client solution, the system can be shared by several users, which helps to keep costs down.” And it is no longer just the companies that initiated the Energy Cockpit, Satom and Renergia, who are benefiting from these economies of scale – they have now been joined by Future Hub Region Thun AG, GEKAL (KVA Buchs AG) and other waste incineration, cogeneration and district heating plant operators in the region.
The Energy Cockpit provides users with robust demand and revenue forecasts that help them to produce next-day dispatch plans and take advantage of favorable opportunities on the spot and balancing energy markets during operating hours. The Energy Cockpit also helps to optimise profitability outside of the day shift, since resource planning for the evening and night is also based on the forecasts.
Pooling enables better use of potential in the waste management sector and industry
Pooling reduces the cost of acquiring the Energy Cockpit, while the operating, IT security and further development costs can be divided by the number clients. “The optimised dispatch, leveraging of flexibility and spot market marketing opportunities all boost the bottom line”, says Boltshauser. “So other waste incineration plant operators could also benefit from this optimisation solution.”
However, according to the energy expert, it is not only waste management companies or district heating network operators who can use the system. “The Energy Cockpit based on BoFiT and Thedora also offers benefits for industry. If industrial power plants have free flexibility, this can be marketed without limiting their own usage. By the same token, the Energy Cockpit helps users decide whether it is worth using cogeneration plants to meet pure electricity demand or whether it would be cheaper to buy the electricity in. And the modeling enables long-term forecasts that allow the profitability of investments in energy and infrastructure assets to be assessed more accurately.”