Energy Cost Stack
Understanding what makes up your business energy bill is essential if you want to control costs effectively. While many organisations focus purely on the
unit rate, the reality is that your total energy spend is made up of multiple components -- often referred to as the “energy cost stack.” By breaking this down, businesses can identify opportunities to reduce costs and make more informed
procurement decisions.
Wholesale Energy Costs
At the base of the stack is the wholesale cost of energy. This is the price suppliers pay to purchase gas and electricity from the market. It is typically the largest variable element of your bill and is influenced by global supply and demand, geopolitical events, and seasonal factors.
As wholesale prices fluctuate, timing your contract correctly can have a significant impact on what you pay. Locking in rates at the right moment can protect your business from market volatility.
Network and Distribution Charges
Energy arrives at your premises after having been transported via the UK’s infrastructure.
Network charges cover the cost of maintaining and operating the electricity grid and gas pipelines. In recent years, large upgrade projects have been undertaken to upgrade this network in order to be able to accommodate an increased amount of renewable energy. This has led to the cost of
network charges rising significantly.
These charges include
Transmission Network Use of System (TNUoS) and
Distribution Use of System (DUoS) costs, which vary depending on your location, usage patterns, and time of consumption. For some businesses, particularly those with high or peak-time usage, these charges can represent a substantial portion of the total bill.
Environmental and Government Levies
A growing part of the energy cost stack comes from
environmental and policy-related charges. These include schemes designed to support renewable energy generation and reduce carbon emissions.
Examples include the
Renewables Obligation (RO),
Feed-in Tariffs (FiTs), and
Contracts for Difference (CfD). While these charges support the UK’s transition to net zero, they are ultimately passed on to businesses through their energy bills.
Supplier Costs and Margins
Suppliers also include their own operating costs and margin within your unit rate and
standing charge. This covers billing, customer service, risk management, and profit. While this portion is typically smaller than wholesale or network costs, it can vary between suppliers and contract types.
This is why comparing offers from multiple suppliers is so important. Small differences in margin can add up over the life of a contract.
Non-Commodity Costs and Hidden Charges
Beyond the headline rates, there can be additional costs that are less visible but equally important. These may include standing charges,
capacity charges, and penalties linked to contract terms such as exceeding agreed usage.
Understanding these elements is key to avoiding unexpected costs. For example, a contract with a low unit rate but high standing charges may not be the most cost-effective option.
Why the Energy Cost Stack Matters
By understanding the full energy cost stack, businesses can move beyond simply chasing the cheapest headline rate and instead focus on overall value. It allows for smarter procurement decisions, better budgeting, and more effective cost control.
Working with an
energy broker can make this process far simpler. A broker can break down
supplier quotes, highlight where costs are coming from, and identify opportunities to optimise your energy strategy. Whether that’s through better timing, improved contract structures, or ongoing cost management.
If you want greater transparency and control over your energy spend, SeeMore Energy can help.
Get in touch today to uncover savings and build a smarter approach to your energy procurement.
