Solar Power · Battery Storage · Contracting or Purchase · Europe-wide
Photovoltaics and battery storage — no hardware lock-in, no platform lock-in.
We don’t build a supplier ecosystem. We build what’s on your site—planned, constructed, and operated. Photovoltaic systems and battery storage starting at 1 MW capacity, available for purchase or on a Contracting basis, with tenders conducted per site and open modeling based on KPMG-audited market benchmarks.
Reduce electricity costs, increase self-sufficiency, cut peak loads — with a system that remains yours. Across Europe.
Industrial companies have trusted CUBE CONCEPTS since 2020
Completed Projects with Industrial Companies
01 — What's Holding Back Energy Decisions
What really stops energy decisions.
In most industrial companies, an energy project doesn't fail due to technology. It fails because multiple pain points are on the table simultaneously—and none of them can be solved individually.
Lowering electricity costs, yes — but at what price? Which investment offers reliable returns over 20 years, and which collapses at the first regulatory hurdle? Assumptions that don't hold cost more than excessively high electricity prices.
Check economic viabilityHardware from a single source, software from a single source, grid connection from a single source – convenient, until the provider dictates prices or disappears from the market. Energy infrastructure over 20 years cannot tolerate dependence on a single supplier.
What we do differently$0 in CapEx or a full investment. 100% revenue or profit sharing. On-balance-sheet or off-balance-sheet. Three decisions, one consequence for 20 years—and none of them is universally correct.
Compare models§ 19, § 118 EnWG, AgNes — three levers in network charges, each with a deadline. Those who wait won't have them.
Next due date is being calculated... Network fee optimization in detailFire protection, structural integrity, permits, insurance, CSRD resilience, maintenance over 20 years — six topics, six contacts, no overall picture.
Security & ApprovalPhotovoltaics isn't the endgame. It's the ticket in – to self-sufficiency, to market participation, to storage projects that wouldn't even exist without PV as a precursor.
Photovoltaics in detailYour load profile shows peaks. Your storage would cap them – if the control system knows which revenue driver is currently dominant each hour.
Multi-Use in Detail02 - What Sets Us Apart
We are not building a vendor ecosystem. We build what you have.
Closed provider ecosystems are increasingly emerging in the industry—hardware lines, software platforms, and one-stop energy market contracts. We are consciously doing the opposite. Energy infrastructure with a lifespan of 15-20 years is a strategic decision that should not be left in the hands of others.
01 · Hardware
Tender per location. No own brand.
Component selection based on individual site calculations. No proprietary hardware brand, no supplier lock-in, no hidden supplier margins. What you get are standard industrial goods – interchangeable on the market.
02 · Software
Industry standards. No proprietary platform.
No proprietary control platform. Energy management and EMS based on common industry standards, transferable to third parties. Once purchased, you retain ownership of the control logic, even after years.
03 · Market Access
We are not an energy provider.
Residual current procurement remains in your hands. Battery storage and photovoltaics will be integrated into your procurement strategy, not replaced by it.
Open Book means: you see the component costs, you see our margin, you see the revenue assumptions. Half-hourly load profile modeling based on KPMG-audited market benchmarks, verifiable at any time.
03 — What We Build
What we are building.
Two technologies, four models. Photovoltaics and battery storage as equal pillars — depending on location, load profile, and CapEx strategy.
Photovoltaics
Solar power as an entry ticket to self-sufficiency and market participation.
Your plant, built on resilient load profile data — from a single site to a Europe-wide multi-site rollout. Rooftop or open space, own consumption or direct marketing.
[ Number of kWp installed - to be added ]
[Self-consumption rate - to be added]
Battery storage
Industrial BESS for self-consumption, multi-use, and market participation.
Independently sized, at least 3 comparative offers, LCOS-rated. Substantial project pipeline in realization and project planning — from single site to multi-site rollout.
FTM, BTM or combined · Multi-use designed for § 19, § 118, AgNes.
Battery storage in detail04 — One Location, Three Worlds
An industrial site. Three regulatory worlds.
Industrial Location Saxony: 1.895 kWp PV inventory, 1 MW / 2 MWh BESS, 6.795 MWh annual consumption. What the technically identical storage system can do – and what regulatory consequences will arise from it.
Source: CUBE CONCEPTS modeling based on real half-hourly load data and KPMG-audited market benchmarks (February 2026). Profit Share Contracting: CUBE 75% % / Customer 25% % of net market revenues after OPEX. Customer retains 100% % of BTM revenues undivided.
Multi-Use BESS in Detail · Initial consultation for own load data analysis
05 — CPFS · Grid Connection as an Asset
Monetize grid connection — without investment, without operational risk.
CPFS in the Contracting model — CUBE finances, builds, operates, and markets. Many factories, logistics centers, and production facilities have a grid connection capacity that exceeds their actual electricity needs. This unused connection capacity is dead capital — and at the same time a sought-after asset for large-scale battery storage projects. CPFS is one of the models CUBE uses to implement industrial projects—and the only one that works without any investment from the site operator. CUBE finances, builds, operates, and markets a multi-use large-scale storage facility on your property. You provide the site and the connection. You receive 25% of the net market revenues.
What you bring
A space at your location with sufficient network connection capacity.
Nothing more. No CapEx, no OpEx, no operational risk, no marketing burden.
What CUBE brings in
Project Development, Construction, Operation, and Marketing.
Permitting process, financing, plant construction, commissioning, maintenance, monitoring. Marketing on the spot market, balancing power, and atypical grid usage. CAPEX risk, market risk, and operating risk lie with CUBE.
What you get
25% of net market proceeds after OPEX.
Modeling revenue streams based on KPMG-audited market benchmarks. Full transparency on marketing strategy and margin structure.
A load profile analysis shows in 30 minutes whether your grid connection is suitable as a CPFS revenue asset. Three numbers are sufficient: grid connection capacity, annual consumption, 15-minute load profile.
06 — Visible Instead of Promised
Visible, not promised.
Over 150 PV and battery storage projects across Europe. Completed, under construction, planned.
Over 150 locations are on the map. Let's talk about your
07 - The Team
Over 45 heads at three locations.
The interdisciplinary team of CUBE CONCEPTS: over 45 energy experts, a mix of generations, cultures, and expertise.
08 — Three numbers for the initial consultation
A sound economic feasibility study doesn't need 50 slides.
She needs your load data. With these three points, we will give you an initial reliable assessment within 30 minutes.
Mains connection power
In kW. Medium or high voltage.
Annual consumption
In MWh. Rounded off is enough for the initial consultation.
15-minute load shed
As Excel or CSV. Typically from the network operator.
09 — Frequently Asked Questions
Frequently Asked Questions about Industrial Battery Storage and Photovoltaics.
Answers to the most frequently asked questions by plant managers, energy managers, purchasing managers, and managing directors before starting an energy project.
Industrial battery storage currently costs between €250/kWh and €200/kWh for capacities up to 2 MWh, and between €175 and €200/kWh for capacities of 5 MWh or more—depending on cell chemistry, site-specific factors, and the chosen model. In the CPFS model, the investment is eliminated entirely—CUBE provides financing, and the site receives 25% of the market proceeds. Modeling per site based on KPMG-audited market benchmarks.
CPFS is a Contracting model for monetizing unused grid connection capacity. CUBE finances, builds, operates, and markets a large-scale multi-use battery storage system on the site operator’s property. The site operator receives no revenue other than the use of the land and the connection. Revenue distribution: CUBE 75% (%), site 25% (%) of net market revenues after OPEX.
CUBE does not bring its own hardware brand, its own software platform, or its own electricity market contract. Components are selected via tender, energy management runs on industry standards, and residual power remains in the customer's hands. The energy system remains transferable throughout – no vendor lock-in to ecosystem.
Three levers work together: self-consumption optimization (using PV electricity oneself instead of feeding it into the grid), peak load capping (reducing grid fees via atypical grid usage and Section 19), and multi-use revenues (spot market, balancing energy). How much each lever contributes depends on the load profile—a 30-minute load profile analysis shows this concretely. Assumptions are modeled based on KPMG-audited market benchmarks.
CUBE realizes photovoltaic and battery storage projects with capacities starting at 1 MW. Projects typically range from single-digit to double-digit MWh, and significantly higher in the CPFS model—depending on grid connection capacity and site specifics.
Multi-Use means that a battery storage system serves multiple revenue streams simultaneously: self-consumption optimization, peak load shaving, atypical grid usage, spot market arbitrage, and grid balancing services. The control logic prioritizes which streams are used each hour based on the current load profile and market prices. This multiple usage significantly increases profitability compared to single-use applications.
§ 118 EnWG exempts battery storage systems from grid fees and other end-consumer levies – but only if commissioning occurs by August 4, 2029. Those who miss the deadline lose this economic advantage for the entire system operating life. Realistic project duration from initial consultation to commissioning: 12 to 24 months.
BESS Contracting means: CUBE finances and builds the storage system; the customer uses it for self-consumption and peak shaving — revenue and risk are borne partially or entirely by the customer, depending on the model variant. CPFS goes a step further: CUBE also handles marketing on the spot market, balancing energy, and atypical grid usage — the site provides only the space and connection, receiving 25% of the net market revenues. Both models require no investment from the customer.
Free initial consultation
Analyze the last gas passage — First assessment within 30 minutes.
CUBE CONCEPTS analyzes grid connection, load profile, and price structure—manufacturer-independent, open-book, without commitment.
Request initial consultationTelephone +49 2131 205220 Email info@cubeconcepts.de Free · no commitment