How Businesses Use Solar and Battery Storage
The main ways companies reduce costs, protect operations, and create new revenue from energy markets.
Why deployment matters as much as hardware
The same storage system can create very different outcomes depending on how it’s used. What looks like a “2 MW battery” on paper can, in practice, serve completely different business roles.
Example: 2 MW Battery System
Manufacturing facility: 800 kW peak demand, 5,000 MWh annual consumption. The system could deliver:
€ 50,000 annual savings
by cutting peaks and shifting load into low-tariff hours
€60,000 per year in market income
when configured for frequency and reserve services
<1 second switchover
to protect production from outages and equipment damage
Modular scaling
capacity can be extended as operations expand
3 Strategic Approaches
In practice, most setups fall into three dominant approaches:
1. Cost Control
Best for: Businesses with high demand charges or expensive peak-hour tariffs
How it works: Battery charges when electricity is cheap. Discharges when prices spike or demand peaks hit
Setup:
- Battery sized to your peak usage (1-4 hours typically)
- Charges overnight when rates are low
- Solar panels reduce daytime grid usage
Business value:
- 15-25% reduction in electricity bills
- Predictable energy budgets
- Protection from demand charge spikes
Real example
Manufacturing facility with variable production shifts saves €120,000 annually by using battery storage to avoid peak demand charges during high-output periods.
Value split
2. Backup and Resilience
Best for: Operations where outages cause immediate losses
How it works: Battery switches on instantly when the grid fails. Keeps critical systems running until power returns.
Setup:
- Battery sized for essential loads only
- Automatic switching in under 1 second
- Can work with generators for longer outages
Business value:
- Zero downtime for critical processes
- Protected equipment and inventory
- Maintained production schedules
Real example
Food processing plant prevents €200,000 in spoiled inventory during each grid outage through instant battery switchover protecting refrigeration systems.
Value split
3. Market-Led
Goal: Maximise earnings from reserve markets such as manual or automatic frequency response, while still supporting the site when needed.
Setup:
- Battery optimised for high cycling and fast response.
- Most capacity committed to market dispatch.
- A small share retained for peaks or backup.
- Full compliance with system operator controls.
Business value:
- Steady revenue from capacity commitments and activations
- Secondary savings on site when not dispatched
- Ability to scale into multi-site or aggregated pools
Real example
Industrial facility with 5 MW battery earns €240,000 annually from frequency response markets while maintaining 500 kW capacity for operational peaks during high-production periods.
Value split
Frequency & Reserve Market: What You Need to Know
Reserve markets are a growing value stream across Europe, but access requires:
- Technical capability: fast response, proven reliability, compliance with system operator controls.
- Commercial fit: the right trading partner and contract structure.
Prices and hours vary widely, so detailed modelling is essential before committing capacity.
Why most businesses benefit from a hybrid approach
One system, three roles: savings, backup, and market income.
Hybrid: Balancing Savings and Market Income
Energy use in real businesses is rarely consistent. Peaks shift, tariffs move, and outages strike without warning. A single-purpose setup often leaves capacity sitting idle.
A hybrid approach keeps the asset productive across all conditions.
Setup:
- Covers peaks and shifts load into low-tariff hours
- Allocates capacity to reserve markets when profitable
- Integrates with solar to cut daytime base load
- Uses smart controls to adjust automatically as conditions change
Business value:
- Higher utilisation of the same asset across the year
- Multiple revenue streams reduce reliance on one outcome
- Automated optimisation improves financial return
- One solution that meets both operational and strategic needs
Value split
Why Business Need a Strategy First
Set the right mix of savings, resilience, and market income using your data. Three inputs set the outcome
Load curve
Peaks, durations, and ramp rates define the battery power and capacity you actually need.
Tariffs
Today’s and future prices show where shifting or shaving delivers the biggest savings.
Growth
Expansion plans and risk appetite decide how much capacity to commit to markets.
An Energy Strategy puts your business first
We analyse your actual energy use, not generic assumptions. This identifies the split that maximises your specific returns.
Real example: Balsnack — a food manufacturer
Challenge: For Balsnack, energy wasn’t top of mind, not because it didn’t matter, but because everything else came first: production, product, people, exports.
Electricity was just another rising cost. Until it became clear it didn’t have to be passive.
We worked with Reigo and his team to structure a clear investment plan that fits Balsnack’s scale, timing and priorities, not just technically, but also operationally and financially.
“We’re very deliberate about what we take on. This gave us a way to treat energy like any other strategic input with structure, not assumptions. Now we know how to plan it and how it connects to the rest of our business. The plan treats electricity like any other strategic input — structured, measured, connected to the business.”
Reigo Rusing, Development Manager at Balsnack
How It Works in Practice
Why This Approach Protects Long-Term Value
Designed to deliver over the long term
Strategic fit
aligned with your actual load profile and growth plan.
Technical compliance
market-ready even if participation comes later.
Cost efficiency
avoids costly re-work from undersizing or misalignment.
Operational control
ability to shift between savings, backup, and market roles as priorities change.
Future-proofing
trader choice and adaptable setup keep the system valuable over 10+ years.