(Updated April 2026) For years, photovoltaics have been considered a stable and sustainable investment. However, with declining feed-in tariffs, the increasing importance of electricity markets, and new technologies such as battery storage, the question arises anew:
Is photovoltaics still worth it as an investment today?
The short answer: Yes – but differently than before.
Why photovoltaic as an investment remains attractive
Photovoltaics offers a rare combination of:
- Forecastable cash flows
- Inflation protection
- Sustainable Impact (ESG)
- Technologically advanced infrastructure
Especially in the commercial sector (rooftop systems & solar parks), PV remains one of the most stable energy investments.
How do you make money with photovoltaics?
1. Self-consumption (most important return driver)
- Electricity is generated directly in the company
- Used savings of:
- Electricity price
- Network charges
- Taxes
This usually leads to a higher economic impact than feed-in
2. Direct Marketing & Electricity Sales
- Sale of electricity on the market
- Participation in:
- Spot market
- PPAs (Power Purchase Agreements)
Leads to higher revenues than classic feed-in tariffs – but fluctuating
3. Feed-in tariff (basic model only now)
- Legally guaranteed remuneration (EEG)
- budgetable income
- but: mostly below market prices or own consumption value
4. Additional Revenue from Battery Energy Storage Systems (BESS)
- Increase photovoltaic self-consumption
- Reduce peak loadsPeak Shaving)
- Optimization of electricity procurement
- Participation in Control energy
- Power trading
This is the Crucial Levers for Modern PV Returns.
What returns are realistic?
The return depends heavily on the model:
| Model | Typical return |
| Classic feed | approx. 4–6 % |
| Optimized for self-consumption | approx. 6–10 % |
| Solar PV + BESS + Market Integration | >10 % possible |
The more optimized, the higher the return.
How quickly does a solar panel system pay for itself?
Typical payback period
- 6 to 8 years old commercial
- often faster with optimized systems
Lifespan:
- Module: 25–30 Years
- Inverter: approx. 10-15 years
Is photovoltaics inflation protection?
Yes – for two reasons:
- Electricity prices are rising in the long term
- PV consistently produces cheap electricity
Result:
- Real costs decrease over time
- Revenue or savings increase
What are the risks?
1. Electricity price and market price risks
- fluctuating stock prices
- declining feed-in tariffs
Solution: Hybrid models (self-consumption + PPA)
2. Technical Risks
- Inverter failure
- Degradation the module
Security
- Maintenance
- Reserves
- Photovoltaic insurance
3. Regulatory Changes
- Energy law constantly evolving
- new market mechanisms (e.g., flexibility markets)
Here, particularly flexible plant concepts are helpful.
4. Planning and Location Factors
- Shading
- Poor alignment
- incorrect dimensioning
These are decisive for the return.
What role do new business models play?
On-site Contracting models
- PV system at the point of consumption
- maximum self-consumption
- no investment necessary
- Electricity is purchased cheaply via PPA
The model involves minimal risks, but also generates lower returns.
Offsite model
- Green electricity is generated externally
- Long-term supply contracts with fixed electricity purchase prices
The model is ideal for high energy demands without its own space.
ESG & Sustainability as Additional Value Drivers
Photovoltaics meet key ESG criteria:
- CO₂ Reduction
- sustainable energy supply
- positive outward effect
This is becoming increasingly crucial for:
- Investors
- Banks
- Customers
Is photovoltaics worthwhile as a capital investment?
Yes – if the system is designed correctly.
The era of „simple feed-in tariffs“ is over. Today, the following applies:
Value is created through intelligent system integration
- Own consumption
- Battery storage
- Energy management
- Electricity market integration
Conclusion: Photovoltaics Remains a Top Investment – With a New Approach
Photovoltaics in 2026:
- less of a „passive investment“
- more of a active energy system
Companies and investors benefit especially when they:
- Use your own electricity
- Create flexibility
- Integrate market mechanisms
He who takes this into account, receives:
- stable returns
- high planning security
- real inflation protection
Frequently Asked Questions
Will photovoltaic still be worthwhile as an investment in 2026?
Yes, photovoltaics remains an attractive capital investment. Systems with high self-consumption, battery storage, and intelligent electricity marketing are particularly economical.
What return does a solar PV system provide?
Depending on the design, the return ranges from approximately 4–6% to over 10%. Optimized systems that incorporate self-consumption and storage achieve the highest returns.
How do you make money with photovoltaics?
Through on-site consumption, electricity cost savings, direct marketing of electricity, as well as additional revenue through battery storage and electricity market participation.
How long does the amortization take?
The payback period is usually between 6 and 10 years – depending on the location, usage concept, and electricity price development. BESS can pay for themselves after just 2-3 years, depending on the application concept.
Is photovoltaic a safe investment?
Photovoltaics are considered a comparatively safe form of investment with predictable returns, especially with long-term use and good planning.