Frequently Asked Questions (FAQ)

Complete Solar Energy | Solar PV, Battery Storage & More

Welcome to our FAQ page. Here, we answer the most common questions about solar PV systems, battery storage, DNO approvals, and our installation and aftercare services across the UK. If you have a specific question not covered below, please don’t hesitate to contact us.

1. How does a solar PV system work?

Solar photovoltaic (PV) panels convert sunlight into electricity using semiconductor materials. This electricity powers your home or business, reducing your reliance on the grid and cutting your energy bills.

2. Do I need a battery storage system?

While not essential, battery storage systems allow you to store excess energy generated during the day to use at night or during power outages. This increases your energy independence and maximises the benefits of your solar system.

3. What is DNO approval, and why is it required?

DNO (Distribution Network Operator) approval is required before connecting your solar PV system to the UK electricity grid. This ensures that your installation complies with local grid requirements.
At Complete Solar Energy, we handle the entire DNO application process for you—so you don’t have to worry about the paperwork.

4. Are modern solar panels more efficient?

Yes. Modern solar panels are more efficient, durable, and aesthetically pleasing than ever before. Many now come with 25+ year performance warranties and higher energy yields even in lower light conditions, making them ideal for the UK climate.

5. How long does a solar installation take?

Most standard residential solar PV systems are installed within 1 to 2 days. We aim to keep disruption to a minimum and ensure a clean, professional finish every time.

6. What happens after my system is installed?

After installation, we:

Activate your monitoring system, so you can track your energy production in real-time via a smartphone app or web portal.
Provide a full handover pack, including warranty documents and user guides.
Offer dedicated aftercare support, should you ever need assistance or maintenance.

7. Will solar panels increase my property’s value?

In many cases, yes. Homes with solar energy systems often appeal to buyers looking for lower energy bills and greener living. It’s a long-term investment that benefits both your finances and the environment.

8. Can I still switch energy suppliers with solar panels?

Absolutely. Your solar system is independent of your energy supplier. You can switch tariffs or suppliers whenever you like, just as you would normally.

9. What if there’s no sunlight? Will my system still work?

Solar panels still generate electricity on cloudy days, just at a reduced output. That’s where battery storage comes in handy—storing excess energy for later use. You’ll also remain connected to the grid for backup power.

10. Is solar right for my property?

Most UK properties are suitable for solar. Factors like roof direction, shading, and available space play a role. We offer free consultations and remote assessments to help determine the best setup for your home or business.

Need More Help?

If your question isn’t listed here, feel free to get in touch with our friendly team. We're always happy to help guide you through your solar journey.

📞 Call us: 01708 837 027 / 07745 342 351
📧 Email: info@completesolarenergy.co.uk