Powering a Sustainable Future Since 2010
We’ve been a trusted and dependable team for over 15 years
Efficient
and EV charging options
UK’s Leading Solar Installation Experts – 15+ Years of Experience
Founded in 2010, we are one of the UK’s pioneering companies in the renewable energy sector, specialising in commercial solar solutions.
-
Driven by Expertise, Backed by Experience.We Deliver Excellence Every Time.
-
From Start to Finish, We've Got You Covered.Delivering Comprehensive Services You Can Trust.
-
Tailored Solar Solutions for Your Unique Needs.Empowering You with Sustainable Energy Choices.
Driven by Expertise, Backed by Experience,
We Deliver Excellence Every Time.
Driven by Expertise, Backed by Experience,We Deliver Excellence Every Time.
Seamless Commercial Solar Solutions
We provide businesses with a smooth transition to solar energy, from initial consultation to installation and beyond.
- Expertise in system design, grid applications, and compliance
- Seamless integration with minimal disruption
- Maximised efficiency and long-term cost savings
Ongoing maintenance to optimise energy production
We help warehouses, offices, factories, and agricultural sites achieve energy independence and sustainability.
Solar Power & Electricity Solutions
Our Products
Solar PV Panels
Electricity Bills.
Reliable Domestic Solar Solutions
We make switching to solar effortless for homeowners. From consultation to installation and ongoing support, our expert team designs tailored solar systems that integrate seamlessly with your home, maximising efficiency while reducing electricity costs.
- Hassle-free process – We handle system design, compliance, and installation.
- Energy independence & lower bills – Enjoy sustainable energy with long-term savings.
- Ongoing maintenance & support – Keeping your system running at peak performance.
Empower your home with clean, renewable energy today!
Nationwide Network for Comprehensive Solar Services
Based in Nottingham, our team of fully trained engineers is ideally positioned to cover the entire UK with easy access to major motorways and transport links.
Why choose Spectrum?
Extensive Expertise
Our team consists of highly experienced professionals, supported by a skilled and fully qualified workforce passionate about renewable and solar technology.
Quality Assurance
We do not favour a single manufacturer, as the industry offers a wide range of choices. Instead, we carefully select the best products and technologies to suit your budget, ensuring your system is both efficient and reliable.
We do not favour a single manufacturer, as the industry offers a wide range of choices. Instead, we carefully select the best products and technologies to suit your budget, ensuring your system is both efficient and reliable.
Custom Solutions
We conduct detailed design and feasibility studies for every client, ensuring each bespoke solution meets their specific needs and expectations.
Customer-Centric
At Spectrum, every client’s journey matters. We take a comprehensive approach, providing a seamless, end-to-end solution for all our installations.
Case Studies
See how we’ve helped businesses and homeowners reduce their energy costs.
7.56kWp Solar PV & Battery System Installation
Project Overview Seeking greater energy self-sufficiency and lower electricity bills, the client approached Spectrum Energy Systems for a Solar PV and Battery Storage solution for their home in Worksop. After a detailed consultation and system design, they opted for a 7.56kWp solar PV system combined with a 9.5kWh GivEnergy battery,
39.5kWp Solar PV Installation in Sheffield
Project Overview Spectrum Energy Systems is proud to present this successful solar PV installation for a premium residential property in Sheffield. The client, was undertaking significant renovations and sought to integrate a high-performance solar energy system to support his home’s substantial electricity needs. Given the property’s high consumption—powered by an
Frequently asked questions
How do solar panels work and how much energy do solar panels produce? and do solar panels work in winter?
Solar panels work by converting sunlight into electricity using photovoltaic (PV) cells. When sunlight hits the panels, it excites electrons in the silicon cells, generating direct current (DC) electricity. An inverter then converts DC into alternating current (AC), which powers homes and businesses.
The energy output of solar panels depends on factors like sunlight exposure, panel efficiency, and location. On average, a residential solar panel produces 250–400 watts per hour under ideal conditions. A typical home system generates 5–10 kilowatts per day, significantly reducing reliance on the grid and lowering electricity bills while promoting renewable energy use.
Yes, Solar panels work in winter, though their efficiency may be lower. Solar panels generate electricity from sunlight, not heat, so they still function in cold weather. In fact, solar panels often perform better in cooler temperatures because excessive heat can reduce efficiency. However, shorter daylight hours and snow coverage can reduce energy production. Snow usually melts off panels quickly due to their dark surface and tilt.
How long do solar panels last and are solar panels worth the cost?
Solar panels typically last 25–30 years, with most manufacturers offering warranties of 20–25 years. Whilst their efficiency gradually decreases over time, they can still produce electricity beyond their warranty period. The long lifespan makes solar panels a worthwhile investment.
The cost-effectiveness depends on factors like installation costs, energy savings, and available incentives. Whilst the initial investment can be high, solar panels can significantly reduce electricity bills, often paying for themselves within 5–10 years. Government incentives, net metering, and increased home value further enhance their worth, making them a smart choice for long-term energy savings and sustainability.
How many solar panels do I need?
The number of solar panels you need depends on your energy consumption, panel efficiency, and available sunlight in your location. To estimate:
- Determine your electricity usage– Check your utility bill for your monthly kWh consumption. The average UK home can consume up to 6000kWh per year. With more consumption weighted to the winter months
- Calculate daily energy needs– Divide your annual consumption by 12 .
- Estimate panel output– A typical solar panel produces 300–400 watts per hour. Multiply this by peak sunlight hours (e.g., 4–6 hours per day).
- Divide energy needs by panel output– For a 6 kW system, you’d need around 15–20 panels.
A solar installer like Spectrum can provide a precise calculation based on your location and energy needs.
What is a solar battery? Is a solar battery the same as an inverter battery?
A solar battery is a device that stores excess electricity generated by solar panels for later use, especially at night or during power outages. It allows homeowners to maximize solar energy usage and reduce reliance on the grid. Common types include lithium-ion and lead-acid batteries.
A solar battery is not the same as an inverter battery, though they serve similar functions. An inverter battery is typically used in traditional power backup systems, storing electricity from the grid or a generator. In contrast, a solar battery is designed specifically to store solar energy, often integrated with a solar power system for efficiency and sustainability.
Is a solar battery worth installing in the UK?
A solar battery can be well worth installing in the UK, but its value depends on factors like electricity costs, solar generation, and available incentives. Since the UK has higher electricity prices and frequent cloudy days, storing excess solar energy for use during peak hours or at night can greatly increase savings.
However, solar batteries can have high upfront costs (£2,000–£8,000), and payback periods can be long. If your consumption is low and you have a smart export guarantee (SEG) tariff set up, selling excess energy to the grid might be more cost-effective.
A battery is most beneficial if you use a lot of energy both in the day and through the evening.
Why have a battery with solar panels?
- Use stored energy at night– Reduce reliance on grid electricity.
- Save on energy bills– Maximize self-consumption and avoid peak-time rates.
- Ensure backup power– Keep essential appliances running during power cuts.
- Increase energy independence– Reduce dependence on utility companies.
How does an off-grid solar system work?
- Solar Panels– Capture sunlight and convert it into electricity.
- Charge Controller– Regulates the power flow to prevent battery overcharging.
- Battery Storage– Stores excess energy for use at night or during cloudy days.
- Inverter– Converts stored DC (direct current) electricity into AC (alternating current) for home appliances.
How to calculate an off-grid solar system?
To calculate an off-grid solar system, first determine your daily energy usage (kWh/day) from electricity bills. Divide this by peak sunlight hours to find the required solar panel wattage.
For example, if you use 20 kWh/day and get 4 sunlight hours, you need a 5 kW system (5,000W). Divide by panel wattage (e.g., 400W) to get 13 panels. Next, size your battery storage by multiplying daily usage by backup days and converting to amp-hours.
Choose an inverter matching peak power demand and a charge controller based on system voltage. Proper sizing ensures reliable off-grid power year-round.
What is EV charging?
- Level 1– Uses a standard 120V household outlet (slow charging).
- Level 2– Uses a 240V outlet, offering faster charging.
- DC Fast Charging– Delivers high-speed charging, typically found at public stations, allowing an EV to charge quickly.
What is solar PV? How do solar PV panels generate electricity?
- Absorption of Sunlight: Solar panels are made up of multiple photovoltaic (PV) cells. These cells absorb sunlight and use its energy to generate electricity.
- Excitation of Electrons: When sunlight hits the semiconductor material in the PV cells, it excites the electrons, causing them to break free from their atoms.
- Electric Field Creation: The PV cells are designed with an electric field that directs these free electrons in a specific direction. This movement of electrons creates an electric current.
- Flow of Electricity: The electric current flows through conductors and is collected as direct current (DC) electricity.
- Conversion to Alternating Current (AC): Since most homes and businesses use alternating current (AC), the DC electricity generated by the panels is then converted into AC electricity using an inverter.
- Usage or Storage: The AC electricity can then be used to power electrical devices, or it can be stored in batteries for later use.
Which PV solar panels are best?
The best PV solar panels depend on factors like efficiency, cost, and warranties. Top brands include Aiko, known for high efficiency (up to 22.8%), a 25-year warranty and individual cell optimisation; JA Solar, offering strong performance and sleek design; REC Solar, praised for durability and efficiency; and Canadian Solar, which provides affordable options with good performance.
Consider factors like efficiency, temperature performance, cost, and warranty when selecting panels. Always consult local installers like Spectrum for tailored recommendations based on your specific energy needs and location.
Have more questions? We’re here to help! At Spectrum Energy Systems, we’re committed to guiding you toward a sustainable energy future. Whether solar panels, battery storage, or off-grid solutions, our experts are ready to provide answers and tailored advice.
A recent In-roof solar panel Installation
Blogs
7.56kWp Solar PV & Battery System Installation
Project Overview Seeking greater energy self-sufficiency and lower electricity bills, the client approached Spectrum Energy Systems for a Solar PV and Battery Storage solution for their home in Worksop. After a detailed consultation and system design, they opted for a 7.56kWp solar PV system combined with a 9.5kWh GivEnergy battery,
39.5kWp Solar PV Installation in Sheffield
Project Overview Spectrum Energy Systems is proud to present this successful solar PV installation for a premium residential property in Sheffield. The client, was undertaking significant renovations and sought to integrate a high-performance solar energy system to support his home’s substantial electricity needs. Given the property’s high consumption—powered by an
Grid-Tied vs. Off-Grid Solar Systems: Which is Right for You?
As more businesses and homeowners turn to solar energy, understanding the different types of solar systems is essential. There are two main types: grid-tied and off-grid solar systems. Each has its advantages and drawbacks, making it important to choose the right one based on your energy needs, location, and budget.
Our Recent On-Roof Solar Installations
Blogs
Grid-Tied vs. Off-Grid Solar Systems: Which is Right for You?
As more businesses and homeowners turn to solar energy, understanding
The Role of Battery Storage in Enhancing Solar PV Efficiency
As businesses seek sustainable energy solutions, commercial solar panels have
Top 10 Benefits of Installing Solar Panels for Your Home or Business
In recent years, solar panels have become a popular choice
