--- title: "Riello UPS — Solar Case Study | Alliant Energy" description: "Riello UPS (Data & Power Systems): 60.35kWp solar array, 137 panels — £16,457/yr saved, 3.6 Years payback. Full project breakdown by Alliant Energy." lang: en json-ld: | [ { "@context": "https://schema.org", "@graph": [ { "@type": [ "Organization", "LocalBusiness", "ProfessionalService" ], "@id": "https://alliantenergy.co.uk/#organization", "name": "Alliant Energy Ltd", "alternateName": "Alliant Energy", "legalName": "Alliant Energy Ltd", "url": "https://alliantenergy.co.uk", "logo": { "@type": "ImageObject", "url": "https://alliantenergy.co.uk/logo.png", "width": 320, "height": 80 }, "image": "https://alliantenergy.co.uk/og-default.jpg", "description": "MCS-registered renewable energy specialists installing solar PV, battery storage, EV charging and air source heat pumps for UK homes and businesses across the North West. ISO 9001, 14001 and 45001 certified. 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Full project breakdown by Alliant Energy.", "image": "/__l5e/assets-v1/b942413d-625e-4816-8395-7393916bb081/riello-ups.jpg", "author": { "@type": "Organization", "name": "Alliant Energy" }, "publisher": { "@type": "Organization", "name": "Alliant Energy", "url": "https://alliantenergy.co.uk", "logo": { "@type": "ImageObject", "url": "https://alliantenergy.co.uk/favicon.ico" } }, "datePublished": "2026-01-15", "dateModified": "2026-05-19", "mainEntityOfPage": "https://alliantenergy.co.uk/case-study/riello-ups", "about": "Data & Power Systems" }, { "@context": "https://schema.org", "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "How big is the solar system installed at Riello UPS?", "acceptedAnswer": { "@type": "Answer", "text": "Alliant Energy installed a 60.35kWp solar PV system using 137 panels paired with a Solis inverter. The installation took 2 weeks from arrival on site to commissioning." } }, { "@type": "Question", "name": "How much does Riello UPS save each year?", "acceptedAnswer": { "@type": "Answer", "text": "Riello UPS saves approximately £16,457 per year on electricity, with projected lifetime savings of £277,760 over the system's 25-year guaranteed performance period. The payback term is 3.6 Years, delivering a total ROI of 694%." } }, { "@type": "Question", "name": "Was the project funded or paid for upfront?", "acceptedAnswer": { "@type": "Answer", "text": "This project was paid for directly by the customer. Under the UK's full-expensing capital allowance, the entire cost can be deducted from corporation tax in year one — improving the effective payback meaningfully for profitable companies." } }, { "@type": "Question", "name": "What's the environmental impact?", "acceptedAnswer": { "@type": "Answer", "text": "The system avoids around 10.3 Tonnes of CO₂ emissions every year compared with grid-sourced electricity. Over a 25-year design life that's a material contribution toward Scope 2 reduction and any ESG or net-zero reporting commitments the business holds." } }, { "@type": "Question", "name": "Could a similar system work for my business?", "acceptedAnswer": { "@type": "Answer", "text": "Probably — the same hardware platform (panels, hybrid inverter, optional battery) scales from roughly 10kW up to 1MW+. The deciding factors are roof area, daytime electricity use, current unit rate, and grid-connection capacity. Alliant Energy carries out a free desktop feasibility study and follow-up site survey before quoting." } } ] } ] --- [![Alliant Energy — Renewable Energy Solutions](/__l5e/assets-v1/3bd22195-cc6e-43e6-b5ff-5a808ce292d3/alliantenergyltd-2.svg)](/) [Home](/)[About](/about-us) [Services](/services) [Guides](/guides)[Case Studies](/case-study)[![Levelise](/__l5e/assets-v1/59fd362e-361a-47d7-ad1f-65e9beeb5289/levelise-logo.webp)](/guides/levelise-hub-explained) [01282 501589](tel:01282501589)[Get a Quote →](/quote) ![Riello UPS solar installation](/__l5e/assets-v1/b942413d-625e-4816-8395-7393916bb081/riello-ups.jpg) [All case studies](/case-study) Data & Power Systems # Riello UPS 60.35kWp system saving £16,457 a year for Riello UPS. [ Previous Piolax ](/case-study/piolax)[ Next Sandal Wakefield BMW ](/case-study/sandal-wakefield-bmw) ## Project overview The new installation will bring their level of self-sufficiency up a further 31% with annual savings over £15,000 and an additional carbon reduction of 10,310 kg CO2. .e-loop-item-13340 .elementor-element.elementor-element-166d83a:not(.elementor-motion-effects-element-type-background),.e-loop-item-13340 .elementor-element.elementor-element-166d83a>.elementor-motion-effects-container>.elementor-motion-effects-layer{background-image:url("https://alliantenergy.co.uk/wp-content/uploads/2026/02/Bowland-Pennine-Mountain-Rescue-Solar-11.jpg")}.e-loop-item-13340 .elementor-element.elementor-element-166d83a:hover{background-image:url("https://alliantenergy.co.uk/wp-content/uploads/2026/02/Bowland-Pennine-Mountain-Rescue-Solar-11.jpg")} ### The challenge Like most data & power systems operations, Riello UPS faced a structural exposure to wholesale electricity prices — a cost line that doubled for many UK businesses between 2021 and 2023 and shows no sign of returning to pre-crisis levels. With significant daytime load and suitable roof space, on-site generation was the obvious lever, but the project needed to stand on its own commercial merits: predictable payback, manufacturer-backed warranties, and zero operational disruption during install. ### The solution Alliant Energy designed Following a structural roof survey and DNO capacity check, Alliant Energy specified a 60.35kWp array using 137 high-efficiency mono-PERC panels, paired with a Solis hybrid inverter. The Solis platform was chosen for its export-management capability and remote firmware updates, allowing the array to be tuned over its life without site visits. Surplus generation is exported to the grid under a Smart Export Guarantee tariff, providing a secondary revenue stream alongside the primary saving on imported electricity. ### Install & commissioning The full installation completed in 2 weeks, scheduled around the customer's operating hours to avoid downtime. Work was carried out by Alliant Energy's directly employed MCS-registered engineers — no subcontracted labour. The system was commissioned to G99 requirements, registered with the Microgeneration Certification Scheme, and handed over with monitoring access, electrical certification, and structural sign-off documents on the day of completion. ### Financial outcome In its first full year of operation the system is on track to save Riello UPS approximately **£16,457** on electricity costs, with a payback term of **3.6 Years** and a projected total ROI of **694%**. Over the 25-year warranted life of the panels, the cumulative saving is forecast at **£277,760** — a figure that improves materially if grid prices continue their long-term upward trend, and that benefits from the UK's 100% full-expensing capital allowance for qualifying solar assets. ### Environmental impact The installation displaces roughly **10.3 Tonnes** of CO₂ emissions every year compared with grid-sourced electricity. Over the system's 25-year design life that is the equivalent of removing more than Riello UPS's entire annual Scope 2 footprint several times over — a material data point for ESG, B-Corp and net-zero reporting frameworks. ### Why it matters for the data & power systems sector Data & Power Systems businesses typically run daytime electrical loads — refrigeration, machinery, IT, lighting, compressors — that overlap closely with solar generation. That overlap is what drives strong economics: every unit generated and consumed on-site replaces a unit that would otherwise be bought from the grid at full commercial rates. The Riello UPS project demonstrates how the model scales for this kind of operation. System 60.35kWp Panels 137 Inverter Solis Install 2 Weeks ### Project FAQ ### How big is the solar system installed at Riello UPS? Alliant Energy installed a 60.35kWp solar PV system using 137 panels paired with a Solis inverter. The installation took 2 weeks from arrival on site to commissioning. ### How much does Riello UPS save each year? Riello UPS saves approximately £16,457 per year on electricity, with projected lifetime savings of £277,760 over the system's 25-year guaranteed performance period. The payback term is 3.6 Years, delivering a total ROI of 694%. ### Was the project funded or paid for upfront? This project was paid for directly by the customer. Under the UK's full-expensing capital allowance, the entire cost can be deducted from corporation tax in year one — improving the effective payback meaningfully for profitable companies. ### What's the environmental impact? The system avoids around 10.3 Tonnes of CO₂ emissions every year compared with grid-sourced electricity. Over a 25-year design life that's a material contribution toward Scope 2 reduction and any ESG or net-zero reporting commitments the business holds. ### Could a similar system work for my business? Probably — the same hardware platform (panels, hybrid inverter, optional battery) scales from roughly 10kW up to 1MW+. The deciding factors are roof area, daytime electricity use, current unit rate, and grid-connection capacity. Alliant Energy carries out a free desktop feasibility study and follow-up site survey before quoting. ### Financial impact Rate of ROI 27.8% Total ROI 694% Annual savings £16,457 Lifetime savings £277,760 Payback term 3.6 Years Annual CO₂ saved 10.3 Tonnes [Commercial Savings Calculator →](/calculator) ### More projects [ Frozen Dessert Distribution Tropical Ices £13,700/yr · 5 Years payback ](/case-study/tropical-ices)[ Pewter & Silverware Manufacturing Pinder Brothers £3,700/yr · 5 Years payback ](/case-study/pinder-brothers)[ Logistics & Haulage Shepherd Distribution £22,389/yr · 2.9 Years payback ](/case-study/shepherd-distribution)[ Retail Technology Datascan Retail Systems £3,457/yr · 5.9 Years payback ](/case-study/datascan-retail-systems) Three ways to get started ## Ready to find out what solar saves you? Get a tailored quote in one working day. No obligation. No hard sell. Speak to a renewable energy engineer — not a salesperson — at a time that suits you. [Get a Quote → ](/quote) [Request a Callback →](/request-callback) [Download Brochure →](/brochure) Accreditations ## Certified, registered, and insured. Every time. MCS certification isn't a box-ticking exercise — it qualifies your system for Smart Export Guarantee payments and government grants. Our installers are also NICEIC-approved and TrustMark-registered, and every install is fully insured. ![Citation ISO Certification: ISO 9001 quality management, ISO 14001 environmental management and ISO 45001 occupational health and safety](/__l5e/assets-v1/180183cd-e6fd-4b0a-984c-83e6a41390d7/accreditations-iso.jpg) ![Alliant Energy — Renewable Energy Solutions](/assets/logo-IFrgP5Dc.png) Renewable energy & energy-saving specialists. MCS-registered solar PV, battery storage, heat pumps and EV charging across the UK. #### Quick Links - [Home](/) - [About Us](/about-us) - [Services](/services) - [Case Studies](/case-study) - [Areas We Cover](/solar-panel-quotes-north-west) - [Contact](/contact) - [Privacy Policy](/privacy) - [Terms & Conditions](/terms) #### Services - [Solar for Homes](/services/solar) - [Commercial Solar](/services/commercial-solar) - [Battery Storage](/services/battery-storage) - [Air Source Heat Pumps](/services/heat-pumps) - [EV Charging](/services/ev-charging) - [Energy Saving Advice](/services/energy-saving-advice) #### Contact - [01282 501589](tel:01282501589) - [info@alliantenergy.co.uk](mailto:info@alliantenergy.co.uk) - Unit 214 Northlight Industries, Pendle Road, Brierfield, Nelson BB9 5FL [Get a Quote](/quote)[Brochure](/brochure) Alliant Energy Ltd is an Introducer Appointed Representative (Financial Services Register No. 1020779) of Phoenix Financial Consultants Limited (Phoenix). 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