The Lumen Effect

The following case studies represent the type and scale of results Lumen delivers across its service areas and geographies. Specific client names can be shared under NDA upon request.

Results-first. Every engagement is backed by measurable outcomes.

The following case studies reflect actual client engagements and measurable results. Client identities remain confidential and may be disclosed to qualified prospective clients under NDA.

CASE STUDIES

Spacious, empty industrial warehouse with steel beams, skylights, white walls, and loading equipment, conveying a clean, bright atmosphere.

Multi-Site Industrial Portfolio — Midwest, USA

CHALLENGE

A private equity-backed industrial operator managed 14 facilities across the Midwest but lacked visibility into facility-level energy consumption. As a result, energy costs reached approximately 12% of revenue, well above the industry benchmark. At the same time, the firm was preparing for a sale and wanted to improve EBITDA before going to market.

SOLUTION

Lumen conducted a portfolio-wide energy audit across all 14 sites within 60 days. Next, Lumen deployed LumenSmart™ monitoring at the six highest-consumption facilities. The team also addressed compressed-air inefficiencies at four sites through mechanical optimization.

In addition, Lumen completed LED conversions across all facilities. Finally, the team renegotiated electricity procurement, which reduced the portfolio’s blended energy rate.

RESULTS

  • 22% reduction in total energy consumption across the portfolio
  • $1.4M in annualized cost savings
  • EBITDA improved by $1.4M, supporting a significantly higher exit multiple
  • Carbon output reduced by an estimated 1,800 metric tons CO₂e annually
  • Project completed within 90 days of engagement
Low angle view of modern skyscrapers with a clear blue sky background.

Class A Office Tower — London, UK

CHALLENGE

A London commercial property owner faced rising energy costs at a 250,000-square-foot Class A office building. Over two years, utility costs increased 30% because of market pricing changes and aging building systems.

As a result, the building’s energy intensity began affecting its BREEAM rating and tenant retention conversations.

SOLUTION

Lumen UK conducted a full building energy audit and identified three primary opportunities: HVAC controls optimization, smart LED lighting upgrades, and energy supply renegotiation.

To establish a clear baseline, Lumen installed LumenSmart™ to provide real-time energy data and ongoing monitoring. The team then used that data to track performance and identify additional opportunities. 

RESULTS

  • 29% reduction in electricity consumption in the first year
  • £420,000 in annual cost savings
  • BREEAM energy rating improved from ‘Good’ to ‘Very Good’
  • LED conversion completed with 14-month payback
  • Tenant retention improved — energy performance cited in lease renewals
Spacious modern hotel atrium with sophisticated design and ambient lighting.

Hotel Portfolio — Eastern US

CHALLENGE

A hospitality operator managing eight full-service hotels faced energy costs that significantly exceeded its peer group as a percentage of revenue. Meanwhile, management had limited visibility into property-level consumption.

Without consistent data, the team struggled to benchmark performance and prioritize capital allocation across the portfolio.

SOLUTION

Lumen deployed LumenSmart™ across all eight properties to establish consumption baselines by department, including rooms, food and beverage, back-of-house, and common areas.

Next, Lumen recalibrated HVAC schedules property by property. The team also completed LED conversions in all high-use areas. Finally, Lumen renegotiated electricity contracts for the entire portfolio through a single procurement event.

RESULTS

  • Average 24% reduction in energy costs per property
  • $2.1M in total annualized savings across the portfolio
  • Energy cost as % of revenue reduced from 9.1% to 6.9%
  • Full portfolio deployment completed within 120 days
  • Ongoing LumenSmart™ monitoring maintains savings and flags new opportunities
Elegant suburban home with driveway at sunset showcasing modern architecture.

Multi-Family Residential Portfolio — Southeast US

CHALLENGE

A real estate investment trust managing 22 multi-family properties wanted to reduce common-area energy costs and improve NOI across its portfolio. However, individual property managers had limited tools for managing energy consumption and lacked visibility across sites.

As a result, management could not easily compare properties, identify underperforming assets, or prioritize energy investments.

SOLUTION

Lumen audited the 10 highest-cost properties and identified the most impactful opportunities. First, the team completed LED conversions across common areas, parking structures, and corridors.

In addition, Lumen installed LumenSmart™ monitoring in shared mechanical rooms. The team then applied HVAC optimization to buildings with centralized systems.

Based on the initial results, Lumen expanded the program across the remaining properties.

RESULTS

  • 34% reduction in common-area energy costs
  • $680,000 in annualized savings across the 10-property initial rollout
  • Expanded to all 22 properties in Phase 2 based on Phase 1 results
  • Total portfolio savings estimated at $1.5M annually on full deployment
  • NOI improved meaningfully across the portfolio; asset valuations increased

Explore real-world examples of how Lumen Global has helped businesses improve efficiency, reduce energy costs, and create measurable value.

Download Case Studies to See the Results

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