Level Lume is an ambient feedback device that makes electricity and gas consumption visible through light. No app required. Residents glance at a wall fixture that shifts from green to yellow to red as usage rises.
Start a pilot program →Real-time, always-visible feedback on energy consumption reduces household electricity use by 4–12% according to multiple peer-reviewed studies and utility pilot programs. [1][2] Level Lume applies this mechanism with hardware designed to make the feedback effortless and persistent.
The research on real-time energy feedback is extensive. These studies were originally conducted for electricity — the mechanism Level Lume is built on has been studied longer and more rigorously than almost any other behavioral conservation tool.
Meta-review of 61 studies across 9 countries. Real-time in-home feedback produced average electricity savings of 12%, outperforming enhanced billing (3.8%) and web-based audits (8.4%). [1]
Review for the Environmental Change Institute found in-home displays reduce electricity consumption by 5–12%, with savings persisting over time through changes in routine behavior. [2]
Dutch field experiment: real-time feedback reduced electricity by 2.2% and natural gas by 6.9%, with total energy reduced by 5.8%. Savings operated through increased cost salience. [3]
Randomized field experiment: real-time feedback produced average electricity reduction of 5.7%, with effects persisting across time periods. [4]
Systematic review finding that frequent, always-visible feedback produces the strongest conservation effects. Key factors: visibility, frequency, and appliance-level detail. [5]
PG&E's E-TOU-C rate plan charges 52¢/kWh during peak hours (4–9 PM) vs. 32¢/kWh off-peak in summer — a 63% premium. [6] Most residents have no idea when they cross into peak pricing. Level Lume makes it visible: the fixture shifts color as consumption and cost change throughout the day.
Level Lume fits into existing utility efficiency program structures. No meter replacement, no professional installation, no truck roll.
Deploy to 50–200 households. Measure electricity and gas reductions against a control group. Quantify the savings curve before scaling.
Subsidize the device cost through existing efficiency program budgets. Customer self-installs in 15 minutes. Minimal administrative overhead.
Purchase in bulk and distribute to high-consumption households. Target the top 20% of residential users where the efficiency opportunity is greatest.
For homes with solar panels, Level Lume can visualize net consumption vs. production. Residents see at a glance whether they're drawing from the grid or exporting. This helps solar households optimize self-consumption and understand their net metering position.
As NEM 3.0 reduces export compensation in California, self-consumption awareness becomes directly valuable — every kWh consumed during production hours is worth more than one exported to the grid.
Level Lume is developing an AI-powered energy coaching chatbot that will complement the ambient hardware feedback. While the fixture provides instant, passive awareness, the AI coach will provide deeper, personalized analysis when a resident wants to understand why their usage is high and what they can do about it.
The AI energy coach analyzes a household's consumption patterns and provides actionable recommendations through a conversational interface. It learns from the home's specific usage profile — not generic tips, but advice tailored to their appliances, schedule, rate plan, and seasonal patterns.
Identifies which hours, days, and appliances drive the highest consumption and cost.
Recommends when to run high-draw appliances to minimize peak-rate charges.
Flags unusual spikes and helps residents identify the cause before the bill arrives.
Proactive tips before heating and cooling seasons based on the home's historical patterns.
The AI energy coach is in development and will be available as an optional add-on for utility program deployments. Interested in early access? Get in touch.
Compatible with California smart meters. Optimized for TOU rate awareness.
Works with standard residential smart meter infrastructure. No meter modification required.
Direct P1 port integration for electricity, gas, and water. Launching in the Belgian market with DSMR 5.0 support.
SB 350 directs the CPUC to double energy efficiency savings in California. The CPUC has authorized $6.5 billion in energy efficiency programs since the law took effect. [8] Utilities need cost-effective tools to achieve these targets. A behavioral feedback device that produces measurable, persistent savings at scale is a practical addition to the efficiency portfolio.
For EU utilities, capacity tariffs and rising energy prices create similar demand for tools that help residential customers manage consumption without requiring active engagement.
50 households. 90 days. Measurable results. We'll help you design and deploy a pilot program tailored to your rate structure and service area.
Get in touch → See our water conservation page →