Endo Enterprises
FOCUS: Net Zero Energy & Carbon, Sustainable Infrastructure
OVERVIEW: Chemical hydronic additive that improves the heat transfer properties of water to reduce HVAC energy use by 15%.
BOur solutions looks to improve the energy efficiency of hydronic space heating systems and thus reduce the carbon emissions of gas/fuel that provides this energy to warm our buildings. In California, The CPUC estimates that approximately 24% of GHG emissions in the state come from buildings and roughly 25-35% of a buildings emissions come from space conditioning. This is thus a significant opportunity for improvement as part of a zero energy / zero carbon goal. Whilst many strategies look to electrify our heating; this is currently only moving the carbon emissions upstream and can be cost restrictive especially in pre-existing buildings (of which an estimated 80% will still remain in 2050). It is thus still a viable energy efficiency strategy to look to specifically target energy efficiency within natural gas and non-renewable heating systems.
In commercial HVAC systems.; water is used to distribute thermal loads from boiler / district or heat pumps around the building. There is an opportunity to improve the water’s heat transfer properties using an hydronic additive. The hydronic additive improves waters heat transfer properties to subsequently allow the HVAC system to be more dynamic and react quicker to changes in demand. This helps reduce initial system run times whilst reducing end of cycle wastage linked to increased embodied energy within the hydronic loop (thus temperature overshoots causing overheating). By reacting quicker to demand events, the system can maintain internal temperatures more accurately to thermostatic demand. Systems using hydronic additives show improved performance up to 15% with associated reductions in Scope 1 carbon emissions from the fuel source.
WEBSITE: EndoEnterprises
Endo Enterprises is Promising for California
CARB's Building Decarbonization Strategy — Existing Buildings Existing buildings provide a significant opportunity to reduce overall energy use, save money, improve air quality, and cut GHG emissions. Strategies to improve energy efficiency, maximize use of clean energy, optimize demand flexibility, and accelerate building electrification provide pathways to achieve California's near-term and long-term climate and air quality goals while saving money over time. EndoTherm is precisely this kind of low-cost, non-disruptive efficiency measure — installed in under a day with no system downtime, and delivering ROI within one year at California's gas rates (above $1.50/therm).
California Gas Emerging Technology Program — Already Engaged This is their strongest California credential. The application cites a two-site California pilot (a large educational institution and a blue-chip tech company) that showed 15.25% average energy savings — right in line with their claimed performance. The California Gas ETP specifically funds exactly this kind of incremental efficiency improvement for existing gas systems, giving EndoTherm a policy home within the state.
GSA Green Proving Ground — Federal Validation The GSA's Green Proving Ground program selected EndoTherm for pilots in federal courthouses, with results complete but not yet published at time of application. Federal courthouses are plentiful in California (Los Angeles, San Francisco, Sacramento, San Diego). A positive GSA result would carry enormous weight with California's public sector procurement — universities, hospitals, and state agencies.
The 2045 Electrification Gap — A Strategic Bridge Play The price to electrify existing structures in California is expected to be in the multiple hundreds of billions of dollars. Against that backdrop, a simple hydronic additive that cuts heating fuel consumption by 15% — with sub-$10K installation cost and under-one-year payback at California gas prices — is a compelling near-term measure that building owners can implement now while they plan longer-term electrification. It also reduces the peak demand a future heat pump system would need to handle, potentially right-sizing electrification projects.
Climate Zones 1–4 and Mountain Zones — Targeted Correctly The application correctly identifies California's colder coastal and mountain climate zones (1–4, 8–9) as the priority target. This is strategically sound: southern California's mild climate limits heating demand, but San Francisco, Sacramento, the Central Valley foothills, and mountain resort/ski communities have significant commercial heating loads where EndoTherm's value proposition is strongest. University campuses (UC Berkeley, UC Davis, UC Santa Barbara, Fresno State) and large hospital systems in these zones are ideal first targets.