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W= hile each individual building has a unique capital improvement plan and tim= eline, retrofit projects or decarbonization interventions may be organized = and grouped by similarity over the coming thirty years. Below is the overar= ching hierarchy for decarbonization intervention points according to indust= ry best practices.
Delay replacement of gas-fired equipment with new gas-fired equipment as= long as possible. Rebuild and maintain existing equipment until replacemen= t.
Replace all remaining non-LED lighting and include lighting controls at = the time of retrofit.
Seal rooftop bulkhead doors and windows.
Add smoke-activated fire dampers or annealed glass to the elevator shaft= vent grill in the elevator machine room.
Install algorithmic controls on top of the existing boiler control syste= m.
Balance steam distribution systems:
Implement Radiator Efficiency and Controls Measures:
Balance air supply and ventilation systems using proper air registers, l= ouvers, dampers, and technology like Constant Airflow Regulator (CAR) dampe= rs:
Increase efficiency of pumps and motors:
Implement algorithmic controls on top of existing Building Management Sy= stems (BMS) in commercial office buildings.
Hybrid Domestic Hot Water (DHW) Plants: Add DHW heat pump equipment to a= n existing gas-fired DHW plant
Install Energy Recovery Ventilation (ERV) system.
Install rooftop solar.
Procure New York State-sourced renewable power.
Procure biomethane from utility via pilot program.
Procure renewable hydrogen blend from utility via pilot program.
Develop innovative means of participating in gas demand response:
Add central-control compatible thermostats to apartments and office suit= es to control decentralized heating and cooling systems (heating, cooling)<= /p>
Fully electrify DHW systems:
Overland/insulate masonry facades with high ongoing Local Law 11 cost.= p>
Eliminate uninsulated radiator cabinets/niches (in exterior walls)=
Begin routine window replacement plan with high-performance windows.
Support cogen systems with biomethane (injection) procurement.
Explore hydrogen (injection) procurement to support cogen and centralize= d heating plants.
Develop on-site battery storage systems to manage building load profiles= and reduce peak usage
Increase thermal mass/thermal inertia and expand thermal storage capacit= y using Phase Change Material (PCM) products. Products currently include: c= eiling tiles, wall panels, AHU inserts, thermal storage tank inserts:
Implement centralized or in-building distributed thermal storage systems= to shift thermal loads to off-peak periods
Convert low-temperature heating distribution systems to shared loop syst= ems or geothermal systems; building distribution is already optimized for l= ow-temperature distribution: water source heat pumps, large surface area te= rminal units (radiant panels, underfloor heat, fan coils, etc.)
Where necessary, convert high-temperature heating distribution systems t= o low-temperature distribution systems; systems converted from fin tube to = radiant panels, fan coils, or water source heat pumps as feasible.
Embrace consumer products that reduce building loads and peak demand:
Install HVAC Load Reduction Technology:
Electric Distribution Upgrade Needed:
Install multi-function glass during window or facade replacement:<= /p>
Install highly insulated panels at spandrels:
Replace cooling towers with advanced heat rejection technology:
Interconnect with 100% hydrogen distribution network
Pair advanced, on-site battery storage systems with hydrogen fuel cells<= /p>