2,400+ Definitions
HVAC GLOSSARY
Every HVAC term, acronym, and industry phrase — defined in plain English.
Solar Fraction
Solar fraction is the percentage of a building’s total heating…
Solar Garden
A solar garden is a community-scale solar installation, smaller than…
Solar Heat Exchanger
A solar heat exchanger is a device that transfers thermal…
Solar Heat Gain Coefficient
Solar Heat Gain Coefficient (SHGC) measures the fraction of solar…
Solar Heat Pump
A solar heat pump combines solar thermal collectors with electrical…
Solar Hot Water System
A solar hot water system uses solar thermal collectors to…
Solar HVAC System
A solar HVAC system combines solar energy generation with heating,…
Solar Incentive
Solar incentives are financial benefits offered by governments, utilities, and…
Solar Insolation
Solar insolation measures the total solar energy received on a…
Solar Inspection
A solar inspection is an official examination by a licensed…
Solar Interconnection
Solar interconnection is the technical and procedural process of connecting…
Solar Inverter
A solar inverter converts direct current (DC) electricity produced by…
Solar IRR
Solar IRR (Internal Rate of Return) is the discount rate…
Solar Irradiance
Solar irradiance is the measurement of solar power intensity striking…
Solar ITC
Solar ITC refers specifically to the Investment Tax Credit applied…
Solar Junction Box
A solar junction box is an enclosure mounted on photovoltaic…
Solar Lease
A solar lease is a financing arrangement where a property…
Solar Load Shifting
Solar load shifting is the practice of timing household electricity…
Solar Loan
A solar loan is a financing product that allows property…
Solar MC4 Connector
The Solar MC4 connector is a weatherproof, single-contact electrical connector…
Solar Module
A solar module is a complete photovoltaic unit consisting of…
Solar Monitoring System
A solar monitoring system continuously tracks and records real-time performance…
Solar NPV
Solar NPV (Net Present Value) is a financial metric calculating…
Solar Panel
A solar panel is a device that converts sunlight directly…
Solar Panel Degradation
Solar panel degradation refers to the gradual decline in photovoltaic…
Solar Panel Efficiency
Solar panel efficiency is the percentage of sunlight that a…
Solar Panel NOCT
Nominal Operating Cell Temperature (NOCT) measures how hot a solar…
Solar Panel STC
Standard Test Conditions (STC) represent the standardized laboratory environment used…
Solar Panel Warranty
Solar panel warranties are manufacturer guarantees covering defects, materials, and…
Solar Panel Wattage
Solar panel wattage, or rated power capacity, measures the maximum…
Solar Parallel Connection
Solar parallel connection links photovoltaic modules positive-to-positive and negative-to-negative, increasing…
Solar Payback Period
The solar payback period is the time required for cumulative…
Solar Permit
A solar permit is the official authorization issued by local…
Solar Plus Storage
Solar Plus Storage combines rooftop solar panels with battery storage…
Solar Pool Collector
A solar pool collector is the primary component of a…
Solar Pool Heater
A solar pool heater is a system that uses solar…
Solar PPA
A Solar Power Purchase Agreement (PPA) is a long-term contract…
Solar Production Data
Solar production data encompasses the measured electrical output and performance…
Solar Production Meter
A solar production meter measures the electrical output generated by…
Solar Property Value
Solar property value refers to the measurable increase in home…
Solar Racking
Solar racking refers to the structural mounting systems that securely…
Solar Radiant Heating
Solar radiant heating delivers warmth from solar thermal collectors through…
Solar Rapid Shutdown
Solar rapid shutdown is a safety system that de-energizes all…
Solar Ready Electrical Panel
A Solar Ready electrical panel is a service panel pre-configured…
Solar Ready Home
A Solar Ready home is a residence designed and constructed…
Solar Ready HVAC
Solar Ready HVAC refers to heating and cooling equipment designed…
Solar Rebate
A solar rebate is a direct cash payment offered by…
Solar Renewable Energy Certificate
A Solar Renewable Energy Certificate (SREC) is a tradable financial…