2,400+ Definitions
HVAC GLOSSARY
Every HVAC term, acronym, and industry phrase — defined in plain English.
Solar Commissioning
Solar commissioning is the final verification process that confirms a…
Solar Concentrator
A solar concentrator is any optical system using mirrors, lenses,…
Solar Conduit
Solar conduit is protective tubing that houses and shields electrical…
Solar Cooling
Solar cooling uses thermal energy from the sun to power…
Solar Curtailment
Solar curtailment is the intentional reduction or shutdown of photovoltaic…
Solar DC Air Conditioner
A solar DC air conditioner operates directly on direct current…
Solar Disconnect
A solar disconnect is a switch that safely isolates photovoltaic…
Solar Domestic Hot Water
Solar domestic hot water (SDHW) systems use solar thermal collectors…
Solar Energy Dashboard
A solar energy dashboard is a user-friendly web or mobile…
Solar Energy Forecasting
Solar energy forecasting predicts the amount of solar power that…
Solar Energy Storage HVAC
Solar Energy Storage HVAC combines solar power generation, battery storage…
Solar Energy System
A solar energy system is a complete installation of photovoltaic…
Solar Farm
A solar farm is a large-scale photovoltaic installation designed to…
Solar Financing
Solar financing refers to the various methods homeowners and businesses…
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…