INTEGRATED SOLAR APPLICATIONS CORPORATION

Name

INTEGRATED SOLAR APPLICATIONS CORPORATION

Legal name

Integrated Solar Applications Corp.

Website

https://isasolar.com

Company type

Private

Founded year

1975

Operating status

Operating

Headcount range

1–10 employees

Ownership category

akta.pro rank

Product category

Solar Installation Services

NAICS

Solar Electric Power Generation (221114)

SIC

Electric Services (4911), Cogeneration Services & Small Power Producers (4991)

akta.pro primary industry

Solar EPC & Construction (Utility-Scale, Rooftop, Balance of System) (EUAMABAB)

akta.pro secondary industry

Solar PV Power Plant EPC (Utility-Scale) (EUAEAAAG)

Keywords

• Solar pv installation
• Geothermal heating systems
• Heat pump installation
• Battery energy storage
• Community solar programs

Headquarters

HQ city

BRATTLEBORO, Vermont

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Services

Cost components

Personnel, Operations, Marketing or Sales, Supply Chain

Revenue model

1. Solar PV Installation: Design, installation, and servicing of solar photovoltaic systems for residential and commercial customers. Revenue generated from system installation fees and equipment sales.
2. Heat Pump Installation: Installation of cold climate heat pumps, geothermal systems, and heat pump water heaters for heating and cooling applications.
3. Battery Storage Installation: Installation of battery energy storage systems for residential and commercial applications, providing backup power and energy management.
4. Community Solar Program: Community solar projects where customers purchase Energy Credit Shares ($1,591 per 430-watt panel). ISA manages the project and customers receive energy credits on their utility bill. License agreement extends for 25 years.
5. Power Purchase Agreements: Third-party financing arrangements where investors use tax benefits (Federal and State Tax Credits and depreciation) and customers achieve monthly energy cost savings with no upfront cost.

Pricing tiers

Go-to-market motion2 records

Distribution channels4 records

Marketing channels6 records

Core offering

Integrated Solar Applications Corporation (ISA) designs, installs, and services renewable energy systems—including solar PV, geothermal, heat pumps, battery energy storage, and integrated net-zero systems—for residential, commercial, municipal, and school customers in Vermont and New Hampshire. The company also operates community solar programs where customers purchase shares in larger solar arrays and receive energy credits on their utility bills under 25-year license agreements. ISA handles the entire process from site evaluation and design through permitting, installation, and ongoing servicing.

Product overview

Integrated Solar Applications Corp. is a renewable energy installation company offering a portfolio of interconnected clean energy products. Its core offerings include Solar PV (photovoltaic electricity generation), Geothermal systems (ground-source heating and cooling), Heat Pumps (cold climate heat pump systems), Batteries/Energy Storage, and Integrated Net Zero Systems that combine two or more technologies to fully offset energy consumption. The company also operates Community Solar programs allowing shared solar ownership with utility bill credits. Commercial offerings are segmented by customer type — Small Business (under 50,000 kWh/year), Large Business (50,000+ kWh/year), Municipalities, and Schools — each with tailored solar and integrated system solutions. Products are designed, installed, and serviced by ISA's own team; the company does not sell retail but operates as a full-service installer.

Differentiator

Problem solved

Functional benefit

Products and services

• Solar PV (Photovoltaic) Systems Solar photovoltaic technology converts sunlight into electricity using silicon-based modules. Panels can be mounted on roofs, building sides, or ground racks, connected to the grid via net metering to sell power back to the utility. Designed for residential and commercial customers seeking to reduce electricity costs and environmental footprint.
• Geothermal Systems Geothermal (GeoExchange) systems transfer heat between the ground/water and buildings, providing both heating in winter and cooling in summer by reversing a valve. Reduces energy consumption by over 40% compared to air source heat pumps and over 70% compared to electric resistance heating. Targeted at residential and commercial customers seeking efficient heating and cooling.
• Heat Pump Systems Cold climate heat pumps (mini-splits) transfer heat from outdoors to indoors using compressor-based refrigerant technology for both heating and cooling. Rated at 250% efficiency versus conventional heat at 100%, saving up to 30% in energy costs. Targeted at residential and commercial customers in cold climates seeking efficient heating and cooling alternatives.
• Battery Energy Storage Systems Battery energy storage systems (lead acid and lithium, including LiON and LiFePO chemistries) store solar or grid energy for backup power, self-consumption, and demand charge management. Integrated with SMA Sunny Island inverters, SolArk inverters, and Sonnen batteries. Targeted at residential and commercial customers seeking energy resilience and backup power.
• Integrated Net Zero Systems Combined PV, geothermal, heat pump, and battery storage systems designed to achieve net-zero energy usage, where on-site renewable generation fully offsets consumption and systems have no operating energy cost. Targeted at homeowners and businesses seeking full energy independence.
• Community Solar Program Shared solar installations allowing homeowners and businesses without suitable sites (due to shading, roof issues, orientation, aesthetics, or rental status) to benefit from solar energy without on-site installation. Customers purchase Energy Credit Shares in larger arrays and receive energy credits on their utility bills under a 25-year license agreement, with an 8.8% rate of return and 11-year payback.
• Commercial Solar Systems Solar PV and integrated energy solutions for commercial customers, segmented by size and customer type: small businesses (under 50,000 kWh/year, 1kW to 49kW systems), large businesses (50,000+ kWh/year, 50kW to 2.5 MW systems), municipalities (supported through the MERP program), and schools (often via Power Purchase Agreements for no upfront cost). Systems use Hanwha, REC, Q.Cell, SILFAB, Upsolar, SolarWorld panels with Fronius and SolarEdge inverters.

Quantifiable outcome

• 8.8% rate of return on investment with 11-year payback period for average Vermont home community solar system
• +3 more outcomes

Named customers13 records

Segments6 records

Ideal customer profiles5 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

Three partnerships are on record, tiered minor, core and strategic.

• CCB CorporationminorStrategic or Co-development Partner · 1 January 2022Company solely owned by Andrew Cay (ISA owner) that holds the Balance of System ownership (racking, wiring, inverters, interconnection) for the ISA Exit 1 Solar community solar project. Management and operating expense responsibility remains with ISA.
• Efficiency VermontcoreStrategic or Co-development PartnerISA is an Efficiency Vermont certified member authorized to offer the Heat Saver Loan program. Processes point-of-sale rebates for customers including $500 per heat pump unit, $375-$475 for heat pumps, and $200-$2,200 for low-to-moderate income customers.
• Green Mountain Power CorporationstrategicTechnology or IntegrationUtility company providing net metering credits to ISA's community solar customers within their service territory. Community solar projects are built within GMP's territory and customers receive energy credits directly on their GMP monthly utility bills.

Scale indicators5 records

Recent moves5 records

Expansion highlights5 records

Broad incumbents

• Sunrun: National residential solar lease and PPA provider offering solar plus battery storage subscriptions; competes with ISA in the residential solar market with a much larger balance sheet and national footprint.
• Tesla Energy: National solar and Powerwall battery installer competing across residential and commercial markets; overlaps with ISA's PV and battery storage offerings but operates at vastly greater scale.

Direct peers

• AllEarth Renewables: Vermont-based manufacturer and installer of dual-axis solar trackers used in residential, commercial, and community solar projects; ISA has deployed AllSun trackers on multiple jobs, making it both a supplier and a peer in the Vermont solar market.
• Peck Electric Company: Long-standing Vermont electrical contractor with a renewable energy division doing solar PV, battery storage, and EV charger installations; comparable in regional focus and integrated electrical/solar service model.
• ReVision Energy: Maine- and New Hampshire-headquartered solar, heat pump, and battery installer serving northern New England; comparable integrated renewable energy offering and shared New England geography make it a direct regional peer.
• SunCommon: Vermont-headquartered solar and heat pump installer offering residential and commercial solar, battery storage, EV charging, and community solar subscription programs directly comparable to ISA's product mix and regional New England focus.
• Green Mountain Solar: Vermont-based residential and small commercial solar PV installer with battery and heat pump offerings; competes head-to-head with ISA for southern Vermont projects and shares the same Efficiency Vermont certified contractor ecosystem.
• Solar Revolution: Small Vermont-based solar installer offering residential and commercial PV with battery storage; serves the same southern Vermont customer base and competes on community solar and net-metered projects.

Regional players

• Geotherm Inc. Geothermal and ground-source heat pump installer; directly comparable on ISA's GeoExchange offering and partially overlaps on integrated HVAC-plus-renewables system design.

Others

• Efficiency Vermont: Vermont's statewide energy efficiency utility administering Heat Saver Loans and rebates that flow through ISA; functions as a key channel partner and program gatekeeper rather than a direct competitor.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xtwitter.com/ISA_Solar
• Facebookfacebook.com/INTEGRATEDSOLAR
• LinkedInlinkedin.com/company/integrated-solar-applications-corporation

Revenue estimate

Valuation estimate

Number of profiles

Profiles3 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about INTEGRATED SOLAR APPLICATIONS CORPORATION