Compare the highest-rated home solar professionals in Koloa, Hawaii. All contractors are licensed, insured, and verified through our rigorous screening process.
A long-standing, locally-owned and operated company with over 40 years of experience, Haleakala Solar is a powerhouse in the Hawaii solar market. They are known for their exceptional quality, in-house engineering, and deep expertise in both grid-tied and critical off-grid battery systems, which is essential for Kauai's unique grid demands. They handle the entire process from design to permitting to installation.
RevoluSun is a highly reputable, employee-owned company with a strong presence across Hawaii. They are recognized for their professional service, high-quality equipment partnerships, and excellent customer service. They offer comprehensive services including financing options, energy efficiency assessments, and robust monitoring systems to ensure peak performance.
As a dedicated Kauai-based company, Kauai Solar offers highly personalized service and deep local expertise. They understand the specific nuances of the Kauai Island Utility Cooperative (KIUC) grid and interconnection process. They specialize in creating resilient solar-plus-storage systems tailored to the island's weather patterns and energy needs.
** The home solar market in Koloa, and on Kauai as a whole, is advanced and highly competitive, driven by the island's commitment to renewable energy and the high cost of electricity from fossil fuels. The average quality of installers is very high, as the technical requirements for interfacing with the Kauai Island Utility Cooperative (KIUC) grid and managing intermittent cloud cover are significant. **Competition** is strong among a handful of established local and state-wide companies. Due to KIUC's mandate for high levels of renewables, there is a major focus on **solar-plus-storage** systems. It is now rare to install a grid-tied system without a battery, as KIUC has limited capacity to accept exported energy during peak sun hours. **Typical Pricing** is higher than the national average due to shipping costs and the complexity of systems. A residential solar system with battery storage in Koloa can range from **$35,000 to $70,000+** before incentives. The federal investment tax credit (ITC), which currently stands at 30%, significantly reduces the net cost. All top-tier providers are exceptionally knowledgeable about these financing options and incentives.
4.7+ star average from verified customer reviews
All contractors are properly licensed and insured
10+ years average experience in the industry
Familiar with Koloa regulations and climate
Get answers to common questions about home solar services in Koloa, Hawaii.
For a typical Koloa home, a 6-8 kW solar system ranges from $20,000 to $35,000 before incentives. Crucially, Hawaii offers a state tax credit of 35% (capped at $5,000) in addition to the 30% federal tax credit, significantly lowering your net cost. You should also factor in Kauai's specific net energy metering (NEM) program with KIUC, which credits you for excess energy sent to the grid.
While Koloa enjoys abundant sunshine, the rainy season (typically November to March) and passing trade wind showers can cause daily fluctuations. However, modern high-efficiency panels perform well in diffuse light, and your system is designed based on Kauai's annual solar irradiance data to ensure you meet yearly energy goals, with sunnier months offsetting cloudier ones.
The key steps are obtaining a building permit from the County of Kauai and ensuring your installer handles the interconnection agreement with the Kauai Island Utility Cooperative (KIUC). KIUC has specific technical requirements for grid-tied systems. Additionally, if your home is in a historic district or has a homeowners association (HOA), there may be design review processes.
Choose a provider licensed to work in Hawaii (C-61 or C-60 specialty contractor license) with extensive local experience on Kauai. They must be intimately familiar with KIUC's interconnection process and Kauai County permitting. Look for established companies with strong references in the Koloa/ Poipu area, and always compare multiple detailed proposals that include equipment specs, production estimates, and warranty terms.
While not strictly necessary for basic operation, battery storage is highly recommended for resilience and maximizing savings. KIUC's NEM program has specific credit rates, and batteries allow you to store excess solar for use in the evening, reducing reliance on the grid during peak rates. Most importantly, batteries provide critical backup power during grid outages, which can occur during Kauai's severe weather events.