How Solar Helps the Environment
Solar energy is one of the cleanest ways to produce electricity. By generating power from the sun instead of burning fossil fuels, solar helps protect the environment while powering homes and businesses.
Clean Energy, Cleaner Air
Solar panels produce electricity without emissions, reducing air pollution and greenhouse gases that contribute to climate change and health issues.
Conserves Water
Unlike traditional power plants, solar systems require little to no water to operate — helping preserve valuable water resources.
Protects Natural Resources
Solar reduces the need for mining, drilling, and fuel transportation, lowering environmental damage and protecting ecosystems.
Low Environmental Impact Over Time
Solar panels offset the energy used to make them within a few years and then generate clean power for decades.
A Sustainable Energy Future
Solar is renewable, reliable, and abundant — helping build a cleaner, more resilient energy system for future generations.
How Solar Helps Communities
Solar energy doesn't just benefit individual homes and businesses — it strengthens entire communities.
Creates Local Jobs
Solar projects create skilled jobs in construction, engineering, and maintenance, supporting local workers and economies.
Keeps Energy Dollars Local
By generating power locally, communities reduce reliance on distant power plants and keep energy spending within the region.
Improves Energy Resilience
Solar paired with battery storage can help critical facilities stay powered during outages, improving community reliability and safety.
Expands Access to Clean Energy
Community solar programs allow residents, renters, and businesses to benefit from solar even if they can't install panels themselves.
Supports a Healthier Environment
Cleaner energy means improved air quality and a healthier place to live and work.
How Solar Helps the Power Grid
Solar energy plays an important role in strengthening and modernizing the electric grid.
Reduces Strain During Peak Demand
Solar produces the most power during the day — when electricity demand is often highest — helping reduce stress on the grid during peak hours.
Provides Local Power Generation
By generating electricity close to where it's used, solar reduces the need to move power long distances, improving efficiency and reliability.
Improves Grid Resilience
Distributed solar systems help create a more flexible grid. When paired with battery storage, solar can support power during outages and grid disruptions.
Supports Grid Stability
Modern solar inverters can help regulate voltage and frequency, supporting stable grid operations.
Delays Costly Grid Upgrades
By reducing peak loads and adding local generation, solar can help utilities postpone or avoid expensive infrastructure upgrades.
Works With Other Energy Sources
Solar complements traditional and renewable power sources, helping build a balanced and reliable energy mix.
How a Solar Site Is Built
A solar site is made up of several key components that work together to turn sunlight into usable electricity safely and efficiently.
Solar Panels
Panels capture sunlight and convert it into direct current (DC) electricity.
Racking & Foundations
Racking systems hold the panels in place and are anchored to the ground or roof to withstand wind, snow, and weather.
Inverters
Inverters convert DC electricity from the panels into alternating current (AC) power used by homes, businesses, and the grid.
Electrical Wiring & Equipment
Cables, combiner boxes, and protection devices safely move electricity from the panels to the inverter and beyond.
Utility Interconnection
The system connects to the electric grid, allowing solar power to supply on-site energy and send excess electricity back to the utility.
Monitoring & Safety Systems
Monitoring tracks performance in real time, while safety equipment ensures reliable operation for decades.
How a Ground-Mounted Solar Site Is Built
Ground-mounted solar systems are designed for open land and are built to deliver reliable, long-term energy production.
Site Evaluation & Layout
The process begins with surveying, soil analysis, and system layout to ensure optimal sun exposure and structural stability.
Foundations & Racking
Steel piles or ground screws are installed to anchor the racking system, which is engineered for local wind and snow loads.
Solar Panels
Panels are mounted onto the racking and positioned to capture the maximum amount of sunlight throughout the year.
Electrical Systems
Wiring, combiner boxes, and inverters are installed to safely collect and convert the power produced by the panels.
Grid Connection & Testing
The system is connected to the utility grid, inspected, and tested to ensure safe, reliable operation.
How a Rooftop Solar System Is Built
Rooftop solar systems turn unused roof space into a source of clean, reliable energy.
Roof Assessment & Design
Engineers evaluate roof condition, orientation, and shading to design a system that maximizes performance without compromising the structure.
Mounting Hardware
Specialized mounts are securely attached to the roof structure and sealed to protect against leaks.
Solar Panels
Panels are installed on the mounts and arranged to capture sunlight efficiently while maintaining a clean, low-profile appearance.
Inverters & Electrical Equipment
Inverters convert the power for use in the building, while electrical equipment ensures safe operation and code compliance.
Utility Interconnection & Monitoring
The system is connected to the grid and equipped with monitoring so performance can be tracked in real time.
Frequently Asked Questions
Answers to common questions about solar energy, the installation process, and working with Helios Energy.
Incentive Programs
Federal and state incentives can significantly reduce the cost of solar projects across New England. Below is an overview of the key programs available to commercial and utility-scale solar developers.
Federal Investment Tax Credit (ITC)
The federal ITC allows eligible businesses to deduct a significant percentage of solar installation costs from their federal tax liability. Under the Inflation Reduction Act, the base credit is 30% for projects that meet prevailing wage and apprenticeship requirements. Additional adders of 10% are available for domestic content, energy communities, and low-income projects. The ITC applies to both solar PV and battery storage systems, making it one of the most impactful incentives for commercial solar development.
Massachusetts SMART Program
The Solar Massachusetts Renewable Target (SMART) program provides long-term, fixed-rate compensation for solar energy produced by eligible systems in Massachusetts. Administered by the state's electric distribution companies, SMART offers 20-year tariff-based incentives with rates that vary by system size, location, and project type. Adders are available for canopy installations, energy storage, low-income serving facilities, and projects on brownfields or landfills. SMART has been a major driver of commercial solar development in the state.
Net Metering
Net metering policies across New England allow solar system owners to receive bill credits for excess electricity exported to the grid. In Massachusetts, net metering credits are applied at or near the retail electricity rate, depending on system size and utility. Credits can be allocated to other accounts through virtual net metering, enabling community solar programs and multi-site organizations to benefit from a single installation. Rules and credit rates vary by state — Connecticut, Rhode Island, and Maine each have their own net metering or successor tariff programs.
Other New England State Programs
Beyond Massachusetts, each New England state offers its own solar incentive landscape. Connecticut's LREC/ZREC programs provide long-term contracts for renewable energy. Rhode Island offers the Renewable Energy Growth program with fixed incentive rates. Maine's net energy billing program supports community solar. New Hampshire and Vermont provide net metering, renewable portfolio standards, and property tax exemptions for solar installations. The combination of federal and state incentives makes New England one of the strongest markets for commercial solar development in the country.
Equipment Guide
Understanding the equipment that goes into a solar system helps you make informed decisions. Here's an overview of the core components used in commercial solar installations.
Solar Panels
Modern commercial solar projects primarily use monocrystalline panels, which offer the highest efficiency (20–23%) and best performance in limited space. Polycrystalline panels are a lower-cost alternative with slightly lower efficiency (15–17%), suitable for ground-mount projects where space is less constrained. Thin-film panels are lightweight and flexible but less efficient, typically used in specialized applications. Panel wattage has increased significantly in recent years — today's commercial modules commonly range from 400W to 600W+ per panel, reducing the number of panels needed and lowering installation costs.
Inverters
Inverters convert the DC electricity produced by solar panels into AC power used by buildings and the grid. String inverters are the most common choice for commercial projects — they're cost-effective and reliable, handling power from multiple panels wired in series. Microinverters are installed on each individual panel and offer panel-level optimization, ideal for rooftops with shading or complex orientations. Power optimizers pair with string inverters to provide panel-level monitoring while keeping the cost benefits of a centralized inverter. For utility-scale projects, central inverters handle high-capacity power conversion in a single unit.
Racking & Mounting
Racking systems hold solar panels securely in place and are engineered to withstand local wind, snow, and seismic loads. For ground-mount systems, fixed-tilt racking is the most cost-effective option, while single-axis trackers follow the sun throughout the day and can increase energy production by 15–25%. Rooftop systems use ballasted or mechanically attached mounts depending on the roof type — flat commercial roofs typically use ballasted systems to avoid penetrating the membrane, while pitched roofs require flashed rail attachments. Canopy racking is custom-engineered for each site, supporting both the panels and the structure beneath.
Battery Storage
Battery energy storage systems (BESS) store excess solar energy for use when the sun isn't shining, enabling demand charge management, backup power, and grid services. Lithium-ion batteries — specifically lithium iron phosphate (LFP) — are the dominant chemistry for commercial solar-plus-storage projects due to their long cycle life, safety profile, and declining costs. Systems are sized based on the facility's load profile, utility rate structure, and project goals. Storage can be AC-coupled (connected at the inverter output) or DC-coupled (sharing a hybrid inverter with the solar array), each with trade-offs in efficiency, flexibility, and cost.