How to Choose the Right Off-Grid Solar System for Your Property: A Step-by-Step Guide
Why Choosing the Right Off-Grid System Matters
Choosing an off-grid solar system isn’t a one-size-fits-all process. Whether you’re powering a remote ranch, a resort, a mountain cabin, or industrial site, getting the right system for your property ensures that you’ll have reliable, long-term power. A properly tailored system will meet your energy needs and have some ability to grow, while providing peace of mind and energy independence. NewGrid specializes in designing off-grid solar systems for a wide variety of properties, offering custom solutions that outperform generic kits.
Step 1: Assessing Your Property’s Energy Needs
NewGrid has a new and unique way to assess property energy needs. Traditional load calculation spreadsheets with parameters for appliances, their energy usage, and the amount of time one anticipates they will operate are boring, tedious, and tend to minimize the power system; risking functionality and long term customer satisfaction. There is a better way that involves various discussions regarding:
- Occupancy
- Project location
- Water supply
- Short term, medium term, and long term plans for the property
- Air conditioning and space heating (HVAC)
- Equipment locations
- LP gas Vs. all electric
- A back-up generator
- Internet connectivity
- Any large unusual loads
NewGrid engages in this discussion, takes notes and distills the information into an estimated electrical demand using our proprietary sizing methodology.
Step 2: Evaluating the Site Location
The location of your property plays a critical role in how your system should be designed.
Solar Exposure Maximizing solar exposure is always important, but not like it was 20-30 years ago. Solar is much more economical now, so there’s always a good place for it and if we need a few more panels, that’s fine. A property with clear southern (or southwest or southeast) exposure is ideal for solar panel placement. Shaded areas or obstacles such as trees, mountains, or buildings can impact your system’s efficiency.
Terrain and Climate Consider environmental factors like heavy snowfall, extreme heat, or high winds. These factors might require extra protective measures like sturdier panel mounts, heated equipment shelters, or additional insulation for your battery bank to ensure year-round functionality.
Step 3: Selecting the Right System Components
A well-designed off-grid system includes more than just solar panels. Each component should be carefully chosen based on your energy demands and site conditions.
Solar Panels Modern solar panels are highly efficient and cost-effective. While solar panel technology hasn’t changed drastically over the years, advancements in efficiency allow you to generate more power in a smaller area. NewGrid uses top-quality panels designed to withstand harsh conditions while maximizing energy output.
Inverters The inverter converts the DC electricity from the panels into AC electricity used in homes and businesses. Inverters need to be sized correctly to handle both the immediate power needs and future growth. A properly sized inverter also ensures that battery charging is efficient and smooth.
Batteries Choosing between lead-acid and lithium-ion batteries is still a consideration in some cases, however lithium-ion has now effectively taken over the market. Lithium-ion batteries are more efficient, more readily available, and require less physical space, but they are sensitive to temperature, include complex communications schemes, and want to be in a clean room type environment. Lead-acid batteries are reliable and about the same price as lithium now, are bigger and heavier, making transport and installation more laborious
Generators A backup generator is essential for times when solar power isn’t enough, such as during long periods of cloud cover or high power usage. Generator size should be calculated based on the load it will support, plus the additional energy needed to charge the batteries. Propane generators are common, but diesel might be better for industrial applications.
Step 4: Budgeting for Your Off-Grid Solar System
Off-grid systems are an investment, and it’s important to understand the costs upfront.
Cost Breakdown The largest expenses in an off-grid system typically include:
- Solar panels
- Batteries
- Inverters
- Backup generators
- Installation and permitting
While these systems can have a higher initial cost compared to grid-tied solar systems, they provide long-term savings by eliminating utility bills and offering energy independence.
Financing and Incentives NewGrid works with clients to explore financing options, including federal tax credits and local incentives that reduce installation costs. It’s worth researching what solar incentives are available in your region to help offset the investment.
Step 5: Installation Considerations
NewGrid offers a seamless installation process that includes designing, constructing, and integrating all system components.
Professional Installation From digging trenches for underground cabling to building custom equipment shelters, NewGrid’s team ensures your system is built to last. Our installations meet all local codes and regulations, and we work with you to make sure the system is installed in the best possible location.
Permitting and Compliance NewGrid manages all permitting processes and ensures compliance with building and environmental regulations. Having an experienced team handle this prevents delays and ensures that your system meets the required standards.
Step 6: Maintenance and Long-Term Care
Off-grid systems require regular maintenance to ensure they function properly over the long term.
Routine Maintenance Regular tasks include cleaning solar panels, checking battery performance, and monitoring system status. For generators, regular oil changes and inspections are critical to keep the system running smoothly.
Remote Monitoring NewGrid systems often come equipped with remote monitoring software that allows you to track your energy production and consumption from anywhere. This helps identify issues before they become serious problems.
Step 7: Maximizing Energy Efficiency
An efficient system is one that’s designed for your unique needs and is properly managed over time.
Reducing Consumption Energy-efficient appliances, well-insulated buildings, and proper load management can reduce the strain on your solar system. NewGrid helps clients assess their energy habits to create a more sustainable lifestyle off the grid.
Optimizing Battery Life Batteries are one of the most expensive components in the system, so it’s essential to optimize their life. Keeping them at the correct temperature and preventing deep discharges are key to long-term success.