The quest to enhance the energy efficiency of recreational vehicles (RVs) is an exciting venture, particularly when it involves transforming a traditional diesel pusher bus into an all-electric coach. This detailed guide outlines how we upgraded my father’s 2006 Holiday Rambler Vacationer by installing a Magnum 2000 watt inverter and a robust solar array, all for under $1,200. This comprehensive article will cover the entire process, from initial preparation to final installation and performance assessment, providing valuable insights for anyone looking to embark on a similar journey.
Introduction
My father’s 2006 Holiday Rambler Vacationer diesel pusher bus has served us well over the years. However, to meet the increasing power demands and enhance its efficiency, we decided to upgrade the bus to an all-electric coach. The first step was installing a Magnum 2000 watt inverter, a crucial component that converted the bus into an all-electric vehicle. This transformation laid the foundation for a more ambitious project: installing a solar array to provide a sustainable and budget-friendly power source.
Project Overview and Budget Constraints
With a budget constraint of $1,200, our goal was to install a substantial solar array that would meet the power needs of the RV. The challenge was to find cost-effective yet reliable components that would ensure the system’s efficiency and durability. This project was unique because it involved using non-name-brand items purchased from Amazon, which had high positive reviews but were untested by us.
Choosing the Right Technology
Inverter Installation
The first major upgrade was installing the Magnum 2000 watt inverter. This inverter played a crucial role in converting the RV into an all-electric coach. By converting DC power from the batteries into AC power, it enabled us to use standard electrical appliances inside the bus, enhancing its functionality and comfort.
Solar Panels and Charge Controller
For the solar array, we selected solar panels and a 40 amp MPPT (Maximum Power Point Tracking) solar charge controller from EPever. The MPPT technology is particularly advantageous as it allows the solar panels to operate at their maximum power point, increasing the efficiency of the system. Despite being a non-name-brand product, the EPever charge controller received excellent reviews for its performance and reliability. To understand “How long does a solar panel last,” it’s important to note that most solar panels have a lifespan of 25-30 years, maintaining significant efficiency throughout this period.
Preparation and Installation
Mounting the Solar Panels
Before installing the solar panels, we needed to prepare the roof of the RV. We used Renogy mounting brackets to secure the panels. These brackets were chosen for their durability and ease of installation. Unlike our previous installations, we decided against a tilting solution to simplify the process, as my father did not plan to adjust the panels frequently.
Wiring Configuration
We opted for a series wiring configuration, operating at 48 volts. This configuration allowed us to use thinner wires, reducing the overall cost. However, it also meant that shading on one panel could affect the entire array’s performance. We carefully planned the layout to minimize shading and ensure optimal performance. For those looking to understand “How to wire a solar array,” this configuration is particularly efficient for reducing wire thickness and cost.
Securing the Panels
Drilling and Sealing
Securing the panels to the roof required drilling holes, a process that must be done carefully to avoid leaks. We used self-tapping screws with small rubber seals provided by the Renogy mounting brackets. Additionally, we applied Dicor self-leveling roof sealant to ensure a watertight installation. This sealant is specifically designed for RV roofs and provides excellent protection against water ingress.
Spacing and Layout
We spaced the panels approximately six inches apart, allowing enough room to maneuver around them for maintenance. This layout was chosen to maximize the number of panels we could install while ensuring ease of access.
Wiring and Safety Considerations
Routing the Wires
Routing the wires from the roof to the battery bank was a meticulous process. We utilized existing wire chases, typically found along the chassis, to run the wires safely. This approach ensured that the wires would not interfere with any mechanical components and provided a clean, professional installation.
Safety Measures
Safety is paramount when dealing with electrical installations. We incorporated multiple safety measures, including:
- MC4 Inline Fuse: This fuse protects the system from potential shorts between the solar array and the battery bank.
- Circuit Breakers: Installed between the array and the solar charge controller to prevent overcurrent.
- 50 Amp Fuse: Positioned between the battery bank and the solar charge controller to safeguard the system.
Performance and Adjustments
Initial Performance
Over the first six weeks, the system performed admirably, generating an average of 28 amps despite the challenges of shading and low sun angles as autumn approached. This performance demonstrated the system’s capability to meet the RV’s power demands under various conditions. Understanding “How much energy does a solar panel produce” depends on various factors including location, tilt, and efficiency of the panels.
Battery Upgrade
During the testing period, we discovered that my father’s existing batteries were insufficient to store the generated solar power. To address this, we upgraded to four new 6-volt, 265 amp-hour batteries, significantly increasing the storage capacity and ensuring that the solar power could be effectively utilized.
Solar Incentives and Environmental Impact
Incentives for Solar Panels
Investing in solar panels can be made more affordable through various incentives. The “Solar panel federal tax credit” allows homeowners to deduct a portion of their solar costs from their taxes, significantly reducing the overall expense. This tax credit can cover a substantial part of the installation costs, making solar energy more accessible.
Environmental Benefits
Solar panels not only reduce electricity bills but also have a positive environmental impact. They help reduce carbon emissions and reliance on fossil fuels. Additionally, addressing the question, “Are solar panels recyclable?”—yes, most parts of solar panels, including glass and metal, are recyclable, contributing to environmental sustainability.
Tools for Optimal Solar Array Setup
Solar Array Size Calculator and Output Calculator
To optimize the setup, tools like the “Solar array size calculator” and “Solar array output calculator” are invaluable.
These calculators help determine the number of panels needed and the expected energy output, ensuring the system meets specific energy requirements efficiently.
Solar Charge Controller Calculator
Using a “Solar charge controller calculator” ensures the correct size and type of charge controller is selected, which is crucial for the system’s efficiency and longevity.
American Array Solar and Roofing
Quality and Reliability
American Array Solar and Roofing is known for providing high-quality solar panels and roofing solutions. Their products are designed for durability and efficiency, making them a reliable choice for solar installations.
Conclusion
The successful installation of a solar array for under $1,200 on a 2006 Holiday Rambler Vacationer showcases the feasibility of budget-friendly renewable energy solutions for RVs. This project not only enhanced the power capabilities of the RV but also provided a sustainable and cost-effective energy source.
The experience gained from this project offers valuable insights for anyone looking to upgrade their RV with solar power.
