
While south was historically considered the best direction for solar panels in the Northern Hemisphere due to maximizing overall sunlight collection, the optimal direction is now more nuanced and depends on several factors:
Home Orientation and Obstacles: Not all homes have a perfect south-facing roof. Obstacles like trees or other buildings can also block sunlight, making a different orientation more effective. Even a less-than-optimal direction can still produce significant solar power, though it might require more panels.
Net Metering and Reimbursement: South-facing panels still have an advantage for net metering, as they produce the most energy around midday when household consumption is often lowest (people are at work/school). This maximizes the amount of excess power sent back to the grid for reimbursement.
Utility Rate Plans: This is a crucial new factor. Previously, net-metered homeowners were automatically on a tiered rate plan, meaning they were reimbursed at a flat rate for all power sent back to the grid. However, homeowners now have choices in their utility rate plans. This means that:
Time-of-Use (TOU) Rates: If a homeowner chooses a TOU rate plan, the optimal panel direction might shift. TOU rates charge different prices for electricity at different times of the day (e.g., higher prices during peak evening hours). In this scenario, orienting panels to produce more power during these higher-priced peak times, even if it means slightly less overall daily production, could lead to greater savings.
Strategic Savings: The “trick” is no longer just about collecting the most sunlight, but collecting it in a way that strategically helps the homeowner save on their electricity bills. This implies a more complex calculation involving electricity consumption patterns and utility rate structures.
Local Utility Rules and Regulations: These can significantly impact the feasibility and financial benefits of solar, including net metering rules, which can influence the best panel orientation.
In conclusion, while south remains a strong contender for maximizing overall energy production, the “best” direction for solar panels is no longer a one-size-fits-all answer. Homeowners now need to consider their specific home’s orientation, potential obstacles, their chosen utility rate plan, and local regulations to determine the most financially beneficial direction for their solar installation.
At New Dawn Energy Solutions, we help you navigate these changes and make smart choices for your home and future. Let us help you point your family in the right direction.