Everyone uses energy differently. That’s why it’s important to arm yourself with information when thinking about purchasing a solar system for your home or business. Renewables, such as rooftop solar, have an important role to play. But it’s also important to understand how once installed; those panels rely on and are a part of the larger electrical grid. Installation of a solar system is a significant long-term investment and should be made with accurate information. 

Five things to know before going solar

1. ENERGY EFFICIENCY FIRST
An energy efficient home will save you money, even without a rooftop solar system.

2. SYSTEM SIZE
Customers use energy differently. Make sure your system is sized appropriately.

3. BILLING
What can you expect to pay monthly?

4. SELLING YOUR HOME
Who is the system owner?

5. GET ADVICE
Seek professionals!

IID’S commitment to our customers

IID is committed to solar and other forms of renewable energy and has demonstrated that commitment over the years. IID customers are generating more clean energy than ever before.

• As of July 2024, IID had more than 10,000 rooftop systems connected to the grid and that number continues to grow daily. In fact, IID has outperformed targets set by California’s Renewables Portfolio Standard, with solar energy experiencing dramatic growth in the past five years.  For the most recent information on solar rooftop installations interconnected to the IID’s electrical grid, click here.  
• IID has invested in a 30-megawatt, 20-megawatt-hour lithium-ion battery storage system, one of the largest of its kind in the western United States, which will help integrate renewable energy sources and add stability to the grid
• Currently, more than 40 percent of the electricity consumed by IID’s customers comes from a renewable energy resource.

If you have any questions prior to solar installation (interconnection requirements, initial questions, etc.), please contact the Distributed Interconnection Unit at 1-760-482-3673 or by email at solar@iid.com.

If you have any questions after solar installation (Billing inquiries, Net Billing credits, etc.), please contact IID Customer Service at 1-800-303-7756 or by email at customerservice@iid.com.