Alder Energy Systems
Charleston-based solar developer serving residential, commercial, and government clients across the Southeast since 2008
18+
Years in Business
30
Customer Reviews
75 mi
Service Area
11-50
Employees
SurgePV Score
About Alder Energy Systems
Alder Energy Systems is a solar developer and EPC contractor headquartered at 495 Jessen Lane in Charleston. Founded in 2008, the company has built a portfolio spanning residential, commercial, and government solar installations across the Southeast. Alder Energy was included in the Inc. 5000 list in 2017 and ranked on Solar Power World’s list of the 500 best solar contractors in the United States, reflecting steady growth over its operating history.
The company installs panels from REC and Hanwha Q Cells, paired with SolarEdge and Enphase inverters. Battery storage options include the Tesla Powerwall. Alder Energy holds NABCEP certification and offers services covering the full project lifecycle, from site assessment and system design through permitting, installation, monitoring, and ongoing maintenance. The company also develops community solar projects, expanding access to solar beyond individual rooftop installations.
Alder Energy Systems holds a 4.5-star rating across review platforms and is BBB accredited. The company operates Monday through Friday, 9:00 am to 5:00 pm, with a dedicated support team available at support@alder-energy.com for existing customers. Reviewers highlight the company’s deep expertise in incentive programs, professional project management, and experience with complex commercial and institutional installations.
Service Area
Alder Energy Systems serves the following areas within a 75-mile radius:
Contact Information
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Services Offered
Certifications & Accreditations
Partner Manufacturers
Panels
Inverters
Batteries
Warranty Coverage
25 years
12 years
10 years
What to Expect: Solar Installation Process
Initial Consultation
Free site survey and system design
Quote & Design
Detailed proposal with costs and savings
Installation
Panels, inverter, and wiring (1-3 days)
Inspection
City inspection and utility interconnection approval
Go Live
Utility grants PTO, system goes live
Customer Reviews
4.5
30 reviews
Michael R.
Alder Energy handled our commercial installation professionally from start to finish. The team was knowledgeable about incentive programs and designed a system that maximized our savings.
Patricia W.
Good experience with our residential installation. Alder has been around for over 15 years which gave us confidence. The system is performing as promised.
Steve G.
We chose Alder for their experience with government projects. Their team understood the procurement process and delivered a quality installation on schedule.
Frequently Asked Questions About Alder Energy Systems
What services does Alder Energy Systems offer?
Alder Energy Systems offers Solar Installation, Battery Storage, Solar Design, Energy Audit, Grid Connection, Maintenance, Monitoring.
Is Alder Energy Systems NABCEP certified?
Alder Energy Systems holds the following certifications: BBB Accredited, NABCEP Certified. Contact them directly for the latest accreditation details.
What areas does Alder Energy Systems serve?
Alder Energy Systems serves Charleston, Mount Pleasant, North Charleston, Summerville, Goose Creek, Moncks Corner. They are based in Charleston with a service radius of 120 km.
What warranty does Alder Energy Systems offer?
Alder Energy Systems offers 25-year panel warranty, 12-year inverter warranty, and 10-year installation/workmanship warranty.
How are Alder Energy Systems's customer reviews?
Alder Energy Systems has a 4.5/5 rating based on 30 customer reviews. Customers consistently rate them highly.
How long has Alder Energy Systems been in business?
Alder Energy Systems was founded in 2008 and has been in business for 18 years. They are one of the more experienced solar installers in their area.
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