---
title: System Expansion: Maryland, DC, New Jersey, and Virginia
description: Completing a system expansion for my solar system located in MD, DC, NJ, VA
---
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1. [Sol Systems Knowledge Base](https://help.srecs.solsystems.com/?hsLang=en-us)
2. [Change of Ownership & System Expansions](https://help.srecs.solsystems.com/change-of-ownership-system-expansions?hsLang=en-us)
# System Expansion: Maryland, DC, New Jersey, and Virginia
## Completing a system expansion for my solar system located in MD, DC, NJ, VA
#### How do I complete a system expansion for my solar system? (MD, DC, NJ, VA)
**If you have added panels or increased the size of your solar system, this is considered a system expansion. To continue generating and selling SRECs, your system must be updated and approved by the state and GATS.**
**\*Please note that if the new panels feed into the same utility meter, it is a system expansion. In most cases, it does and it is very rare to add panels that feed a different utility meter\***
#### What information does Sol Systems need?
To process a system expansion, Sol Systems will request updated system details and documentation based on your state.
In general, you may be asked to provide:
- Updated **system size (capacity)**
- A **signed expansion agreement (DocuSign)**
- Additional documents depending on your state
#### What documents are required by state?
### Maryland
- **Signed Certificate of Completion (also known as interconnection agreement)** showing total system capacity (existing + new panels)
### Washington, DC
- **Interconnection agreement**
### New Jersey
- No additional state documentation is required
- Sol Systems will proceed with internal updates and GATS submission
### Virginia
- No additional state documentation is required unless we are selling your SRECs in the PA Tier I market
- Sol Systems will notify you if documentation is needed
#### Please use the below template to copy and paste in an email to send us:
Solar Panel Make and Model:
Panel Quantity:
Power Rating:
Roof Tilt:
Roof Azimuth:
Inverter Type:
Inverter Quantity:
Online Date:
Do not forget to attach the required documents depending on your state. At the minimum, we will always need an interconnection agreement.
#### What happens after I submit my documents?
Once all required documentation is received:
- Sol Systems submits your expansion to the **appropriate state authority**
- Your system details are updated in **GATS (the SREC tracking system)**
- Your system must be **approved by both the state and GATS** before generating SRECs at the new capacity
#### Will my SREC production be affected?
Yes, temporarily.
- If your system uses **production estimates** and remains under **10 kW in MD or DC**, it may be **temporarily paused in GATS** to prevent incorrect SREC minting
- Once approved, your system will resume normal SREC generation at the updated size
#### What if I added a second meter?
If your expansion includes a **new meter**:
- You may need to report **multiple meter readings or add them together to get the new total**
#### How long does the process take?
System expansions can take **several weeks to a few months**, depending on:
- State approval timelines
- GATS processing time
- How quickly Sol Systems receives accurate information
#### What happens once my expansion is approved?
After approval:
- Your updated system size will be reflected in GATS
- You will begin generating SRECs based on your **new system capacity**
- Sol Systems will notify you once the expansion is fully approved
- [FAQs](https://help.srecs.solsystems.com/faqs?hsLang=en-us)
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- [State Markets](https://help.srecs.solsystems.com/state-markets?hsLang=en-us#main-content)
- [Washington, DC](https://help.srecs.solsystems.com/state-markets?hsLang=en-us#washington-dc)
- [Maryland](https://help.srecs.solsystems.com/state-markets?hsLang=en-us#maryland)
- [Pennsylvania](https://help.srecs.solsystems.com/state-markets?hsLang=en-us#pennsylvania)
- [Virginia](https://help.srecs.solsystems.com/state-markets?hsLang=en-us#virginia)
- [New Jersey](https://help.srecs.solsystems.com/state-markets?hsLang=en-us#new-jersey)
- [Massachusetts](https://help.srecs.solsystems.com/state-markets?hsLang=en-us#massachusetts)
- [Ohio](https://help.srecs.solsystems.com/state-markets?hsLang=en-us#ohio)
- [Delaware](https://help.srecs.solsystems.com/state-markets?hsLang=en-us#delaware)
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- [Remote Monitoring](https://help.srecs.solsystems.com/remote-monitoring?hsLang=en-us)
- [Change of Ownership & System Expansions](https://help.srecs.solsystems.com/change-of-ownership-system-expansions?hsLang=en-us)
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