Skip to content
View in the app

A better way to browse. Learn more.

Power Forum - Renewable Energy Discussion

A full-screen app on your home screen with push notifications, badges and more.

To install this app on iOS and iPadOS
  1. Tap the Share icon in Safari
  2. Scroll the menu and tap Add to Home Screen.
  3. Tap Add in the top-right corner.
To install this app on Android
  1. Tap the 3-dot menu (⋮) in the top-right corner of the browser.
  2. Tap Add to Home screen or Install app.
  3. Confirm by tapping Install.

Should u go grid tied?

Featured Replies

I've just gotten started with solar and I'm currently designing a residential installation (5kw from the load analysis). I've gone through the Ekurhuleni municipality's documents on SSEG requirements and have noticed that quite a lot of due diligence is required in addition to NRS and SANS regulations. Is it really worth the headache going grid tied if the benefits are so small? Main motivation for the desire to go grid tied was to avoid battery costs while reducing my monthly bill.

  • 2 months later...

Hi Grandmaster. I have checked the ekurhuleni sseg documents for application for installation. It's a mission. 

Am I allowed to do my own installation as I do have skill, but do not possess a pv greencard certification. 

3 hours ago, Leo1026 said:

I have checked the ekurhuleni sseg documents for application for installation. It's a mission. 

I also had a look at the Ekhuruleni application forms it is not electrician friendly but quite a lot of documents and sign offs that’s needed. Documents look a bit extreme for a simple little installation. I am also interested in this process and am not sure if they might even require such documents for off-grid installations.

 

On 2021/10/31 at 1:03 PM, Grandmaster101 said:

I've just gotten started with solar and I'm currently designing a residential installation (5kw from the load analysis). I've gone through the Ekurhuleni municipality's documents on SSEG requirements and have noticed that quite a lot of due diligence is required in addition to NRS and SANS regulations. Is it really worth the headache going grid tied if the benefits are so small? Main motivation for the desire to go grid tied was to avoid battery costs while reducing my monthly bill.

Not sure about the small benefits. The pay back can be 2-2.5 years vs a 6-8 years when you add batteries to balance the savings over a 24 hour period instead of only during the sunshine period of the day.

Assuming your tool is a hybrid inverter that can work with or without a battery the cost for generation 1kwh per day for a 270W panel is about R1400. Adding a lithium battery to save this same 1kwh adds about R5000 to the cost.

Thus grid tied mode R1400 vs R6400 per kWh with battery although you buy the convenience of power during LShed/power failures.

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

Account

Navigation

Search

Search

Configure browser push notifications

Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.