- Companies
- Electricians
- Exeter
- Greenwave Renewables (SW) Ltd
Greenwave Renewables (SW) Ltd
- Company number
- 15876741
- Incorporated
- 5 Aug 20242 years trading
- Registered office
- 14 & 15 Southernhay West, Exeter, EX1 1PL
- Nature of business
- Electrical installation; Plumbing, heat and air-conditioning installation
Greenwave Renewables (SW) Ltd is a 2-year-old private limited company registered in Exeter, company number 15876741, one of 87 electrical contractors in Exeter. Its next accounts are due at Companies House on 31 May 2027, and the CT600 for the period to 31 August 2026 is due at HMRC on 31 August 2027.
Key dates
Worked out from the year end and filing history on the Companies House register.
Is this your company?
File the accounts to Companies House and the CT600 to HMRC yourself with A.X.E.L Filing. One set of questions, both filings, £49 flat. No accountant, no subscription.
File for Greenwave Renewables (SW) LtdOr get a reminder before each deadline
Free. We email you 60, 30, 14, 7 and 1 days before the accounts, CT600 and confirmation statement are due. Unsubscribe in one click.
Financial snapshot, 2025
From the balance sheet at 31 August 2025, as filed at Companies House. Negative net assets mean the company owed more than it owned at that date.
Where Greenwave Renewables (SW) Ltd is registered
The registered office is in Exeter (EX1), in the East Devon local authority area, England. Show EX1 1PL on a map.
Other trade companies in EX1
- Mor Edrin (Exeter) LimitedProperty developers
- Smart Doors and Windows LtdGlaziers
- CJW Garden Services LtdLandscapers and gardeners
- CW Auto Services LtdMechanics and garages
- Saltash Tyres & Auto Care LtdMechanics and garages
- South West Damp & Cavity Specialists LtdInstallers
- Weatherprotect Roofing LtdRoofers
- Urban Centric (Friary House) LtdProperty developers
Shared registered office
192 companies on our pages use this registered office address. An address shared this widely is usually an accountant's office or a company formation agent's service address, not where the business trades from.
What happens if Greenwave Renewables (SW) Ltd files late
Companies House charges an automatic penalty the day after the deadline, and it rises the longer the accounts are late. These are the dates for this company's accounts due on 31 May 2027.
| Companies House | Accounts delivered | Penalty |
|---|---|---|
| Up to 1 month late | 1 Jun 2027 to 30 Jun 2027 | £150 |
| 1 to 3 months late | 1 Jul 2027 to 31 Aug 2027 | £375 |
| 3 to 6 months late | 1 Sep 2027 to 30 Nov 2027 | £750 |
| More than 6 months late | From 1 Dec 2027 | £1,500 |
Penalties double if the accounts were also late the year before.
| HMRC (CT600) | From | Penalty |
|---|---|---|
| 1 day late | 1 Sep 2027 | £200 |
| 3 months late | 30 Nov 2027 | another £200 |
| 6 months late | 29 Feb 2028 | HMRC estimates the tax and adds 10% of the unpaid tax |
| 12 months late | 31 Aug 2028 | another 10% of any unpaid tax |
For returns filed on or after 1 April 2026. Late three times in a row and the £200 penalties become £1,000 each.
Company details
As held on the Companies House register.
- Company number
- 15876741
- Status
- Active
- Company type
- Private limited company
- Incorporated
- 5 August 2024 (2 years ago)
- Registered office
- 14 & 15 Southernhay West, Exeter, EX1 1PL
- Nature of business
- Electrical installation (SIC 43210)
Plumbing, heat and air-conditioning installation (SIC 43220) - Year end
- 31 August (accounting reference date)
- Accounts type
- Total exemption (full)
- Last accounts made up to
- 31 August 2025
- Last confirmation statement
- 4 August 2025
Filing notes for electrical contractors
Electrical contracting companies are often a director plus a van and tools. Most fall within the micro-entity rules, so the accounts filed at Companies House are short, and the CT600 carries the tax detail.
Similar companies in Exeter
Other active electrical contractors registered in Exeter.
- Ham Electrical Ltd2022
- Heg Services Limited2007
- Herolec Ltd2025
- Home Exeter Limited2019
- I.J. Cannings & Son Limited1985
- Ilec Group Limited2017
- J Wilson Electrical Limited2002
- J.Elworthy Electrical Contractors Ltd2019
All electrical contractors in Exeter · All trades in Exeter · Electricians across the UK
Frequently asked questions
When are Greenwave Renewables (SW) Ltd's accounts due?
Greenwave Renewables (SW) Ltd's next accounts are due at Companies House by 31 May 2027 (in 230 days), covering the period to 31 August 2026.
When is Greenwave Renewables (SW) Ltd's CT600 due?
The CT600 for the period to 31 August 2026 is due at HMRC by 31 August 2027, 12 months after the period end. The corporation tax itself is payable earlier, by 1 June 2027.
Is Greenwave Renewables (SW) Ltd still trading?
Greenwave Renewables (SW) Ltd is listed as active on the Companies House register (checked 13 Oct 2026). Active means it has not been dissolved or entered insolvency; it does not show whether it is currently taking on work.
What does Greenwave Renewables (SW) Ltd do?
Greenwave Renewables (SW) Ltd is registered under Electrical installation (SIC 43210); Plumbing, heat and air-conditioning installation (SIC 43220).
How old is Greenwave Renewables (SW) Ltd?
Greenwave Renewables (SW) Ltd was incorporated on 5 August 2024, 2 years ago.
What is the penalty if Greenwave Renewables (SW) Ltd files its accounts late?
Companies House charges £150 if the accounts are up to 1 month late, £375 up to 3 months, £750 up to 6 months and £1,500 after that, doubled if the previous year's accounts were also late. HMRC charges £200 for a CT600 filed a day late and another £200 at 3 months.
Official records
View Greenwave Renewables (SW) Ltd on Companies House for filed documents, officers and the full history.
Based on the Companies House register (snapshot 1 Oct 2026, rechecked 13 Oct 2026). Deadlines are worked out from the register and assume a standard accounting period; a change of year end or a short period moves them. This page is general information, not tax or accountancy advice.