Joining the Renewable Heating Hub forums is completely free and only takes a minute. By registering you’ll be able to ask questions, join discussions, follow topics you’re interested in, bookmark useful threads and receive notifications when someone replies. Non-registered members also do not have access to our AI features. When choosing your username, please note that it cannot be changed later, so we recommend avoiding brand or product names. Before registering, please take a moment to read the Forum Rules & Terms of Use so we can keep the community helpful, respectful and informative for everyone. Thanks for joining!
I think thats the difference then retail price v negotiated price. The most optimistic caluculation for my case is below, nothing like the return you are expecting @marvinator80.
House-3 bed partial stone bungalow, 5kW Samsung Gen 6 ASHP (Self install)
6.9 kWp of PV
10kWh DC coupled battery
Blog: https://thegreeningofrosecottage.weebly.com/
Heatpump Stats: http://heatpumpmonitor.org/system/view?id=60
@marvinator80 I think that equates to about 4.1% compound taking into account the loss of capital so its definitely a good investment if it makes that return.
House-3 bed partial stone bungalow, 5kW Samsung Gen 6 ASHP (Self install)
6.9 kWp of PV
10kWh DC coupled battery
Blog: https://thegreeningofrosecottage.weebly.com/
Heatpump Stats: http://heatpumpmonitor.org/system/view?id=60
Posted by: @bontwoody@marvinator80 I think that equates to about 4.1% compound taking into account the loss of capital so its definitely a good investment if it makes that return.
-- Attachment is not available --
thank you.
the Share Offer Document states the estimated return rate at 6.3%.
Posted by: @marvinator80@johnmo
Retail Value Savings:
- The electricity generated by your share of the wind farm is credited directly against your electricity bill at the retail rate. This means that if you invest in enough energy to cover 4500 kWh per year, the savings on your bill would reflect the cost of 4500 kWh at the rate you would otherwise be paying to your energy supplier (e.g., 19p per kWh).
2. How It Works:
- Ripple Energy partners with specific energy suppliers who manage these credits. When the wind farm generates electricity, the equivalent amount is deducted from your bill as if you had consumed it from the grid. You effectively receive the full retail value of the energy you’ve invested in.
3. No Wholesale Rates:
- Since the credit is applied based on the retail value, there’s no impact from the wholesale market prices. You are benefiting directly from the electricity offset, meaning your savings are calculated at the same rate that you would otherwise pay on your electricity bill.
So what I understand this to mean is that if I currently pay 19p per unit to Octopus for 7000kWH then once the wind farm is operational, as a Ripple investor/shareholder I will no longer have to pay this. Through their partnership with Octopus, this 7000kWH will be deducted from my Octopus bill over the course of a year.
Where did you get this? I do not believe this is correct, or at least it wasn't last time I looked into Ripple.
The amount you receive is based on your share of the price Ripple are able to sell the electricity produced, less their operating costs. This is a LOT less than the full retail value you are paying your supplier, unless they have changed their operating model.
From their FAQ:
Do I get free electricity?
No, the electricity from your wind farm or solar park isn't free but it should be a lot cheaper. You need to pay operating costs, as well as grid charges, levies, taxes and supply costs associated with your tariff. Costs and savings will vary by project. Details of the estimated cost and savings will be set out in the share offer document.
Further, this better reflects my understanding of how Ripple works:
https://rippleenergy.com/savings-and-cost
How do your savings work?
Every month, you will get credit applied to your electricity bill. The credit represents how much your share of the project generated, multiplied by the savings rate.
Savings rate = agreed price of power minus the operating cost of the project.
We work with energy suppliers to set a price for the power generated by your project annually. This price reflects the value of power on the wholesale market.
When the wholesale price of electricity is high, we agree a higher price with the suppliers and therefore, members get better savings their electricity bill.
A good example of this is for our first wind farm, Graig Fatha in Wales. In the first year of generation from March 2022, the savings rate was 9.5p/kWh (agreed price of power 11.5p/kWh - operating cost of wind farm 2p/kWh). The average member received savings on their electricity bill of around £300. In year 2, from March 2023, when wholesale electricity prices were very high, the savings rate also increased, and was set to 27p/kWh. This meant the average member received savings of around £95022 on their electricity bills, preventing them from seeing the huge rises in their electricity bills that non-members have seen. From March 2024, now that wholesale electricity prices are decreasing again, the savings rate has been set much lower at 6.55p/kWh.
Samsung 12kW gen6 ASHP with 50L volumiser and all new large radiators. 7.2kWp solar (south facing), Tesla PW3 (13.5kW)
Solar generation completely offsets ASHP usage annually. We no longer burn ~1600L of kerosene annually.
Posted by: @marvinator80Just a note to say thanks for this thread. We are going ahead with Ripple today.
2,892 Watts, 7,000 kWh of electricity per year.
Feels like a really good long term investment in our energy which will give us energy and price security. If the price of energy drops, we won't save as much but at current rates my numbers tell me we will save roughly £1330 per year on an investment of £4965. And the term on this wind farm is 30 years rather than 25.
The Ripple calculator says annual savings of £385 for 2,892 Watts, 7,000 kWh of electricity per year (at a cost of £4961), which works out at 5.5p per kWh, not the 19p you are thinking. I think you have fundamentally misunderstood the offer.
Samsung 12kW gen6 ASHP with 50L volumiser and all new large radiators. 7.2kWp solar (south facing), Tesla PW3 (13.5kW)
Solar generation completely offsets ASHP usage annually. We no longer burn ~1600L of kerosene annually.
@abernyte I missed that. That is bad news.
New to heat pumps? Take the Heat Pump Fundamentals course and use INTRO50 at checkout for 50% off.
Rewritten and updated for 2027
📘 From Zero to Heat Pump Hero
🛠️ Bodge Buster
🎧 Prefer to listen? Heat Pumps Explained – use AUDIO50 at checkout for 50% off.
That is a real shame! Several people have put money with them.
2kW + Growatt & 4kW +Sunnyboy PV on south-facing roof Solar thermal. 9.5kWh Givenergy battery with AC3. MVHR. Vaillant 7kW ASHP (very pleased with SCOP >4) open system operating on WC
@judith We have for a start, ‘never invest more than you can afford to lose’ they say. I understand that our cooperatives are independent of the management and will continue to develop. I imagine that a further delay in getting Derril Water Solar Park up and running isn’t out of the question yet. Regrets, Toodles.
Toodles, heats his home with cold draughts and cooks food with magnets.
The biggest problem for the Coops is that Ripple funded them and the Administrators might look to recover that money. If not, great but they will still need to find someone to take on running them. That might be tricky.
@toodles am I wrong in thinking that you guys had gone down the Ripple path?
New to heat pumps? Take the Heat Pump Fundamentals course and use INTRO50 at checkout for 50% off.
Rewritten and updated for 2027
📘 From Zero to Heat Pump Hero
🛠️ Bodge Buster
🎧 Prefer to listen? Heat Pumps Explained – use AUDIO50 at checkout for 50% off.
- 27 Forums
- 2,734 Topics
- 64.2 K Posts
- 977 Online
- 7,140 Members
Join Us!
Installer Finder
Degrees of Separation
Latest Posts
-
RE: Indevolt Batteries UK Support & Info Thread
I'd rather my sparky got it than they spent it arrestin...
By EtchedPixels , 2 minutes ago
-
RE: Can I start an argument about buffer tanks please? 🙂
You don't have to run the heat pump with a deltaT of 5°...
By bobflux , 24 minutes ago
-
RE: Acond heat pump failed after four years - diagnostic quote £940 plus VAT
@downfield Thank you Downfield. This sounds potenti...
By Mia , 3 hours ago
-
RE: Digest of UK Energy Statistics
@jeff Yes my brother in Oz told me of that charge year...
By Jancold , 4 hours ago
-
RE: Love veg, hate watering cans
My dear daughter came for a bath and was given clear (I...
By Jancold , 4 hours ago
-
RE: Questions about A2A for heating as well as cooling
@ashp-bobba ah that's good to know, I'll get in contact...
By donciccio , 6 hours ago
-
RE: Air source heat pump roll call – what heat pump brand and model do you have?
Samsung 16kw has been working well at home in Perthshir...
By DowallyDrifter , 7 hours ago
-
RE: Aircon - in listed buildings
@etchedpixels thanks for giving such a full and helpful...
By GrahamF , 1 day ago
-
RE: Who's your electricity provider and what's your tariff?
@old_scientist The service engineer powered down the ex...
By Papahuhu , 1 day ago
-
RE: Issue with Samsung Cascade System
@jamespa It's a funny system, but was out only option l...
By Renewables345 , 2 days ago
-
RE: HeatGeek vs Octopus surveys: puzzling disparity - any ideas why?
Thanks, I like the chart, very helpful and this will de...
By baroquebank , 2 days ago
-
RE: Solar Power Output – Let’s Compare Generation Figures
Production resumed to normal once the issue ...
By MK4 , 3 days ago
-
Hole diameter is small but hole length is also very sma...
By bobflux , 3 days ago
-
RE: Are Wind Turbines Really “Losers”?
We were sailing near a wind farm in the North Sea last ...
By Jeff , 3 days ago









