Red T

[farmerfred86]

Got a reply and was quite happy with the initial response. Sounds like anything less than 200kw of on site generation won't be viable at the moment. These is a grant scheme which can help but cost is still going to be an issue.

I like the idea because it seems to me that when performance of this system drops you will simply need to replace the liquid.... Compared to lithium battery systems that are hazardous waste when no longer usable.

 

[PhilSL]

We have an Energy Partnership Agreement with RedT, it took us a few months to negotiate though, but the terms and processes suit all parties, including clients.

From a commercial standpoint, we are the initial point of contact for our existing and potential clients, re the RedT Energy Storage Units. We collate all the required data on any proposed site/project, submit it to RedT and liaise thereafter with the client. Invariably though, after the initial data is submitted to RedT, their technical team take over, and they are in direct contact with the potential client(s). As we generate our revenue directly from RedT via the sales of the Energy Storage Units, (all payments for the Energy Storage Units are paid directly to RedT, and not third parties), there are no costs to our clients, and/or potential clients, for our services.

At present, we are collectively, refining the details of the RDPE Countryside Productivity Scheme Grant marketing material.

Here's an overview:

The Grant
For farmers: livestock, dairy, arable and horticulture
To improve farm productivity through:
• Increasing the use of farm produced renewable energy by improving
energy storage and distribution
• Using robotic equipment and systems to aid crop and livestock
production
• Using LED wavelength controlled lighting to aid crop production
• More efficiently using of livestock slurries, manures and digestate

Amount available: 40% of project
Minimum grant: £35,000
Maximum grant: £1,000,000

Energy storage project example: poultry farm
Onsite data:
• Annual usage 600,000kWh
• 30kWp solar array
Current energy costs per year: £70,800 at 11.8p/kWh
Cost and payback of adding energy storage:
• Storage added: 45kW-225kWh redT storage machine
• System and installation: £180,600
• Grant amount: £72,240
• Cost after grant: £108,360
• IRR after grant: 19.8%
• Simple payback: 7.2 years
NEW energy cost per year: £59,410 at 9.9p/kWh SAVINGS

Benefits of adding storage to your site:
• Utilise surplus renewable energy generation
• Decrease energy prices
• De-risk future increases in energy prices
• Secure energy supply
• Cash returns
• Sustainable energy

redT energy provides full support to prepare and
submit the grant application. Including:
• Creating financial model and project feasibility study using
redT’s unique economic model
• Demonstrating the returns the project
• Getting quotes for alternative storage solutions
• Drafting the RDPE Grant documentation for you to complete
and submit

Requirements:
For the best return, your farm needs to have:
• Over 100,000kWh of annual electricity usage
• An overall energy cost of over 10.5p/kWh
• Renewable generation, or plans for renewable generation, on site

What redT energy needs to complete grant application:
• Half hourly energy consumption data
• Half hourly energy generation data
• 12 months of electricity bills
1. Documentation
• Generation data
• Consumption data
• 12 months of energy bills
2. Project exclusivity agreement (6 months)
redT energy requires exclusivity in recognition that we will incur costs from:
• supporting your submission for the grant
• carrying out analysis of the site energy flows
• modelling the revenue that can be generated by applying storage to your site
3. Complete and submit RDPE grant form
• redT’s data gathering form

There are essentially four steps in the process;
Step 1.
We work with you to assess your needs and recommend a solution which works best for you.This includes:
Data Gathering
Financial Modelling
Solution Specification
Site Survey
Proposal and Contract.

Step 2.
We design the solution to your specifications and advise you on steps you need to take prior to delivery. This includes;
Sire Survey
Design Proposal
Site Preparation
Equipment Manufacture
Delivery Schedule

Step 3.
The team of highly experienced installation engineers will site, commission and test the system. This includes;
Safety Inspection
Grid Standards (G100)
Acceptance Testing
Commissioning Sign Off
Handover to Customer

Step 4.
RedT work with you to create maximum value from the energy storage system and remain on hand to provide tech support. This includes;
Remote Monitoring
Scheduled Maintenance
Revenue Stream Optimisation
On-going Customer Support
Aggregation and Energy Trading

The RedT Energy Storage System:
Durable liquid energy storage machines for Commercial and Industrial applications
• Use continually with no performance loss: charging and
discharging for the 25-year lifespan of renewable assets
• Sustainable and safe, non-toxic chemistry with no risk of
thermal runaway
• Lowest cost vanadium redox flow energy storage machines
commercially available worldwide
• 7.5 years equivalent operating machines
• Proven technology, 17 years of development
• Customers across UK, EU, Australia and Africa
• UK-based company (plc AIM:RED),
offices in UK, USA and Africa

You may have seen this video...or not!

I trust this information has helped, and if you are interested in Energy Storage Units and would like more info, please don't hesitate to contact me, either via the forum or email [email protected]

 

[akaPABLO01]

We have an Energy Partnership Agreement with RedT, it took us a few months to negotiate though, but the terms and processes suit all parties, including clients.

From a commercial standpoint, we are the initial point of contact for our existing and potential clients, re the RedT Energy Storage Units. We collate all the required data on any proposed site/project, submit it to RedT and liaise thereafter with the client. Invariably though, after the initial data is submitted to RedT, their technical team take over, and they are in direct contact with the potential client(s). As we generate our revenue directly from RedT via the sales of the Energy Storage Units, (all payments for the Energy Storage Units are paid directly to RedT, and not third parties), there are no costs to our clients, and/or potential clients, for our services.

At present, we are collectively, refining the details of the RDPE Countryside Productivity Scheme Grant marketing material.

Here's an overview:

The Grant
For farmers: livestock, dairy, arable and horticulture
To improve farm productivity through:
• Increasing the use of farm produced renewable energy by improving
energy storage and distribution
• Using robotic equipment and systems to aid crop and livestock
production
• Using LED wavelength controlled lighting to aid crop production
• More efficiently using of livestock slurries, manures and digestate

Amount available: 40% of project
Minimum grant: £35,000
Maximum grant: £1,000,000

Energy storage project example: poultry farm
Onsite data:
• Annual usage 600,000kWh
• 30kWp solar array
Current energy costs per year: £70,800 at 11.8p/kWh
Cost and payback of adding energy storage:
• Storage added: 45kW-225kWh redT storage machine
• System and installation: £180,600
• Grant amount: £72,240
• Cost after grant: £108,360
• IRR after grant: 19.8%
• Simple payback: 7.2 years
NEW energy cost per year: £59,410 at 9.9p/kWh SAVINGS

Benefits of adding storage to your site:
• Utilise surplus renewable energy generation
• Decrease energy prices
• De-risk future increases in energy prices
• Secure energy supply
• Cash returns
• Sustainable energy

redT energy provides full support to prepare and
submit the grant application. Including:
• Creating financial model and project feasibility study using
redT’s unique economic model
• Demonstrating the returns the project
• Getting quotes for alternative storage solutions
• Drafting the RDPE Grant documentation for you to complete
and submit

Requirements:
For the best return, your farm needs to have:
• Over 100,000kWh of annual electricity usage
• An overall energy cost of over 10.5p/kWh
• Renewable generation, or plans for renewable generation, on site

What redT energy needs to complete grant application:
• Half hourly energy consumption data
• Half hourly energy generation data
• 12 months of electricity bills
1. Documentation
• Generation data
• Consumption data
• 12 months of energy bills
2. Project exclusivity agreement (6 months)
redT energy requires exclusivity in recognition that we will incur costs from:
• supporting your submission for the grant
• carrying out analysis of the site energy flows
• modelling the revenue that can be generated by applying storage to your site
3. Complete and submit RDPE grant form
• redT’s data gathering form

There are essentially four steps in the process;
Step 1.
We work with you to assess your needs and recommend a solution which works best for you.This includes:
Data Gathering
Financial Modelling
Solution Specification
Site Survey
Proposal and Contract.

Step 2.
We design the solution to your specifications and advise you on steps you need to take prior to delivery. This includes;
Sire Survey
Design Proposal
Site Preparation
Equipment Manufacture
Delivery Schedule

Step 3.
The team of highly experienced installation engineers will site, commission and test the system. This includes;
Safety Inspection
Grid Standards (G100)
Acceptance Testing
Commissioning Sign Off
Handover to Customer

Step 4.
RedT work with you to create maximum value from the energy storage system and remain on hand to provide tech support. This includes;
Remote Monitoring
Scheduled Maintenance
Revenue Stream Optimisation
On-going Customer Support
Aggregation and Energy Trading

The RedT Energy Storage System:
Durable liquid energy storage machines for Commercial and Industrial applications
• Use continually with no performance loss: charging and
discharging for the 25-year lifespan of renewable assets
• Sustainable and safe, non-toxic chemistry with no risk of
thermal runaway
• Lowest cost vanadium redox flow energy storage machines
commercially available worldwide
• 7.5 years equivalent operating machines
• Proven technology, 17 years of development
• Customers across UK, EU, Australia and Africa
• UK-based company (plc AIM:RED),
offices in UK, USA and Africa

You may have seen this video...or not!

I trust this information has helped, and if you are interested in Energy Storage Units and would like more info, please don't hesitate to contact me, either via the forum or email [email protected]

Oreet Phil, a few questions I have regarding your poultry farm example.

1. 30kW solar feeding this storage, if the minimum grant requirement is £35,000 And the total amount sold is £180,600, does this mean that you’ve used 225kW storage at £840/kW, how are the batteries getting charged, evening tariff 2 and used during day tariff 1?

2. Does the client pay RedT the 100% total cost of the equipment with added installation then receive 40% in stages payments after commission and sign off OR does the client pay 60% to RedT and RedT receive the 40% grant?

3. Do you think this system would only work if renewable energy is generated, only a maximum site usage not exceeding 30% of demand from generated use so the batteries can store or make use of 70%?

4. In reality, are cost savings only realised if power can be stored at night rate and used at day rate?

 

[PhilSL]

Oreet Phil, a few questions I have regarding your poultry farm example.

1. 30kW solar feeding this storage, if the minimum grant requirement is £35,000 And the total amount sold is £180,600, does this mean that you’ve used 225kW storage at £840/kW, how are the batteries getting charged, evening tariff 2 and used during day tariff 1?

2. Does the client pay RedT the 100% total cost of the equipment with added installation then receive 40% in stages payments after commission and sign off OR does the client pay 60% to RedT and RedT receive the 40% grant?

3. Do you think this system would only work if renewable energy is generated, only a maximum site usage not exceeding 30% of demand from generated use so the batteries can store or make use of 70%?

4. In reality, are cost savings only realised if power can be stored at night rate and used at day rate?

Thanks for the questions. I have requested the answers for you. Well, I have actually sent my answers to you to be checked for clarity and accuracy as we are at a pre-launch stage of this campaign, and all info relayed back to potential clients needs to cleared with RedT.

I shall post the answers here, as soon as I receive the confirmation from RedT.

 

[PhilSL]

Oreet Phil, a few questions I have regarding your poultry farm example.

1. 30kW solar feeding this storage, if the minimum grant requirement is £35,000 And the total amount sold is £180,600, does this mean that you’ve used 225kW storage at £840/kW, how are the batteries getting charged, evening tariff 2 and used during day tariff 1?
The system will be charged through a combination of the excess solar and from the grid. We would be looking to take advantage of off peak-lower pricing to charge. Regarding the pricing, the system on the site is 45kw - 225kWh system. Fully installed the price of the system is 180,600, once the grant is applied the cost of system is £108,360. So with the grant the price of system will be £481.60/kWh. If you were to cycle that system once a day for the next 15 years the cost of ownership would be 6.5p/kWh. If we have made a different interpretation of you question, please do contact us to get more clarity?

2. Does the client pay RedT the 100% total cost of the equipment with added installation then receive 40% in stages payments after commission and sign off OR does the client pay 60% to RedT and RedT receive the 40% grant?
The Grant is recouped after capital outlay, our interpretation of the documentation is that you can make 3 claims totalling to, your total grant amount. We anticipate you claiming the grant after each payment tranche of the system; 30% on order, 30% on manufacturing and 40% on completion and commissioning.

3. Do you think this system would only work if renewable energy is generated, only a maximum site usage not exceeding 30% of demand from generated use so the batteries can store or make use of 70%?
Regarding your scenario it could work, as long as there is enough load. If you have 250kWp of generation and 60kW load, then yes it should offer decent returns.

4. In reality, are cost savings only realised if power can be stored at night rate and used at day rate?
The main savings are from storing your renewables and using them when there are none, and reducing your consumption at expensive usage periods. This ensures the system will pay back. To accelerate revenues and quicken returns you would look to offer grid services and other cash generation schemes through an aggregator.

Answers above in blue. If you require any further detailed information, and in the absence of any 'hard site/project data', may I suggest a telephone conversation with someone at RedT?

 

[akaPABLO01]

Answers above in blue. If you require any further detailed information, and in the absence of any 'hard site/project data', may I suggest a telephone conversation with someone at RedT?

Cheers Phil

So the scenario is based on 225kW storage with 30kW solar relying heavily on charge from evening rate because the site draws 600,000kWh annually.

Ok, a further question please.

This system seems to me to be of best benefit to dairy farmers who milk twice daily possibly thrice on a tariff 1 day rate, and tariff 2.

As I understand if a feasibility study is done using half hourly data and deemed fit, what calculations are used to impact annual increase in electricity cost as standard %?

Also, would this impact night rate if this increases to becoming the majority draw. For example using a dairy farm, day rate 7am-Midnight and night for 7 hours.
Said dairy farm uses 70% of draw in the day which then becomes 20%, and night draw 80%?

What % or cost is the annual service of this system?

Is there a dno application and/or cost, does the dno sign the system off by checking the standards of g100. Is the limited included in the cost or does this already come built into the system?

Will the limiter effect export if the site already has a generation station and export meter. For example, the site uses 500,000kWh annually, has 150kW solar, the batteries are charged in the evening. Solar is generating and exporting. The site is not using electricity for 1 hour. Will the export meter work?

So, the system outlay is £180,600 plus VAT, this will be paid out upon commission. The site will have access to 225kW storage. The minimum application requirement for electricity usage is 274kWh 24hr, 100,000kWh. Hmm, does this work on a site using 100,000kWh at that cost?

Let’s say that the 100,000kWh site uses 75% in the day and 25% in the evening.

Tariff 1 - £0.15 inc CCL
tariff 2 - £0.08 “”” (generous)

£11,250 day
£2,000 night

£13,250 electricity, let’s say £15,000 including hidden charges.

We cannot store all the sites 24hr usage as we have a 49kW overdraw. We completely take 75% from evening throughout the year, never pay for energy in tariff 1.

Saving is £0.07p by buying energy in the evening.

75,000 x £0.07 = £5,250

25,000 x £0.07 = £1,750

Surplus needed to buy from the grid annually 49*365 = 17,885kWh
17,885 x 0.15 = £2,682.75

Total cost annually to charge the batteries, bring in surplus energy to fill the void and evening is

£9,682.75

Savings £5,317.25

£180,600 / 5,317.25 = 34 year payback

let’s throw in a solar system, 30kW. The factor of generation spring, summer, autumn. 75% of the year. We get some 26,000kWh annually. @PhilSL how does the site use the solar, if the batteries are full will they disconnect from network and allow the solar priority service of electrical need and will the surplus export due to battery disconnect or is there a smart system to instinctively switch to support if the solar blimps out due to cloud?

So whilst I await that we let’s say the batteries are smart and alternate solar, charge and usage. We have 26,000kWh.

Day, 75,000 becomes 49,000kWh

49,000 + 25,000 = 74,000kWh

74,000 x 0.07 = £5,180 annual electricity charge

£15,000 - 5,180 = £9,820

£180,600 / 9,820 = 18.4 year payback.

Hang on, the grant!
£72,240

180,600 - 72,240 = £108,360 / £9,820

11.2 year payback!
Now that’s better
Add on service charge of £1,800 annually

108,360 / 8,020 = 13.5 year payback
Better but still not liking it.

What’s the annual cost of service?


@PhilSL

 

[akaPABLO01]

@PhilSL i just had a thought.

The reason they offer a 45-225 range is because the batteries may not fully charge over a 24 hour period, is this so?

Also, how long do the batteries take to fully charge off mains?

 

[Solarfarmer]

Hi Phil,

Do you think this system could work on a site with lots of solar generation (650kw) and with a low on site electricity usage?

So you'd be looking at getting an income from selling the solar power for a better price at peak times and using an aggregator to access grid services?

Could this still qualify for the grant?

 

[akaPABLO01]

Hi Phil,

Do you think this system could work on a site with lots of solar generation (650kw) and with a low on site electricity usage?

So you'd be looking at getting an income from selling the solar power for a better price at peak times and using an aggregator to access grid services?

Could this still qualify for the grant?

If he install is on a farm mains connection, yes.

 

[akaPABLO01]

I’m running a feasibility today using hhd of one of my farms with 100kW

 

[Solarfarmer]

If he install is on a farm mains connection, yes.

The system is split into 150kw that is connected to the grid through the farm. The other 500Kw isn't connected to any usage, its 100% exported power.
I'd be very interested if these batteries are feasible!

 

[akaPABLO01]

The system is split into 150kw that is connected to the grid through the farm. The other 500Kw isn't connected to any usage, its 100% exported power.
I'd be very interested if these batteries are feasible!

the calculations have got me run up the wall and are complicated, scenarios like the one i did above cannot be crossed over as a specific cost versus payback, in fact the one i did with 11.5 year packback is done with a new 30kW solar system and not one that is already on site making use of the generated electricity so ive gone back to the drawing board. Im working on 2 sites now one with 100kW and one with 150kW solar. There are so many angles that i need to get ready but, this may prove to be worthwhile, i think.

with regard to your query, my understanding is the grant is for farm enhancement, meaning with savings you'll be able to hire another hand or be more productive in harvest. If you are making use of the connected array to the farm then you can apply for the grant. If the other arrays are direct network connection i doubt you would be able to access the grant available. Thats my understanding.

Here is the outline

https://www.gov.uk/government/uploa...5/Improving_Farm_Productivity_handbook_v2.pdf

 

[Solarfarmer]

This would be a problem for anyone that doesn't use much power. We use about 80 units at most, usually a lot less.

• installation of electrical battery storage system to enable better use of renewable electricity produced on the farm. The electrical storage capacity may not exceed the lowest of: - the amount of energy produced in a 24 hour cycle, - the amount of energy used within the business in a 24 hour period, - total power output of battery storage system must not exceed 1 MW

 

[HBush]

We have an Energy Partnership Agreement with RedT, it took us a few months to negotiate though, but the terms and processes suit all parties, including clients.

From a commercial standpoint, we are the initial point of contact for our existing and potential clients, re the RedT Energy Storage Units. We collate all the required data on any proposed site/project, submit it to RedT and liaise thereafter with the client. Invariably though, after the initial data is submitted to RedT, their technical team take over, and they are in direct contact with the potential client(s). As we generate our revenue directly from RedT via the sales of the Energy Storage Units, (all payments for the Energy Storage Units are paid directly to RedT, and not third parties), there are no costs to our clients, and/or potential clients, for our services.

At present, we are collectively, refining the details of the RDPE Countryside Productivity Scheme Grant marketing material.

Here's an overview:

The Grant
For farmers: livestock, dairy, arable and horticulture
To improve farm productivity through:
• Increasing the use of farm produced renewable energy by improving
energy storage and distribution
• Using robotic equipment and systems to aid crop and livestock
production
• Using LED wavelength controlled lighting to aid crop production
• More efficiently using of livestock slurries, manures and digestate

Amount available: 40% of project
Minimum grant: £35,000
Maximum grant: £1,000,000

Energy storage project example: poultry farm
Onsite data:
• Annual usage 600,000kWh
• 30kWp solar array
Current energy costs per year: £70,800 at 11.8p/kWh
Cost and payback of adding energy storage:
• Storage added: 45kW-225kWh redT storage machine
• System and installation: £180,600
• Grant amount: £72,240
• Cost after grant: £108,360
• IRR after grant: 19.8%
• Simple payback: 7.2 years
NEW energy cost per year: £59,410 at 9.9p/kWh SAVINGS

Benefits of adding storage to your site:
• Utilise surplus renewable energy generation
• Decrease energy prices
• De-risk future increases in energy prices
• Secure energy supply
• Cash returns
• Sustainable energy

redT energy provides full support to prepare and
submit the grant application. Including:
• Creating financial model and project feasibility study using
redT’s unique economic model
• Demonstrating the returns the project
• Getting quotes for alternative storage solutions
• Drafting the RDPE Grant documentation for you to complete
and submit

Requirements:
For the best return, your farm needs to have:
• Over 100,000kWh of annual electricity usage
• An overall energy cost of over 10.5p/kWh
• Renewable generation, or plans for renewable generation, on site

What redT energy needs to complete grant application:
• Half hourly energy consumption data
• Half hourly energy generation data
• 12 months of electricity bills
1. Documentation
• Generation data
• Consumption data
• 12 months of energy bills
2. Project exclusivity agreement (6 months)
redT energy requires exclusivity in recognition that we will incur costs from:
• supporting your submission for the grant
• carrying out analysis of the site energy flows
• modelling the revenue that can be generated by applying storage to your site
3. Complete and submit RDPE grant form
• redT’s data gathering form

There are essentially four steps in the process;
Step 1.
We work with you to assess your needs and recommend a solution which works best for you.This includes:
Data Gathering
Financial Modelling
Solution Specification
Site Survey
Proposal and Contract.

Step 2.
We design the solution to your specifications and advise you on steps you need to take prior to delivery. This includes;
Sire Survey
Design Proposal
Site Preparation
Equipment Manufacture
Delivery Schedule

Step 3.
The team of highly experienced installation engineers will site, commission and test the system. This includes;
Safety Inspection
Grid Standards (G100)
Acceptance Testing
Commissioning Sign Off
Handover to Customer

Step 4.
RedT work with you to create maximum value from the energy storage system and remain on hand to provide tech support. This includes;
Remote Monitoring
Scheduled Maintenance
Revenue Stream Optimisation
On-going Customer Support
Aggregation and Energy Trading

The RedT Energy Storage System:
Durable liquid energy storage machines for Commercial and Industrial applications
• Use continually with no performance loss: charging and
discharging for the 25-year lifespan of renewable assets
• Sustainable and safe, non-toxic chemistry with no risk of
thermal runaway
• Lowest cost vanadium redox flow energy storage machines
commercially available worldwide
• 7.5 years equivalent operating machines
• Proven technology, 17 years of development
• Customers across UK, EU, Australia and Africa
• UK-based company (plc AIM:RED),
offices in UK, USA and Africa

You may have seen this video...or not!

I trust this information has helped, and if you are interested in Energy Storage Units and would like more info, please don't hesitate to contact me, either via the forum or email [email protected]

 

[HBush]

PhilSL - re. • Sustainable and safe, non-toxic chemistry with no risk of
thermal runaway, Wikipedia says " All vanadium compounds should be considered toxic."

 

[HBush]

PhilSL - Should the spent liquid waste be considered a hazardous waste material?

 

[f0ster]

A friend of mine is a chemist and he definitely classes it as hazardous waste.

 

[PhilSL]

Cheers Phil

So the scenario is based on 225kW storage with 30kW solar relying heavily on charge from evening rate because the site draws 600,000kWh annually.

Ok, a further question please.

This system seems to me to be of best benefit to dairy farmers who milk twice daily possibly thrice on a tariff 1 day rate, and tariff 2.

As I understand if a feasibility study is done using half hourly data and deemed fit, what calculations are used to impact annual increase in electricity cost as standard %?

Also, would this impact night rate if this increases to becoming the majority draw. For example using a dairy farm, day rate 7am-Midnight and night for 7 hours.
Said dairy farm uses 70% of draw in the day which then becomes 20%, and night draw 80%?

What % or cost is the annual service of this system?

Is there a dno application and/or cost, does the dno sign the system off by checking the standards of g100. Is the limited included in the cost or does this already come built into the system?

Will the limiter effect export if the site already has a generation station and export meter. For example, the site uses 500,000kWh annually, has 150kW solar, the batteries are charged in the evening. Solar is generating and exporting. The site is not using electricity for 1 hour. Will the export meter work?

So, the system outlay is £180,600 plus VAT, this will be paid out upon commission. The site will have access to 225kW storage. The minimum application requirement for electricity usage is 274kWh 24hr, 100,000kWh. Hmm, does this work on a site using 100,000kWh at that cost?

Let’s say that the 100,000kWh site uses 75% in the day and 25% in the evening.

Tariff 1 - £0.15 inc CCL
tariff 2 - £0.08 “”” (generous)

£11,250 day
£2,000 night

£13,250 electricity, let’s say £15,000 including hidden charges.

We cannot store all the sites 24hr usage as we have a 49kW overdraw. We completely take 75% from evening throughout the year, never pay for energy in tariff 1.

Saving is £0.07p by buying energy in the evening.

75,000 x £0.07 = £5,250

25,000 x £0.07 = £1,750

Surplus needed to buy from the grid annually 49*365 = 17,885kWh
17,885 x 0.15 = £2,682.75

Total cost annually to charge the batteries, bring in surplus energy to fill the void and evening is

£9,682.75

Savings £5,317.25

£180,600 / 5,317.25 = 34 year payback

let’s throw in a solar system, 30kW. The factor of generation spring, summer, autumn. 75% of the year. We get some 26,000kWh annually. @PhilSL how does the site use the solar, if the batteries are full will they disconnect from network and allow the solar priority service of electrical need and will the surplus export due to battery disconnect or is there a smart system to instinctively switch to support if the solar blimps out due to cloud?

So whilst I await that we let’s say the batteries are smart and alternate solar, charge and usage. We have 26,000kWh.

Day, 75,000 becomes 49,000kWh

49,000 + 25,000 = 74,000kWh

74,000 x 0.07 = £5,180 annual electricity charge

£15,000 - 5,180 = £9,820

£180,600 / 9,820 = 18.4 year payback.

Hang on, the grant!
£72,240

180,600 - 72,240 = £108,360 / £9,820

11.2 year payback!
Now that’s better
Add on service charge of £1,800 annually

108,360 / 8,020 = 13.5 year payback
Better but still not liking it.

What’s the annual cost of service?


@PhilSL

Hello, akaPablo01 (sorry, I don't know your name), I have sent the information to the project director at RedT, whose client this is, and he will advise accordingly as there are variables on each project to be considered.
I will say that not every project is suitable for a RedT unit, it's all dependant on the project. This is the reason RedT offers a free project feasibility study.

 

[PhilSL]

Hi Phil,

Do you think this system could work on a site with lots of solar generation (650kw) and with a low on site electricity usage?

So you'd be looking at getting an income from selling the solar power for a better price at peak times and using an aggregator to access grid services?

Could this still qualify for the grant?

Every project is different and the onsite consumption needs to be known prior to advising about the grant. Please feel free to send me the data you have on your site, and we will happily advise accordingly. [email protected]

 

[PhilSL]

PhilSL - Should the spent liquid waste be considered a hazardous waste material?

I have deferred this question to the technical parties at RedT. I will post their answer when I receive it.