ARCTIUM ENERGY COMPANY BC Hydro Energy Storage Incentive
BC Hydro helps pay for a business battery in exchange for grid flexibility.
BC Hydro's Energy Storage Incentive pays up to 80% of the eligible cost of a new behind-the-meter battery at a business site, subject to per-kW and per-kWh caps. In return, BC Hydro dispatches part of the battery for 10 years. Get pre-approval before you buy or install.
Planning new HVAC or heat pump load? A battery can help it fit your existing service. See how.
BC Hydro’s customer manual sets no intake window, but terms change, so check BC Hydro before you commit. Once your agreement is signed you have 24 months to install, energize and connect to BC Hydro’s DERMS. Pre-approval comes before any purchase.
- General service (business) or irrigation rate customer, not transmission
- New, non-exporting battery behind the meter, at least 25 kW nominated
- Pre-approval before you buy or install
- A 10-year commitment to BC Hydro demand events
- Up to 80% of eligible project cost, capped at $10,000 per nominated kW and $10,000 per nominated kWh divided by 4
- The federal Clean Technology ITC can apply to the cost ESI does not cover, at up to 30%
- Lower hydro bills: the part of the battery you keep for peak shaving cuts your demand charges
- Installing first forfeits the incentive. This is the single most common loss
- Eligible cost is not project cost: freight, duties, service upgrades and interconnection fees are excluded
- Leaving early, or missing 85% reliability in a year, triggers clawbacks
- The technical review asks for interval data, not nameplate
What peak shaving actually does
ESI does not fund batteries in the abstract. It funds a specific move: absorbing your monthly demand spike so the grid never sees it. Here is the mechanism before the incentive.
On top of the per-kWh energy charge, BC Hydro bills commercial and industrial accounts a demand charge based on your single highest 15-minute draw all month. One short spike (a chiller and a compressor starting together, a shift change, a charger cycle) sets that number for the next 30 days, regardless of how quiet the rest of the month was. A battery sized to cover that spike discharges into the interval, the grid sees a flatter curve, and the bill follows the lower peak.
That reduction is measurable, sustained, and visible in your interval data, which is exactly what BC Hydro's technical review is looking for. The rest of this page is about the architecture that does it and how ESI pays for it.
How BC Hydro ESI works, in full
Reviewed October 2026 against BC Hydro's Energy Storage Incentives for Business customer manual (last updated 24 September 2026) and BC Hydro's incentive application process document. Program terms change, so confirm current terms with BC Hydro before you commit.
How the incentive is calculated
BC Hydro pays the lowest of three amounts. The incentive is based on the battery capacity you nominate to BC Hydro for dispatch, not on the size of the battery you buy.
| BC Hydro manual, example 2 | Arctium reference case | |
|---|---|---|
| Battery | 300 kWh / 100 kW | 2 × FLEX-365, 731.5 kWh / 350 kW |
| Nominated to BC Hydro | 192 kWh / 64 kW (after a 20% reserve) | 160 kWh / 40 kW |
| Eligible project cost | $1,000,000 | $458,672 |
| a) $10,000 × kWh ÷ 4 | $480,000 | $400,000 |
| b) $10,000 × kW | $640,000 | $400,000 |
| c) 80% of eligible cost | $800,000 | $366,938 |
| Incentive (the lowest) | $480,000 | $366,938 |
Left column is BC Hydro's published example. Right column is our reference case from a preliminary analysis, which assumes the whole project cost is eligible. Illustrative, not an estimate for your site.
The 80% figure is the one that binds only when eligible cost is below about $3,125 per nominated kWh and $12,500 per nominated kW. Above that, the kWh or kW limit applies and the incentive is lower than 80%. Sizing the nominated share against the project cost is part of the design, not an afterthought.
- Incentives are paid in three tranches: 50% on delivery of the system to site, 25% on BC Hydro's interconnection approval, and 25% on successful integration with BC Hydro's DERMS. BC Hydro pays within 6 weeks of receiving the documents for each milestone.
- Projects in eligible non-wires alternative or feeder relief areas may qualify for an additional top-up, set area by area, with total incentives capped at 100% of eligible costs.
- For batteries over 100 kW paired with solar, BC Hydro covers the cost of the Distribution Generator Interconnection facilities study where it applies.
Who is eligible
Eligibility is set by rate class and by the battery, not by industry. A site is in if it meets all of these.
- Rate class. A small, medium or large general service (business) rate, or an irrigation rate. Transmission customers are not eligible, and neither are customers on Self Generation rate 2289, Customer Generation rate 2290 or Overnight rates 1640 to 1643.
- Service area. BC Hydro's integrated service area. Non-Integrated Areas are excluded.
- A new battery. Batteries already purchased or installed are not eligible. Minimum nominated capacity is 25 kW.
- Behind the meter and non-exporting. The battery cannot export to the grid. This program is not for front-of-the-meter batteries.
- An operating smart meter. Manually read meters do not qualify.
- A 10-year agreement to provide demand flexibility to BC Hydro, with connection to BC Hydro's DERMS.
- 24 months to complete. Installation, energization, commissioning and DERMS integration are due within 24 months of the signed incentive agreement. BC Hydro may extend this in writing, and may allow up to 6 more months where DERMS work is outside your control.
- Credit review. BC Hydro may ask for financial statements or security such as a letter of credit. Small and medium general service customers without a Key Account Manager provide three years of financials and a letter of credit.
A feasibility study is optional. You can go straight to the incentive by submitting BC Hydro's ESI Workbook.
Nominated capacity, reserve and your own peak shaving
Part of your battery is committed to BC Hydro. The rest is yours.
What the battery can actually deliver. Many systems discharge to 5% and charge to 80% to 90% of nameplate.
The energy and power you make available to BC Hydro. This is what the incentive is calculated on.
Energy you choose not to discharge during BC Hydro events, so the site keeps some resilience. You set it on the application.
The available energy you neither nominate nor hold in reserve. You use it for your own peak shaving and BC Hydro does not dispatch it.
Nominated capacity cannot exceed your site's average winter demand: November 1 to March 31, 5 pm to 9 pm, Monday to Saturday, from the prior year's hourly interval data. Holidays are excluded.
- Log in to MyHydro and download hourly consumption for November 1 to March 31.
- Keep only the hours between 5 pm and 9 pm, Monday to Saturday.
- Add up the kWh and divide by the number of hours.
BC Hydro's example: 23,700 kWh over 604 hours is an average winter demand of 39.2 kW, so no more than 39.2 kW can be nominated.
What you commit to
The incentive pays for flexibility, so most of the terms are about being available when BC Hydro calls.
- Up to 4 hours per event, up to 2 events per day, at least 6 hours apart, year round. Events can fall on consecutive days.
- Usually 24 hours notice by email. Events fall on eligible days only: weekends, BC statutory holidays, Boxing Day, Easter Monday and the National Day for Truth and Reconciliation are excluded.
- BC Hydro dispatches the battery automatically through its DERMS. Manual control is not permitted.
- BC Hydro can pre-charge the battery up to 12 hours before an event and delay recharging up to 12 hours after. It will try to schedule charging away from your site peak, but it is not responsible for demand charge increases from charging.
- At the start of each event the battery must hold at least 85% of its nominated energy, not counting your reserve.
- To pass, you must meet that in at least 85% of events during each assessment year, November 1 to October 31.
- If a utility outage is under way when an event starts, you may use the nominated and reserve energy for the site. The event still counts in the assessment.
- You maintain the system, the internet connection and the programming that keeps the nominated capacity available.
Leaving early, closing your BC Hydro account or failing reliability can trigger repayment.
| Trigger | Clawback | Example |
|---|---|---|
| Leaving early or closing the account | Prorated straight-line over 120 months. | $100,000 incentive, left after 39 months: $100,000 × 81 ÷ 120 = $67,500 owing. |
| Failing the annual reliability assessment | 10% of the total incentive, for each failed assessment year. | $250,000 incentive, one failed year: $25,000 owing. |
| Not finishing within 24 months | Incentives received are repaid and the application is cancelled. | Unless BC Hydro approves an extension in writing. |
Eligible costs are not the same as project cost
The 80% applies to eligible costs only. They must be itemized and supported by invoices. BC Hydro can exclude anything it cannot tie directly to purchase, installation, commissioning or DERMS integration.
- Battery modules and racks
- Inverters and power conversion equipment
- Communications and telemetry equipment for DERMS signals
- DERMS connection and integration: software, battery EMS programming, SCADA or IEEE 2030.5/CSIP integration, connectivity testing and commissioning
- Installation and permitting
- Municipal electrical permits, inspections and authority approval fees
- BC Hydro service upgrades and customer-funded distribution upgrades
- Interconnection agreement fees
- Insurance premiums
- Building, land, paving, enclosure or structural work not solely required for the battery
- Shipping, freight, customs, duties, tariffs and import charges
- Operations, maintenance, service agreements, internet and cellular charges after commissioning
- Warranties and extensions, training, financing and recoverable taxes
- Change orders and cost escalations after approval
- Backup-power or resiliency features not required for ESI
Process and payments
Pre-approval comes before any purchase. Buying or installing first forfeits the incentive.
We review 12 months of interval data, your bills and your service. You tell us what fails or costs you money when demand peaks.
We prepare the ESI Workbook, load analysis, single line diagram and technical write-up. The package goes to your BC Hydro Key Account Manager, or to demand.response@bchydro.com if you do not have one.
BC Hydro reviews the site, runs any credit review and emails the incentive agreement if approved. Nothing is bought until this is in hand.
Delivery, installation, permits and inspections. Proof of delivery and cost documentation go to BC Hydro. First tranche: 50%.
Submit the single line diagram, battery and inverter datasheets, protection settings, no-export control design, final inspection certificate, FSR declaration and site emergency response plan. Approval to energize releases the next 25%.
Link the battery to BC Hydro's DERMS by SCADA, IEEE 2030.5/CSIP or API. A successful test dispatch sets the Project Implementation Date and releases the final 25%. This can run in parallel with interconnection.
Respond to events, keep the system available and receive BC Hydro's annual performance report.
Payment: 50% on delivery, 25% on interconnection approval, 25% on DERMS integration.
- 12 months of interval data, 5-minute if available. The review uses this, not nameplate ratings.
- Recent electricity bills
- Your site single line diagram, if you have one
- What fails or costs you money when demand peaks
- If you are a small or medium general service customer without a Key Account Manager, three years of financial statements for the credit review
You pay your own connection costs to the DERMS, such as a gateway and internet or VPN service. BC Hydro covers the charges of its own DERMS provider.
System requirements
The battery has to meet BC Hydro's technical rules in full. Pending compliance is not accepted.
- Chemistry. Lithium-ion electrochemical storage. Other chemistries are not eligible.
- Product standards. UL 9540, UL 9540A, UL 1973 and UN 38.3.
- Power conversion. UL 1741, UL 1741 SB, CSA C22.2 No. 107.1 and IEEE 1547.
- Installation. NFPA 855, the Canadian Electrical Code and BC and local building and safety codes.
- Warranty and efficiency. At least a 10-year manufacturer warranty and at least 80% round-trip efficiency.
- Safety. Fire and deflagration systems.
- Communications. Connection to BC Hydro's DERMS by IEEE 2030.5/CSIP, SCADA, an established API or another method BC Hydro approves.
- Telemetry. Location, charge, discharge, state of charge and event schedule, at 15-minute intervals or better, with at least 7 days stored locally. Data must come from the battery system, not a separate meter.
Arctium systems are supplied with the certifications for these standards. We confirm each requirement against the documentation for your specific system before it goes into the submission.
Case study and the federal tax credit
A Vancouver commercial office with a 641 kW average load and 15-minute spikes to 1,226 kW.
Two FLEX-365 cabinets, 350 kW / 731.5 kWh, outdoor, liquid cooled and non-exporting. 40 kW / 160 kWh is reserved for BC Hydro events. About 310 kW / 571.5 kWh is kept for the building's own peak shaving, which takes about 151 kW off the 1,226 kW peak.
The federal Clean Technology Investment Tax Credit can apply to the part of the battery's capital cost that ESI does not cover, at up to 30%. If ESI covers 80%, that is up to 30% of the remaining 20%, about 6% of project cost, leaving a net cost near 14%. On the case study that is about $27,500 off the $91,734, a net cost near $64,200 and a payback under 3 years.
The credit is claimed by taxable Canadian corporations when they file, so it arrives after filing, not at purchase. Eligibility and the exact amount depend on your tax position. Confirm with your tax advisor.
Reference example from a preliminary technical and financial analysis. Illustrative, not an estimate for your building. Final ESI eligibility is subject to program approval.
When ESI is not the right program
BC Hydro's manual excludes these cases. Some have another route.
- Front-of-the-meter batteries, and batteries that export to the grid
- Residential customers, including home-based businesses on residential rates, and transmission customers
- Independent power producers with BC Hydro power purchase agreements
- Sites where the battery would be the sole backup for lifesaving or life-sustaining equipment, because the battery can run out at any time
- Sites outside BC Hydro's integrated service area
- Batteries already purchased or installed
If you already have a battery, or do not want a 10-year contract, BC Hydro's Demand Response for Business program pays per season with more flexibility. You can take part in both programs at the same time, subject to each program's rules.
BC Hydro ESI: frequently asked questions
How much does the BC Hydro Energy Storage Incentive pay?
The lowest of $10,000 per nominated kW, $10,000 per nominated kWh divided by 4, and 80% of eligible project cost. It is based on the capacity you nominate to BC Hydro, so a large battery with a small nominated share earns less than 80%.
Who is eligible for BC Hydro ESI?
Customers on a small, medium or large general service rate or an irrigation rate, with an operating smart meter, installing a new non-exporting battery behind the meter of at least 25 kW nominated, within BC Hydro's integrated service area. Transmission and residential customers are not eligible.
Can I apply after I have bought or installed the battery?
No. BC Hydro must pre-approve the application before you purchase or install any equipment. Batteries already purchased or installed are not eligible.
Is there an application deadline?
BC Hydro's customer manual does not set an intake window. Program terms can change, so check BC Hydro's program page before you commit. Once your agreement is signed you have 24 months to install, energize and connect to BC Hydro's DERMS.
How much battery can I nominate to BC Hydro?
Up to your site's average winter demand, measured from November 1 to March 31, 5 pm to 9 pm, Monday to Saturday, using the prior year's hourly interval data. The minimum is 25 kW.
Can I still use the battery for my own peak shaving?
Yes. Capacity you do not nominate stays under your control and BC Hydro does not dispatch it. You can also set a reserve that is not discharged during BC Hydro events.
How often will BC Hydro dispatch the battery?
Events last up to 4 hours, with up to 2 per day and at least 6 hours between them, on eligible weekdays, usually with 24 hours notice. They tend to coincide with high demand such as unusually cold or hot weather.
What happens if I leave early or miss the reliability target?
Leaving early or closing your BC Hydro account means repaying the incentive prorated over 120 months. Failing the annual reliability assessment, which requires at least 85% of nominated energy available at the start of at least 85% of events, costs 10% of the total incentive for each failed year.
Which costs count toward the 80%?
Batteries, inverters, DERMS communications and integration, installation and permitting. Service upgrades, interconnection fees, freight and duties, insurance, enclosures and general building work, financing and taxes are excluded.
Can the battery be paired with solar?
Yes, but it must not export to the grid. A battery paired with solar can recharge from the solar at any time. For batteries over 100 kW paired with solar, BC Hydro covers the Distribution Generator Interconnection facilities study where it applies.
Can ESI be combined with other incentives?
The federal Clean Technology Investment Tax Credit can apply to the capital cost ESI does not cover, at up to 30%. You can also take part in BC Hydro's Demand Response for Business program alongside ESI. BC Hydro reviews applications to prevent duplicate incentives for the same thing.
Does ESI pay for backup power?
No. It pays for demand flexibility. A reserve gives the site some resilience, but the battery can run out at any time, so it should not be the sole backup for life-safety equipment.
Sources: BC Hydro: Energy storage incentive | BC Hydro: ESI customer manual (PDF) | BC Hydro: ESI incentive application process (PDF)
P05 — Grid Smoothing & Peak Shaving
We prepare the technical submission, the load analysis and the single line, and work alongside your team through the review.