21.1 Context: Locating Load Near Generation to Reduce Grid Dependency and Accelerate Access
Co-location means placing a new or power-constrained facility close to an existing power source, or restructuring a project so load and generation can be served through a more direct electrical arrangement. In a power access acceleration program, this option becomes relevant when the local utility cannot deliver enough capacity through the normal grid path, but a nearby generator, industrial campus, or energy host may have power infrastructure that can support the load sooner.
The generation source may be a natural gas plant, combined heat and power plant, biomass facility, landfill gas plant, renewable project, industrial cogeneration asset, municipal utility asset, campus energy plant, or private generation facility. The host may also have an underutilized substation, switchyard, transformer, feeder, or interconnection position. In some cases, the opportunity is not the generator itself, but the electrical infrastructure and site rights around it.
Co-location can reduce dependency on constrained distribution infrastructure. Instead of waiting for a new utility feeder or substation expansion, the facility may be served from generation or electrical equipment already connected to the grid. For data centers, large manufacturers, hydrogen projects, cold-storage campuses, or other large loads, this can be especially attractive when the generator has reliable fuel supply, available land, and a feasible commercial structure.
However, proximity is not enough. A facility located beside a power plant does not automatically have the right to use that plant’s output. The generator may have existing contracts, market obligations, interconnection limits, emissions permits, reliability obligations, or financing covenants. The grid may still be needed for backup, imports, exports, or synchronization. Regulators and utilities may need to approve the arrangement, especially if existing transmission or distribution facilities are affected.
The business value of co-location depends on deliverability. Deliverability means the ability to move power from the generation source to the load under real technical, legal, and commercial conditions. The power must be physically deliverable through wires and equipment, legally deliverable under tariffs and regulations, commercially deliverable under contracts, and operationally deliverable when the facility needs it.
Co-location may be a site-selection strategy, a bridge-power strategy, or a permanent operating strategy. If the facility is already under construction, co-location may be difficult unless an adjacent host exists. If the project is still in site selection, co-location can materially change the screening criteria. A site with weaker logistics but faster power access may outperform a better-located site that cannot be energized for years.
A co-location opportunity should be tested before the facility design becomes locked. Once the building location, utility yard, road layout, and electrical rooms are fixed, the cost of moving load closer to generation can rise sharply. Early screening can reveal whether the company should shift to a different parcel, negotiate with an energy host, or reserve land for a dedicated electrical path.
The executive question is not, “Is there a generator nearby?” The better question is, “Can we create a legally sound, technically reliable, commercially attractive power arrangement by locating our load near generation or existing energy infrastructure?”
21.2 Methodology: Evaluating Generators, Campuses, Industrial Hosts, Brownfield Sites, Deliverability, and Regulatory Constraints
The methodology begins by treating co-location as a structured development option, not a speculative real estate idea. The team must evaluate power, land, law, contracts, operations, and execution at the same time.
Step 1: Define the target load and operating requirement. The team should identify the load to be served, required service date, minimum viable operating load, full-build load, reliability requirement, flexibility, ramp-up schedule, and bridge duration. A generator that can support 8 MW of steady baseload may be useful for phase one but inadequate for a 40 MW full-build plan.
Step 2: Identify potential co-location sources. Screen existing generators, industrial campuses, utility-adjacent parcels, brownfield sites, retired plants, underused substations, port facilities, municipal sites, refineries, mills, universities, airports, and large energy users. The screen should include distance, land availability, generator size, apparent spare capacity, grid interconnection, fuel access, environmental constraints, and willingness of the host to transact.
Step 3: Confirm generation status and obligations. The team should determine whether the generator is operating, retired, mothballed, contracted, merchant, utility-owned, privately owned, or subject to financing restrictions. Existing power purchase agreements, capacity obligations, interconnection agreements, market commitments, and emissions permits may limit how much output can be redirected to a co-located load.
Step 4: Evaluate physical deliverability. Electrical engineers should assess how power would move from the generation source to the facility. This includes voltage level, switchyard capacity, transformer capacity, breaker positions, line routing, protection, metering, fault current, grounding, and whether the load connects behind the meter, through a private line, or through utility facilities. The shortest route is not always the feasible route.
Step 5: Evaluate regulatory deliverability. Counsel should review whether the arrangement is allowed under state law, utility franchise rights, wholesale market rules, retail choice rules, generator interconnection agreements, and tariffs. A structure that works in one jurisdiction may be prohibited or require approval in another.
Step 6: Evaluate commercial deliverability. The team should determine who owns the generator, who sells power, who pays for upgrades, who bears fuel risk, who receives renewable or environmental attributes, who handles outages, and who benefits from market revenues. Commercial structures may include a lease, PPA, tolling agreement, capacity reservation, joint venture, land sale, energy services agreement, or host supply arrangement.
Step 7: Review generator reliability and fuel supply. Co-location is only valuable if the power source is available when needed. The team should review maintenance history, forced outage rates, fuel supply, fuel price exposure, emissions limits, seasonal derates, cooling water, spare parts, staffing, and remaining asset life. A cheap power source with poor availability may not support a critical facility.
Step 8: Assess land, site, and infrastructure fit. The site must support the facility’s operations as well as the power strategy. Review acreage, zoning, environmental conditions, geotechnical issues, flood risk, transportation access, fiber, water, wastewater, security, setbacks, fire access, and expansion space. Brownfield sites may have attractive power infrastructure but environmental or redevelopment risks.
Step 9: Define grid interaction and backup service. Even with co-located generation, the facility may need utility service for backup, supplemental power, black start, exports, maintenance periods, or generator outages. The team should clarify standby service, import limits, export rights, synchronization, protection, and whether the utility must study the load as part of the wider system.
Step 10: Model economics and risk. The business case should compare co-location with standard utility service, temporary generation, batteries, gas engines, fuel cells, and alternate sites. Include land cost, electrical upgrades, generation cost, fuel, O&M, standby charges, market exposure, permits, construction, delay avoided, contract term, residual value, and downside cases.
Step 11: Build the stakeholder and approval plan. Co-location may involve the host, utility, grid operator, regulator, landlord, lenders, environmental agencies, local government, community groups, and customers. The plan should identify approvals, filings, studies, permits, communications, and objections that could affect schedule.
Step 12: Negotiate and preserve optionality. Early agreements should protect access to land, data, interconnection information, engineering studies, and commercial exclusivity while the project is tested. The company should avoid committing to an expensive site or contract before confirming technical and regulatory feasibility.
Because co-location can change the entire project footprint, the analysis should be coordinated with site selection, utility strategy, and facility ramp-up planning. A promising host may justify a modified building layout, a different phased load plan, or a hybrid supply structure that combines co-located generation with limited utility service and storage.
The team should also create a fatal-flaw screen. Typical fatal flaws include no legal right to sell power, no route for an electrical line, generator capacity already committed, insufficient fuel supply, interconnection limits that prohibit the arrangement, environmental permit limits, unacceptable site contamination, or a host unwilling to assume operational risk. Eliminating these issues early prevents expensive engineering work on an option that cannot close.
The main deliverable is a co-location feasibility package. It should define the host site, generation source, available capacity, connection concept, legal path, commercial structure, site constraints, approval requirements, schedule, cost, risks, and fallback plan. It should also state whether co-location is a bridge solution, permanent solution, or site-selection alternative.
21.3 Skills Required: Site Selection, Generation Interconnection, Power Markets, Real Estate, Regulatory Strategy, Commercial Structuring
Site selection expertise is required because co-location is not only a power decision. The site must still satisfy logistics, labor, customer access, permitting, water, wastewater, fiber, taxes, community acceptance, and expansion needs. A power-rich site can still fail if the business cannot operate effectively there.
Generation interconnection expertise is essential. The advisor must understand how the generator connects to the grid, what rights the interconnection agreement provides, what limits apply, and whether a new load can be connected without triggering major studies or violations. This includes protection, metering, deliverability, market registration, and operating restrictions.
Power markets expertise is needed when the generator participates in wholesale markets, capacity markets, ancillary services, or renewable programs. Redirecting output to a co-located load can affect market revenue, settlement, congestion, capacity obligations, and environmental attributes. The commercial model must reflect those opportunity costs.
Real estate expertise is required to manage land control, easements, access rights, title, environmental due diligence, brownfield liabilities, landlord approvals, and development restrictions. A co-location strategy can collapse if the power path crosses land the parties cannot control.
Regulatory strategy is critical because co-location may raise questions about retail sales, utility service territories, cost shifting, grid reliability, standby service, and generator interconnection rights. Regulatory advisors help determine when utility engagement, commission approval, or market-operator review is required.
Project finance expertise is often required because co-location agreements can blend real estate, infrastructure, energy, and market exposure. The finance lead should model credit requirements, long-term obligations, termination payments, fuel indexation, avoided delay, and the value of optionality if permanent utility service arrives earlier or later than expected.
Commercial structuring brings the pieces together. The structure must allocate fuel risk, outage risk, upgrade cost, market revenue, environmental attributes, tax benefits, insurance, operating responsibility, and exit rights. The team may also need electrical engineering, environmental permitting, project finance, tax, insurance, operations, and community engagement support.
21.4 Terminology: Co-Location, Behind-the-Meter Generation, Front-of-the-Meter Generation, Deliverability, Host Site, and Stranded Capacity
Co-location: Locating a load near generation or existing electrical infrastructure so the facility can access power more directly, quickly, or economically than through a standard utility expansion.
Behind-the-meter generation: Generation located on the customer side of the utility meter and used primarily to serve the customer’s load. Rules depend on utility tariffs and local regulation.
Front-of-the-meter generation: Generation connected to the utility or transmission system and typically operated for wholesale, utility, or market purposes rather than only one customer’s load.
Deliverability: The ability to supply power to a load under actual physical, contractual, regulatory, and operational conditions. Nameplate generation capacity does not guarantee deliverability.
Host site: The generator, industrial campus, landlord, utility-adjacent parcel, or energy infrastructure owner that may support the co-located facility.
Stranded capacity: Electrical or generation capacity that exists but is unused, underused, contractually constrained, or not easily deliverable to a new load.
Power purchase agreement: A contract under which one party buys electricity from another under defined price, volume, term, delivery, and performance conditions.
Tolling agreement: A contract in which one party provides or pays for fuel and receives power output from a generation asset, often paying the plant owner for conversion service.
Standby service: Utility service kept available to support the facility when on-site or co-located generation is unavailable or insufficient.
Interconnection rights: Rights and obligations governing how a generator or load connects to the grid, including limits on capacity, operation, protection, and upgrades.
Brownfield site: Previously developed property that may have existing infrastructure but also environmental, permitting, demolition, or redevelopment issues.
Environmental attributes: Certificates, credits, or claims associated with generation characteristics, such as renewable energy certificates or emissions benefits.
