This page compares the main engagement types SgurrEnergy offers on renewable energy projects, including technical due diligence, owner's engineering, lender's technical advisory, EPCM and EPC. It explains who each is for, what each delivers and when each fits, so developers, investors, lenders and owners can choose the right support.
Advisory Engagement Types Compared
Technical due diligence, owner's engineering and lender's technical advisory are distinct roles, even though they draw on the same engineering disciplines.
Technical Due Diligence
An independent, point-in-time technical review of a project or portfolio, usually for an acquisition, financing or investment decision. Primarily for investors and lenders; output is a risk view and inputs to the financial model.
Owner's Engineering
An ongoing owner-side advisory and oversight role across design, procurement, construction and commissioning. Primarily for developers, IPPs and owners; output is design review, specifications and construction assurance in the owner's interest.
Lender's Technical Advisory
An independent role serving the financing parties, spanning bankability and due diligence before close and construction monitoring and drawdown verification afterwards. Primarily for lenders; output supports credit and risk decisions.
How they overlap
All three are independent and engineering-led and may review the same project, but they differ in whose interest they serve, whether they are point-in-time or ongoing, and whether they include a delivery or oversight role.
EPCM vs EPC Delivery Models
EPCM and EPC are alternative ways to deliver construction of a project; the difference is mainly in risk, transparency and control.
EPC (turnkey)
A single contractor takes responsibility for engineering, procurement and construction at a fixed price, carrying most delivery risk. Offers simplicity and risk transfer, with less owner visibility and control during execution.
EPCM (owner-managed)
The owner contracts directly with suppliers and contractors while a consultant manages engineering, procurement and construction. Offers cost transparency and control, with more risk retained by the owner and a need for owner-side management.
Choosing between them
EPC can suit owners seeking risk transfer and simplicity; EPCM can suit owners wanting transparency, control and the ability to optimise. The right choice depends on the project, organisation and risk appetite.
Where owner's engineering fits
Owners using an EPC contractor often appoint an owner's engineer for independent oversight, whereas under EPCM the consultant takes a managed delivery role; the two are complementary, not the same.
Explore Each Engagement in Detail
Read the focused page for any engagement type to see what it covers, who it is for and the questions it answers.
Technical Due Diligence
Independent technical review for acquisition, financing and investment decisions.
ExploreOwner's Engineering
Owner-side engineering across design, procurement, construction and commissioning.
ExploreLender's Technical Advisory
Bankability, monitoring and drawdown support for financing parties.
ExploreEPCM for Renewable Projects
Owner-managed engineering, procurement and construction management.
ExploreEPCM vs EPC
A vendor-neutral comparison of the two delivery models.
ExploreBESS Due Diligence
Battery-specific due diligence for investors and lenders.
ExploreNot sure which engagement you need?
Tell us your role, your project and the decision you face, and we will recommend the engagement type that gives you the right independent support.